./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9ad7fb26 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:09:41,307 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:09:41,310 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:09:41,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:09:41,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:09:41,374 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:09:41,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:09:41,377 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:09:41,379 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:09:41,381 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:09:41,382 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:09:41,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:09:41,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:09:41,385 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:09:41,386 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:09:41,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:09:41,389 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:09:41,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:09:41,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:09:41,394 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:09:41,396 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:09:41,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:09:41,399 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:09:41,400 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:09:41,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:09:41,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:09:41,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:09:41,406 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:09:41,406 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:09:41,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:09:41,408 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:09:41,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:09:41,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:09:41,411 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:09:41,412 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:09:41,412 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:09:41,413 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:09:41,413 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:09:41,414 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:09:41,415 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:09:41,416 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:09:41,419 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-11-03 04:09:41,464 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:09:41,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:09:41,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:09:41,466 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:09:41,467 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:09:41,467 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:09:41,467 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-11-03 04:09:41,467 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:09:41,468 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:09:41,468 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-11-03 04:09:41,469 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-11-03 04:09:41,469 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:09:41,470 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-11-03 04:09:41,470 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-11-03 04:09:41,470 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-11-03 04:09:41,471 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:09:41,471 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:09:41,471 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-03 04:09:41,472 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:09:41,472 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:09:41,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:09:41,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:09:41,473 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:09:41,473 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:09:41,473 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:09:41,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:09:41,474 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:09:41,474 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:09:41,474 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:09:41,474 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:09:41,475 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:09:41,475 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:09:41,475 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:09:41,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:09:41,476 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-11-03 04:09:41,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-03 04:09:41,476 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:09:41,477 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:09:41,477 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:09:41,477 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc [2021-11-03 04:09:41,722 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:09:41,747 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:09:41,749 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:09:41,750 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:09:41,751 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:09:41,751 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2021-11-03 04:09:41,814 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/6b5205132/e1deab8041b24783bd30eb4ebed2ba5e/FLAG901b6f593 [2021-11-03 04:09:42,366 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:09:42,372 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2021-11-03 04:09:42,388 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/6b5205132/e1deab8041b24783bd30eb4ebed2ba5e/FLAG901b6f593 [2021-11-03 04:09:42,655 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/6b5205132/e1deab8041b24783bd30eb4ebed2ba5e [2021-11-03 04:09:42,658 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:09:42,659 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:09:42,667 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:09:42,667 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:09:42,671 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:09:42,671 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:42" (1/1) ... [2021-11-03 04:09:42,672 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4743465d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:42, skipping insertion in model container [2021-11-03 04:09:42,673 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:09:42" (1/1) ... [2021-11-03 04:09:42,680 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:09:42,742 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:09:43,152 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30440,30453] [2021-11-03 04:09:43,162 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30895,30908] [2021-11-03 04:09:43,168 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:09:43,178 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:09:43,211 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30440,30453] [2021-11-03 04:09:43,214 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30895,30908] [2021-11-03 04:09:43,219 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:09:43,271 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:09:43,271 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43 WrapperNode [2021-11-03 04:09:43,271 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:09:43,274 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:09:43,274 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:09:43,274 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:09:43,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,319 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:09:43,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:09:43,366 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:09:43,366 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:09:43,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,376 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,385 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,391 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,396 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:09:43,396 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:09:43,397 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:09:43,397 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:09:43,398 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (1/1) ... [2021-11-03 04:09:43,415 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:09:43,427 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:09:43,448 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:09:43,465 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:09:43,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-03 04:09:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-03 04:09:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-03 04:09:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-03 04:09:43,496 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-03 04:09:43,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-03 04:09:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-03 04:09:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:09:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:09:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:09:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-03 04:09:43,497 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:09:43,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:09:43,499 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 04:09:44,042 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:09:44,046 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 04:09:44,049 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:44 BoogieIcfgContainer [2021-11-03 04:09:44,049 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:09:44,051 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:09:44,051 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:09:44,056 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:09:44,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:09:42" (1/3) ... [2021-11-03 04:09:44,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1d42be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:44, skipping insertion in model container [2021-11-03 04:09:44,058 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:09:43" (2/3) ... [2021-11-03 04:09:44,058 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e1d42be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:09:44, skipping insertion in model container [2021-11-03 04:09:44,059 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:44" (3/3) ... [2021-11-03 04:09:44,060 INFO L111 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2021-11-03 04:09:44,067 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 04:09:44,067 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:09:44,067 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-03 04:09:44,067 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 04:09:44,135 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,136 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,136 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,136 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,137 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,137 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,137 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,137 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,138 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,138 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,138 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,138 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,139 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,140 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,140 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,140 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,140 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,141 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,141 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,141 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,142 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,142 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,142 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,142 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,143 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,143 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,143 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,143 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,144 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,144 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,144 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,157 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,157 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,158 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,158 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,158 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,158 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,159 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,159 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,159 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,159 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,159 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,160 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,160 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,160 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,160 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,161 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,161 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,161 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,162 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,162 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,162 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,162 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,163 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,163 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,163 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,164 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,164 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,164 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,164 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,165 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,165 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,166 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,166 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,166 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,166 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,167 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,167 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,167 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,167 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,167 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,168 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,168 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,168 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,168 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,169 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,169 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,169 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,170 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,170 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,170 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,170 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,171 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,171 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,171 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,172 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,173 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,173 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,173 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,173 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,174 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,174 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,174 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,175 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,175 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,175 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,175 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,176 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,176 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,176 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,176 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,177 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,177 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,177 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,177 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,178 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,178 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,178 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,179 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,179 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,179 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,180 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,180 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,180 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,180 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,181 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,181 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,181 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,182 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,182 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,182 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,182 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,182 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,183 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,183 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,183 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,183 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,184 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,184 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,184 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,184 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,185 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,185 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,188 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,189 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,189 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,189 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,189 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,190 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,190 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,190 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,191 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,191 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,191 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,195 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,196 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,196 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,196 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,196 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,197 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,197 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,197 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,197 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,198 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,198 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:09:44,204 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-03 04:09:44,253 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:09:44,260 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:09:44,260 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:09:44,277 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:09:44,289 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 135 places, 138 transitions, 292 flow [2021-11-03 04:09:44,293 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 135 places, 138 transitions, 292 flow [2021-11-03 04:09:44,295 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 135 places, 138 transitions, 292 flow [2021-11-03 04:09:44,364 INFO L129 PetriNetUnfolder]: 10/136 cut-off events. [2021-11-03 04:09:44,365 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-03 04:09:44,370 INFO L84 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 136 events. 10/136 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 253 event pairs, 0 based on Foata normal form. 0/124 useless extension candidates. Maximal degree in co-relation 85. Up to 2 conditions per place. [2021-11-03 04:09:44,376 INFO L116 LiptonReduction]: Number of co-enabled transitions 3840 [2021-11-03 04:10:05,327 INFO L131 LiptonReduction]: Checked pairs total: 6984 [2021-11-03 04:10:05,327 INFO L133 LiptonReduction]: Total number of compositions: 132 [2021-11-03 04:10:05,336 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 35 transitions, 86 flow [2021-11-03 04:10:05,361 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 216 states, 213 states have (on average 2.9342723004694835) internal successors, (625), 215 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,364 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 213 states have (on average 2.9342723004694835) internal successors, (625), 215 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 04:10:05,369 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:10:05,369 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 04:10:05,370 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:10:05,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:10:05,375 INFO L85 PathProgramCache]: Analyzing trace with hash 17138848, now seen corresponding path program 1 times [2021-11-03 04:10:05,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:10:05,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1319096059] [2021-11-03 04:10:05,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:05,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:10:05,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:10:05,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:10:05,569 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:10:05,569 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1319096059] [2021-11-03 04:10:05,570 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1319096059] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:10:05,570 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:10:05,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-11-03 04:10:05,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1849778008] [2021-11-03 04:10:05,577 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:10:05,577 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:10:05,595 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:10:05,595 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:10:05,599 INFO L87 Difference]: Start difference. First operand has 216 states, 213 states have (on average 2.9342723004694835) internal successors, (625), 215 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:10:05,634 INFO L93 Difference]: Finished difference Result 196 states and 550 transitions. [2021-11-03 04:10:05,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:10:05,635 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-03 04:10:05,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:10:05,647 INFO L225 Difference]: With dead ends: 196 [2021-11-03 04:10:05,648 INFO L226 Difference]: Without dead ends: 180 [2021-11-03 04:10:05,649 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:10:05,665 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-03 04:10:05,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-03 04:10:05,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.8268156424581004) internal successors, (506), 179 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 506 transitions. [2021-11-03 04:10:05,703 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 506 transitions. Word has length 4 [2021-11-03 04:10:05,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:10:05,704 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 506 transitions. [2021-11-03 04:10:05,705 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,705 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 506 transitions. [2021-11-03 04:10:05,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:10:05,706 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:10:05,707 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:10:05,707 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-03 04:10:05,707 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:10:05,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:10:05,708 INFO L85 PathProgramCache]: Analyzing trace with hash -1926637502, now seen corresponding path program 1 times [2021-11-03 04:10:05,708 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:10:05,709 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1125781047] [2021-11-03 04:10:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:05,709 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:10:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:10:05,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:10:05,824 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:10:05,824 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1125781047] [2021-11-03 04:10:05,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1125781047] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:10:05,825 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:10:05,825 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:10:05,825 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1520849585] [2021-11-03 04:10:05,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:10:05,827 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:10:05,827 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:10:05,828 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:10:05,828 INFO L87 Difference]: Start difference. First operand 180 states and 506 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:10:05,867 INFO L93 Difference]: Finished difference Result 278 states and 758 transitions. [2021-11-03 04:10:05,868 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:10:05,868 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 04:10:05,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:10:05,872 INFO L225 Difference]: With dead ends: 278 [2021-11-03 04:10:05,873 INFO L226 Difference]: Without dead ends: 256 [2021-11-03 04:10:05,874 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:10:05,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-03 04:10:05,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-03 04:10:05,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 2.764705882352941) internal successors, (705), 255 states have internal predecessors, (705), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,918 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 705 transitions. [2021-11-03 04:10:05,918 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 705 transitions. Word has length 8 [2021-11-03 04:10:05,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:10:05,919 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 705 transitions. [2021-11-03 04:10:05,919 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:05,919 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 705 transitions. [2021-11-03 04:10:05,922 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 04:10:05,922 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:10:05,922 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:10:05,923 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-03 04:10:05,923 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:10:05,923 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:10:05,924 INFO L85 PathProgramCache]: Analyzing trace with hash 1059620303, now seen corresponding path program 1 times [2021-11-03 04:10:05,924 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:10:05,924 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928939576] [2021-11-03 04:10:05,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:05,925 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:10:05,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:10:06,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:10:06,011 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:10:06,011 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928939576] [2021-11-03 04:10:06,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928939576] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:10:06,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:10:06,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-11-03 04:10:06,012 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372501372] [2021-11-03 04:10:06,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:10:06,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:10:06,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:10:06,014 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:10:06,026 INFO L87 Difference]: Start difference. First operand 256 states and 705 transitions. Second operand has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:06,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:10:06,053 INFO L93 Difference]: Finished difference Result 158 states and 369 transitions. [2021-11-03 04:10:06,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:10:06,053 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 04:10:06,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:10:06,055 INFO L225 Difference]: With dead ends: 158 [2021-11-03 04:10:06,055 INFO L226 Difference]: Without dead ends: 152 [2021-11-03 04:10:06,056 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:10:06,056 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2021-11-03 04:10:06,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 128. [2021-11-03 04:10:06,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 128 states, 127 states have (on average 2.377952755905512) internal successors, (302), 127 states have internal predecessors, (302), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:06,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 128 states to 128 states and 302 transitions. [2021-11-03 04:10:06,066 INFO L78 Accepts]: Start accepts. Automaton has 128 states and 302 transitions. Word has length 12 [2021-11-03 04:10:06,066 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:10:06,066 INFO L470 AbstractCegarLoop]: Abstraction has 128 states and 302 transitions. [2021-11-03 04:10:06,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:06,067 INFO L276 IsEmpty]: Start isEmpty. Operand 128 states and 302 transitions. [2021-11-03 04:10:06,068 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-11-03 04:10:06,068 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:10:06,068 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:10:06,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-03 04:10:06,069 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:10:06,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:10:06,070 INFO L85 PathProgramCache]: Analyzing trace with hash 647880648, now seen corresponding path program 1 times [2021-11-03 04:10:06,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:10:06,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [254940248] [2021-11-03 04:10:06,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:06,071 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:10:06,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:10:06,379 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:10:06,379 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:10:06,379 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [254940248] [2021-11-03 04:10:06,379 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [254940248] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-03 04:10:06,380 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:10:06,380 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-11-03 04:10:06,380 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [243255059] [2021-11-03 04:10:06,381 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:10:06,381 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:10:06,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:10:06,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:10:06,385 INFO L87 Difference]: Start difference. First operand 128 states and 302 transitions. Second operand has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:06,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:10:06,417 INFO L93 Difference]: Finished difference Result 150 states and 349 transitions. [2021-11-03 04:10:06,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:10:06,418 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2021-11-03 04:10:06,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:10:06,422 INFO L225 Difference]: With dead ends: 150 [2021-11-03 04:10:06,422 INFO L226 Difference]: Without dead ends: 150 [2021-11-03 04:10:06,422 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:10:06,423 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150 states. [2021-11-03 04:10:06,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150 to 144. [2021-11-03 04:10:06,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 2.3566433566433567) internal successors, (337), 143 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:06,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 337 transitions. [2021-11-03 04:10:06,432 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 337 transitions. Word has length 13 [2021-11-03 04:10:06,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:10:06,433 INFO L470 AbstractCegarLoop]: Abstraction has 144 states and 337 transitions. [2021-11-03 04:10:06,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.333333333333333) internal successors, (13), 2 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:06,433 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 337 transitions. [2021-11-03 04:10:06,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 04:10:06,435 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:10:06,435 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:10:06,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-03 04:10:06,436 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:10:06,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:10:06,437 INFO L85 PathProgramCache]: Analyzing trace with hash -2072940198, now seen corresponding path program 1 times [2021-11-03 04:10:06,437 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:10:06,437 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257489286] [2021-11-03 04:10:06,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:06,438 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:10:06,461 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 04:10:06,462 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2083470646] [2021-11-03 04:10:06,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:06,462 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:10:06,462 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:10:06,464 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:10:06,467 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-11-03 04:10:06,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:10:06,684 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 14 conjunts are in the unsatisfiable core [2021-11-03 04:10:06,688 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:10:06,960 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:10:06,960 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:10:07,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:10:07,454 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:10:07,454 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257489286] [2021-11-03 04:10:07,454 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:10:07,455 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2083470646] [2021-11-03 04:10:07,455 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2083470646] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:10:07,455 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:10:07,455 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 4] imperfect sequences [] total 6 [2021-11-03 04:10:07,455 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1002425052] [2021-11-03 04:10:07,456 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-03 04:10:07,456 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-11-03 04:10:07,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-03 04:10:07,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:10:07,457 INFO L87 Difference]: Start difference. First operand 144 states and 337 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:11,945 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:10:11,945 INFO L93 Difference]: Finished difference Result 364 states and 843 transitions. [2021-11-03 04:10:11,946 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:10:11,946 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 04:10:11,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:10:11,950 INFO L225 Difference]: With dead ends: 364 [2021-11-03 04:10:11,950 INFO L226 Difference]: Without dead ends: 364 [2021-11-03 04:10:11,950 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2021-11-03 04:10:11,952 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2021-11-03 04:10:11,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 298. [2021-11-03 04:10:11,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 2.420875420875421) internal successors, (719), 297 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:11,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 719 transitions. [2021-11-03 04:10:11,973 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 719 transitions. Word has length 15 [2021-11-03 04:10:11,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:10:11,973 INFO L470 AbstractCegarLoop]: Abstraction has 298 states and 719 transitions. [2021-11-03 04:10:11,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 6 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:10:11,974 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 719 transitions. [2021-11-03 04:10:11,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:10:11,976 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:10:11,976 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:10:12,017 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2021-11-03 04:10:12,198 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:10:12,199 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:10:12,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:10:12,199 INFO L85 PathProgramCache]: Analyzing trace with hash 163356816, now seen corresponding path program 1 times [2021-11-03 04:10:12,199 INFO L121 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-11-03 04:10:12,200 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751388211] [2021-11-03 04:10:12,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:12,200 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-03 04:10:12,214 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-11-03 04:10:12,214 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [82629603] [2021-11-03 04:10:12,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:10:12,215 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-11-03 04:10:12,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:10:12,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-11-03 04:10:12,226 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-11-03 04:10:12,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:10:12,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 21 conjunts are in the unsatisfiable core [2021-11-03 04:10:12,422 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:10:12,501 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-03 04:10:12,502 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 246 treesize of output 234 [2021-11-03 04:10:12,528 INFO L139 FreeRefinementEngine]: Strategy SIFA_TAIPAN found an infeasible trace [2021-11-03 04:10:12,528 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751388211] [2021-11-03 04:10:12,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2021-11-03 04:10:12,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [82629603] [2021-11-03 04:10:12,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_DEPENDING: need array sort [2021-11-03 04:10:12,529 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1700677955] [2021-11-03 04:10:12,536 FATAL L? ?]: Ignoring exception! java.lang.UnsupportedOperationException: Cannot create path program transition for IcfgForkThreadOtherTransition at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:295) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.createPathProgramTransition(PathProgram.java:270) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:183) at java.base/java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:177) at java.base/java.util.HashMap$KeySpliterator.forEachRemaining(HashMap.java:1603) at java.base/java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:484) at java.base/java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:474) at java.base/java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:150) at java.base/java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:173) at java.base/java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234) at java.base/java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:497) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram$PathProgramConstructor.(PathProgram.java:235) at de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.cfg.PathProgram.constructPathProgram(PathProgram.java:112) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.SifaRunner.(SifaRunner.java:91) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSifa.construct(IpTcStrategyModuleSifa.java:67) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:268) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:150) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:140) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:609) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:226) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-11-03 04:10:12,539 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:10:12,539 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [] total 0 [2021-11-03 04:10:12,540 ERROR L172 FreeRefinementEngine]: Strategy SIFA_TAIPAN failed to provide any proof altough trace is infeasible [2021-11-03 04:10:12,540 INFO L627 BasicCegarLoop]: Counterexample might be feasible [2021-11-03 04:10:12,545 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:10:12,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:10:12,547 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:10:12,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:10:12,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:10:12,548 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:10:12,574 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:10:12,758 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable5 [2021-11-03 04:10:12,763 INFO L731 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1] [2021-11-03 04:10:12,770 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 04:10:12,770 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:10:12,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:10:12 BasicIcfg [2021-11-03 04:10:12,794 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:10:12,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:10:12,795 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:10:12,795 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:10:12,795 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:09:44" (3/4) ... [2021-11-03 04:10:12,798 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-11-03 04:10:12,798 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:10:12,799 INFO L168 Benchmark]: Toolchain (without parser) took 30139.26 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 79.0 MB in the beginning and 44.9 MB in the end (delta: 34.1 MB). Peak memory consumption was 57.5 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:12,800 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 111.1 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:10:12,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 605.12 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 75.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:12,801 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.88 ms. Allocated memory is still 111.1 MB. Free memory was 75.5 MB in the beginning and 73.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:12,802 INFO L168 Benchmark]: Boogie Preprocessor took 30.63 ms. Allocated memory is still 111.1 MB. Free memory was 73.4 MB in the beginning and 71.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:12,803 INFO L168 Benchmark]: RCFGBuilder took 652.60 ms. Allocated memory is still 111.1 MB. Free memory was 71.7 MB in the beginning and 56.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:12,804 INFO L168 Benchmark]: TraceAbstraction took 28743.10 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 56.2 MB in the beginning and 46.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:12,813 INFO L168 Benchmark]: Witness Printer took 3.63 ms. Allocated memory is still 134.2 MB. Free memory was 46.0 MB in the beginning and 44.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:10:12,817 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 111.1 MB. Free memory is still 63.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 605.12 ms. Allocated memory is still 111.1 MB. Free memory was 78.7 MB in the beginning and 75.5 MB in the end (delta: 3.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.88 ms. Allocated memory is still 111.1 MB. Free memory was 75.5 MB in the beginning and 73.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 30.63 ms. Allocated memory is still 111.1 MB. Free memory was 73.4 MB in the beginning and 71.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 652.60 ms. Allocated memory is still 111.1 MB. Free memory was 71.7 MB in the beginning and 56.6 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 28743.10 ms. Allocated memory was 111.1 MB in the beginning and 134.2 MB in the end (delta: 23.1 MB). Free memory was 56.2 MB in the beginning and 46.0 MB in the end (delta: 10.2 MB). Peak memory consumption was 34.9 MB. Max. memory is 16.1 GB. * Witness Printer took 3.63 ms. Allocated memory is still 134.2 MB. Free memory was 46.0 MB in the beginning and 44.9 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 21.0s, 135 PlacesBefore, 35 PlacesAfterwards, 138 TransitionsBefore, 35 TransitionsAfterwards, 3840 CoEnabledTransitionPairs, 6 FixpointIterations, 46 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 18 ConcurrentYvCompositions, 3 ChoiceCompositions, 132 TotalNumberOfCompositions, 6984 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 4771, positive: 4601, positive conditional: 0, positive unconditional: 4601, negative: 170, negative conditional: 0, negative unconditional: 170, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2824, positive: 2774, positive conditional: 0, positive unconditional: 2774, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2824, positive: 2735, positive conditional: 0, positive unconditional: 2735, negative: 89, negative conditional: 0, negative unconditional: 89, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 89, positive: 39, positive conditional: 0, positive unconditional: 39, negative: 46, negative conditional: 0, negative unconditional: 46, unknown: 4, unknown conditional: 0, unknown unconditional: 4] , SemanticIndependenceRelation.Query Time [ms]: [ total: 12265, positive: 91, positive conditional: 0, positive unconditional: 91, negative: 191, negative conditional: 0, negative unconditional: 191, unknown: 11983, unknown conditional: 0, unknown unconditional: 11983] ], Cache Queries: [ total: 4771, positive: 1827, positive conditional: 0, positive unconditional: 1827, negative: 120, negative conditional: 0, negative unconditional: 120, unknown: 2824, unknown conditional: 0, unknown unconditional: 2824] , Statistics on independence cache: Total cache size (in pairs): 207, Positive cache size: 188, Positive conditional cache size: 0, Positive unconditional cache size: 188, Negative cache size: 19, Negative conditional cache size: 0, Negative unconditional cache size: 19 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 746]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: unable to decide satisfiability of path constraint. Possible FailurePath: [L682] 0 static char buffer[10]; [L683] 0 static unsigned int first; [L684] 0 static unsigned int next; [L685] 0 static int buffer_size; [L686] 0 _Bool send, receive; [L687] 0 pthread_mutex_t m; [L756] 0 pthread_t id1, id2; [L690] 0 buffer_size = max [L691] EXPR 0 next = 0 [L691] 0 first = next = 0 [L759] 0 send=1 [L760] 0 receive=0 [L761] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) [L762] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) [L739] 2 int i; [L740] 2 i=0 [L723] 1 int i; [L724] 1 i=0 [L724] COND TRUE 1 i<7 [L727] COND TRUE 1 \read(send) [L707] COND TRUE 1 next < buffer_size && buffer_size > 0 [L709] 1 buffer[next] = b [L710] 1 next = (next+1)%buffer_size [L712] COND FALSE 1 !(next 0 && first < buffer_size [L697] 2 first++ [L698] EXPR 2 buffer[first-1] [L698] 2 return buffer[first-1]; [L745] COND FALSE 2 !(removeLogElement()==i) [L746] 2 reach_error() - UnprovableResult [Line: 762]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 197 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 28.5s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 21.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 150 SDtfs, 172 SDslu, 136 SDs, 0 SdLazy, 49 SolverSat, 14 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 4.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred in iteration=5, InterpolantAutomatonStates: 17, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 96 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 603 SizeOfPredicates, 5 NumberOfNonLiveVariables, 329 ConjunctsInSsa, 35 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-11-03 04:10:12,893 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc --- Real Ultimate output --- This is Ultimate 0.2.1-dev-9ad7fb2 [2021-11-03 04:10:15,367 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-03 04:10:15,371 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-03 04:10:15,405 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-03 04:10:15,406 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-03 04:10:15,407 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-03 04:10:15,409 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-03 04:10:15,412 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-03 04:10:15,414 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-03 04:10:15,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-03 04:10:15,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-03 04:10:15,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-03 04:10:15,419 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-03 04:10:15,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-03 04:10:15,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-03 04:10:15,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-03 04:10:15,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-03 04:10:15,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-03 04:10:15,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-03 04:10:15,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-03 04:10:15,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-03 04:10:15,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-03 04:10:15,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-03 04:10:15,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-03 04:10:15,446 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-03 04:10:15,449 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-03 04:10:15,449 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-03 04:10:15,452 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-03 04:10:15,454 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-03 04:10:15,455 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-03 04:10:15,456 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-03 04:10:15,457 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-03 04:10:15,458 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-03 04:10:15,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-03 04:10:15,469 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-03 04:10:15,469 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-03 04:10:15,470 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-03 04:10:15,470 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-03 04:10:15,471 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-03 04:10:15,473 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-03 04:10:15,473 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-03 04:10:15,474 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2021-11-03 04:10:15,527 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-03 04:10:15,527 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-03 04:10:15,529 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-03 04:10:15,529 INFO L138 SettingsManager]: * User list type=DISABLED [2021-11-03 04:10:15,529 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-11-03 04:10:15,530 INFO L138 SettingsManager]: * Explicit value domain=true [2021-11-03 04:10:15,530 INFO L138 SettingsManager]: * Octagon Domain=false [2021-11-03 04:10:15,530 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-11-03 04:10:15,531 INFO L138 SettingsManager]: * Interval Domain=false [2021-11-03 04:10:15,533 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-03 04:10:15,534 INFO L138 SettingsManager]: * sizeof long=4 [2021-11-03 04:10:15,534 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-11-03 04:10:15,535 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-03 04:10:15,535 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-03 04:10:15,535 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-03 04:10:15,535 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-03 04:10:15,536 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-11-03 04:10:15,536 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-11-03 04:10:15,536 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-11-03 04:10:15,536 INFO L138 SettingsManager]: * sizeof long double=12 [2021-11-03 04:10:15,536 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-03 04:10:15,537 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-03 04:10:15,537 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-03 04:10:15,537 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-03 04:10:15,537 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-03 04:10:15,538 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-03 04:10:15,538 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:15,538 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-03 04:10:15,539 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-03 04:10:15,539 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-03 04:10:15,539 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2021-11-03 04:10:15,539 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-11-03 04:10:15,540 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-03 04:10:15,540 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-03 04:10:15,540 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-11-03 04:10:15,540 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a5ee9b9286f55973fff2cea9c449f3602c5be2a48fed2e7e6cce6beebc18d9bc [2021-11-03 04:10:15,990 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-03 04:10:16,020 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-03 04:10:16,023 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-03 04:10:16,024 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-03 04:10:16,025 INFO L275 PluginConnector]: CDTParser initialized [2021-11-03 04:10:16,028 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/../../sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2021-11-03 04:10:16,108 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/06c7faf5f/b8a0c1ce97694125876b049c3a20835e/FLAG08f89c778 [2021-11-03 04:10:16,703 INFO L306 CDTParser]: Found 1 translation units. [2021-11-03 04:10:16,704 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i [2021-11-03 04:10:16,728 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/06c7faf5f/b8a0c1ce97694125876b049c3a20835e/FLAG08f89c778 [2021-11-03 04:10:17,114 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/data/06c7faf5f/b8a0c1ce97694125876b049c3a20835e [2021-11-03 04:10:17,116 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-03 04:10:17,118 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-03 04:10:17,120 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:17,120 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-03 04:10:17,123 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-03 04:10:17,124 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef9a113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17, skipping insertion in model container [2021-11-03 04:10:17,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,134 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-03 04:10:17,177 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-03 04:10:17,586 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30440,30453] [2021-11-03 04:10:17,623 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30895,30908] [2021-11-03 04:10:17,638 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:17,655 INFO L203 MainTranslator]: Completed pre-run [2021-11-03 04:10:17,720 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30440,30453] [2021-11-03 04:10:17,730 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/sv-benchmarks/c/pthread-deagle/circular_buffer_bad.i[30895,30908] [2021-11-03 04:10:17,736 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-11-03 04:10:17,805 INFO L208 MainTranslator]: Completed translation [2021-11-03 04:10:17,805 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17 WrapperNode [2021-11-03 04:10:17,805 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-03 04:10:17,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-03 04:10:17,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-03 04:10:17,807 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-03 04:10:17,814 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,856 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,902 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-03 04:10:17,903 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-03 04:10:17,903 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-03 04:10:17,903 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-03 04:10:17,913 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,914 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,933 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,944 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,961 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,968 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,981 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-03 04:10:17,986 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-03 04:10:17,986 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-03 04:10:17,987 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-03 04:10:17,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (1/1) ... [2021-11-03 04:10:17,994 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-03 04:10:18,005 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 [2021-11-03 04:10:18,017 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-03 04:10:18,046 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-03 04:10:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE1 [2021-11-03 04:10:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-11-03 04:10:18,063 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2021-11-03 04:10:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2021-11-03 04:10:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2021-11-03 04:10:18,064 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2021-11-03 04:10:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-11-03 04:10:18,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-03 04:10:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE1 [2021-11-03 04:10:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-03 04:10:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-11-03 04:10:18,065 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-03 04:10:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE2 [2021-11-03 04:10:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2021-11-03 04:10:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE4 [2021-11-03 04:10:18,066 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-03 04:10:18,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-03 04:10:18,068 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-11-03 04:10:18,594 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-03 04:10:18,594 INFO L299 CfgBuilder]: Removed 12 assume(true) statements. [2021-11-03 04:10:18,596 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:18 BoogieIcfgContainer [2021-11-03 04:10:18,596 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-03 04:10:18,598 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-03 04:10:18,612 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-03 04:10:18,615 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-03 04:10:18,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.11 04:10:17" (1/3) ... [2021-11-03 04:10:18,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559cb7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:10:18, skipping insertion in model container [2021-11-03 04:10:18,617 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.11 04:10:17" (2/3) ... [2021-11-03 04:10:18,617 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559cb7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.11 04:10:18, skipping insertion in model container [2021-11-03 04:10:18,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:18" (3/3) ... [2021-11-03 04:10:18,619 INFO L111 eAbstractionObserver]: Analyzing ICFG circular_buffer_bad.i [2021-11-03 04:10:18,625 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-11-03 04:10:18,625 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-03 04:10:18,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2021-11-03 04:10:18,625 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-11-03 04:10:18,712 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,714 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,715 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,716 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,716 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,730 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,731 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,731 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,731 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,731 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,732 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,732 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,732 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,732 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,733 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,733 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,733 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,733 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,734 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,734 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,734 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,734 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,735 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,735 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,735 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,736 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,736 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,736 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,736 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,737 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,737 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,737 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,737 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,737 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,738 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,738 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,738 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,738 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,738 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,739 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,739 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,739 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,739 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,740 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,740 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,740 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,740 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,741 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,741 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,741 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,742 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,742 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,742 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,742 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,743 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,743 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,743 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,743 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,744 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,744 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,745 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,745 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,745 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,746 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,746 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,746 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,747 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,747 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,751 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,751 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,752 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,752 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,752 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,753 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,753 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,753 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,753 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,754 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,754 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,754 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,754 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,755 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,755 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,756 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,766 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,767 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,768 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,768 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,768 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,768 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,769 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,769 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,769 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,769 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,769 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,770 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,771 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,771 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,771 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,772 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,773 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,773 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,774 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,774 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,774 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,774 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,775 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,775 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,775 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,775 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,776 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,777 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,778 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,781 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~mem4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,782 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~post8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,782 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~nondet9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,783 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#t~ret10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,783 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,783 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,783 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,783 WARN L313 ript$VariableManager]: TermVariabe t2Thread1of1ForFork0_~i~1 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,784 WARN L313 ript$VariableManager]: TermVariabe |t2Thread1of1ForFork0_removeLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,790 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~ret7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,791 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,792 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,792 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,792 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,792 WARN L313 ript$VariableManager]: TermVariabe t1Thread1of1ForFork1_insertLogElement_~b not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_insertLogElement_#in~b| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,793 WARN L313 ript$VariableManager]: TermVariabe |t1Thread1of1ForFork1_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-11-03 04:10:18,811 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-11-03 04:10:18,866 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-03 04:10:18,873 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-03 04:10:18,874 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-11-03 04:10:18,916 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-11-03 04:10:18,932 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 134 places, 137 transitions, 290 flow [2021-11-03 04:10:18,941 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 134 places, 137 transitions, 290 flow [2021-11-03 04:10:18,943 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 134 places, 137 transitions, 290 flow [2021-11-03 04:10:19,061 INFO L129 PetriNetUnfolder]: 10/135 cut-off events. [2021-11-03 04:10:19,062 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-11-03 04:10:19,068 INFO L84 FinitePrefix]: Finished finitePrefix Result has 144 conditions, 135 events. 10/135 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 246 event pairs, 0 based on Foata normal form. 0/123 useless extension candidates. Maximal degree in co-relation 84. Up to 2 conditions per place. [2021-11-03 04:10:19,077 INFO L116 LiptonReduction]: Number of co-enabled transitions 3664 [2021-11-03 04:11:16,095 INFO L131 LiptonReduction]: Checked pairs total: 7939 [2021-11-03 04:11:16,095 INFO L133 LiptonReduction]: Total number of compositions: 131 [2021-11-03 04:11:16,104 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 35 transitions, 86 flow [2021-11-03 04:11:16,129 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 216 states, 213 states have (on average 2.9342723004694835) internal successors, (625), 215 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:16,143 INFO L276 IsEmpty]: Start isEmpty. Operand has 216 states, 213 states have (on average 2.9342723004694835) internal successors, (625), 215 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:16,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2021-11-03 04:11:16,148 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:16,149 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2021-11-03 04:11:16,149 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting t1Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:16,154 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:16,155 INFO L85 PathProgramCache]: Analyzing trace with hash 16896978, now seen corresponding path program 1 times [2021-11-03 04:11:16,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:16,167 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1676081605] [2021-11-03 04:11:16,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:16,168 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:16,168 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:16,169 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:16,202 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-11-03 04:11:16,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:16,329 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjunts are in the unsatisfiable core [2021-11-03 04:11:16,333 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:16,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:16,390 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:16,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:16,399 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:16,400 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1676081605] [2021-11-03 04:11:16,400 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1676081605] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:16,401 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:16,401 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1, 1] imperfect sequences [] total 1 [2021-11-03 04:11:16,402 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1184665583] [2021-11-03 04:11:16,406 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2021-11-03 04:11:16,407 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:16,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-11-03 04:11:16,443 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:11:16,446 INFO L87 Difference]: Start difference. First operand has 216 states, 213 states have (on average 2.9342723004694835) internal successors, (625), 215 states have internal predecessors, (625), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:16,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:16,493 INFO L93 Difference]: Finished difference Result 196 states and 550 transitions. [2021-11-03 04:11:16,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-11-03 04:11:16,495 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2021-11-03 04:11:16,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:16,509 INFO L225 Difference]: With dead ends: 196 [2021-11-03 04:11:16,521 INFO L226 Difference]: Without dead ends: 180 [2021-11-03 04:11:16,522 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-11-03 04:11:16,549 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 180 states. [2021-11-03 04:11:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 180 to 180. [2021-11-03 04:11:16,592 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 179 states have (on average 2.8268156424581004) internal successors, (506), 179 states have internal predecessors, (506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:16,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 506 transitions. [2021-11-03 04:11:16,599 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 506 transitions. Word has length 4 [2021-11-03 04:11:16,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:16,600 INFO L470 AbstractCegarLoop]: Abstraction has 180 states and 506 transitions. [2021-11-03 04:11:16,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 1 states have (on average 4.0) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 506 transitions. [2021-11-03 04:11:16,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-11-03 04:11:16,602 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:16,602 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:16,618 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (2)] Ended with exit code 0 [2021-11-03 04:11:16,816 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:16,816 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:16,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:16,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1621965913, now seen corresponding path program 1 times [2021-11-03 04:11:16,818 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:16,818 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1573025899] [2021-11-03 04:11:16,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:16,818 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:16,818 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:16,821 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:16,859 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-11-03 04:11:16,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:16,927 INFO L263 TraceCheckSpWp]: Trace formula consists of 76 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:11:16,928 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:16,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:17,000 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:17,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:17,035 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:17,035 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1573025899] [2021-11-03 04:11:17,036 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1573025899] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:17,036 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:17,036 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-11-03 04:11:17,036 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1169538950] [2021-11-03 04:11:17,037 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:11:17,037 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:17,038 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:11:17,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:11:17,039 INFO L87 Difference]: Start difference. First operand 180 states and 506 transitions. Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:17,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:17,104 INFO L93 Difference]: Finished difference Result 278 states and 758 transitions. [2021-11-03 04:11:17,110 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:11:17,110 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2021-11-03 04:11:17,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:17,114 INFO L225 Difference]: With dead ends: 278 [2021-11-03 04:11:17,114 INFO L226 Difference]: Without dead ends: 256 [2021-11-03 04:11:17,115 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:11:17,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 256 states. [2021-11-03 04:11:17,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 256 to 256. [2021-11-03 04:11:17,136 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 2.7490196078431373) internal successors, (701), 255 states have internal predecessors, (701), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:17,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 701 transitions. [2021-11-03 04:11:17,142 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 701 transitions. Word has length 8 [2021-11-03 04:11:17,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:17,142 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 701 transitions. [2021-11-03 04:11:17,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:17,143 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 701 transitions. [2021-11-03 04:11:17,145 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-11-03 04:11:17,145 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:17,145 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:17,161 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:17,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:17,358 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:17,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:17,359 INFO L85 PathProgramCache]: Analyzing trace with hash -607118321, now seen corresponding path program 1 times [2021-11-03 04:11:17,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:17,360 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564893969] [2021-11-03 04:11:17,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:17,360 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:17,360 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:17,361 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:17,414 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-11-03 04:11:17,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:17,497 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 5 conjunts are in the unsatisfiable core [2021-11-03 04:11:17,498 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:17,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:17,602 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:17,681 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:17,682 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:17,682 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564893969] [2021-11-03 04:11:17,682 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1564893969] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:17,682 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:17,683 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2021-11-03 04:11:17,683 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2095031989] [2021-11-03 04:11:17,683 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-03 04:11:17,683 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:17,684 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-03 04:11:17,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:11:17,684 INFO L87 Difference]: Start difference. First operand 256 states and 701 transitions. Second operand has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:17,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:17,767 INFO L93 Difference]: Finished difference Result 286 states and 752 transitions. [2021-11-03 04:11:17,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-11-03 04:11:17,772 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2021-11-03 04:11:17,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:17,777 INFO L225 Difference]: With dead ends: 286 [2021-11-03 04:11:17,777 INFO L226 Difference]: Without dead ends: 286 [2021-11-03 04:11:17,777 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-11-03 04:11:17,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 286 states. [2021-11-03 04:11:17,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 286 to 256. [2021-11-03 04:11:17,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 256 states, 255 states have (on average 2.631372549019608) internal successors, (671), 255 states have internal predecessors, (671), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:17,804 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 256 states to 256 states and 671 transitions. [2021-11-03 04:11:17,804 INFO L78 Accepts]: Start accepts. Automaton has 256 states and 671 transitions. Word has length 12 [2021-11-03 04:11:17,804 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:17,804 INFO L470 AbstractCegarLoop]: Abstraction has 256 states and 671 transitions. [2021-11-03 04:11:17,805 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.25) internal successors, (17), 3 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:17,805 INFO L276 IsEmpty]: Start isEmpty. Operand 256 states and 671 transitions. [2021-11-03 04:11:17,807 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-11-03 04:11:17,807 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:17,807 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:17,819 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:18,018 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:18,019 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:18,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:18,019 INFO L85 PathProgramCache]: Analyzing trace with hash -1071934079, now seen corresponding path program 1 times [2021-11-03 04:11:18,020 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:18,020 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1055557137] [2021-11-03 04:11:18,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:18,021 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:18,021 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:18,022 INFO L229 MonitoredProcess]: Starting monitored process 5 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:18,023 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-11-03 04:11:18,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:18,184 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 2 conjunts are in the unsatisfiable core [2021-11-03 04:11:18,185 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:18,222 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2021-11-03 04:11:18,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:18,276 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:18,326 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:18,327 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:18,327 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1055557137] [2021-11-03 04:11:18,327 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1055557137] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:18,328 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:18,328 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2021-11-03 04:11:18,328 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [903601402] [2021-11-03 04:11:18,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-11-03 04:11:18,329 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:18,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-11-03 04:11:18,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:11:18,330 INFO L87 Difference]: Start difference. First operand 256 states and 671 transitions. Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:18,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:18,380 INFO L93 Difference]: Finished difference Result 150 states and 336 transitions. [2021-11-03 04:11:18,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-11-03 04:11:18,381 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2021-11-03 04:11:18,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:18,383 INFO L225 Difference]: With dead ends: 150 [2021-11-03 04:11:18,383 INFO L226 Difference]: Without dead ends: 144 [2021-11-03 04:11:18,383 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-11-03 04:11:18,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2021-11-03 04:11:18,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 120. [2021-11-03 04:11:18,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 119 states have (on average 2.310924369747899) internal successors, (275), 119 states have internal predecessors, (275), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:18,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 275 transitions. [2021-11-03 04:11:18,394 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 275 transitions. Word has length 14 [2021-11-03 04:11:18,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:18,394 INFO L470 AbstractCegarLoop]: Abstraction has 120 states and 275 transitions. [2021-11-03 04:11:18,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:18,395 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 275 transitions. [2021-11-03 04:11:18,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-11-03 04:11:18,396 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:18,396 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:18,413 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:18,612 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:18,612 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:18,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:18,613 INFO L85 PathProgramCache]: Analyzing trace with hash -1846301136, now seen corresponding path program 1 times [2021-11-03 04:11:18,614 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:18,614 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [682857133] [2021-11-03 04:11:18,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:18,614 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:18,614 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:18,615 INFO L229 MonitoredProcess]: Starting monitored process 6 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:18,617 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-11-03 04:11:18,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:18,796 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 7 conjunts are in the unsatisfiable core [2021-11-03 04:11:18,798 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:19,435 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:19,435 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:20,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:20,628 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:20,628 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [682857133] [2021-11-03 04:11:20,628 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [682857133] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:20,629 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:20,629 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2021-11-03 04:11:20,629 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86597250] [2021-11-03 04:11:20,629 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-03 04:11:20,629 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:20,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-03 04:11:20,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-11-03 04:11:20,630 INFO L87 Difference]: Start difference. First operand 120 states and 275 transitions. Second operand has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:21,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:21,473 INFO L93 Difference]: Finished difference Result 380 states and 857 transitions. [2021-11-03 04:11:21,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-11-03 04:11:21,474 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2021-11-03 04:11:21,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:21,478 INFO L225 Difference]: With dead ends: 380 [2021-11-03 04:11:21,478 INFO L226 Difference]: Without dead ends: 380 [2021-11-03 04:11:21,478 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2021-11-03 04:11:21,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2021-11-03 04:11:21,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 310. [2021-11-03 04:11:21,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 310 states, 309 states have (on average 2.365695792880259) internal successors, (731), 309 states have internal predecessors, (731), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:21,510 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 310 states to 310 states and 731 transitions. [2021-11-03 04:11:21,510 INFO L78 Accepts]: Start accepts. Automaton has 310 states and 731 transitions. Word has length 15 [2021-11-03 04:11:21,511 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:21,511 INFO L470 AbstractCegarLoop]: Abstraction has 310 states and 731 transitions. [2021-11-03 04:11:21,511 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.833333333333333) internal successors, (29), 5 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:21,511 INFO L276 IsEmpty]: Start isEmpty. Operand 310 states and 731 transitions. [2021-11-03 04:11:21,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:11:21,512 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:21,512 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:21,534 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:21,712 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:21,713 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:21,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:21,713 INFO L85 PathProgramCache]: Analyzing trace with hash -1400759691, now seen corresponding path program 1 times [2021-11-03 04:11:21,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:21,714 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [633103850] [2021-11-03 04:11:21,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:21,714 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:21,714 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:21,717 INFO L229 MonitoredProcess]: Starting monitored process 7 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:21,722 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-11-03 04:11:21,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-03 04:11:21,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:11:21,937 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:22,161 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-03 04:11:22,388 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-03 04:11:22,415 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:22,416 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:22,580 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-11-03 04:11:22,586 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-03 04:11:22,834 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:22,834 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:22,834 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [633103850] [2021-11-03 04:11:22,834 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [633103850] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:22,835 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:22,835 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-11-03 04:11:22,835 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1476960775] [2021-11-03 04:11:22,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 04:11:22,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:22,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 04:11:22,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=143, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:11:22,837 INFO L87 Difference]: Start difference. First operand 310 states and 731 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:23,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:23,695 INFO L93 Difference]: Finished difference Result 412 states and 949 transitions. [2021-11-03 04:11:23,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-11-03 04:11:23,695 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:11:23,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:23,698 INFO L225 Difference]: With dead ends: 412 [2021-11-03 04:11:23,699 INFO L226 Difference]: Without dead ends: 396 [2021-11-03 04:11:23,699 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=185, Unknown=0, NotChecked=0, Total=240 [2021-11-03 04:11:23,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2021-11-03 04:11:23,708 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 346. [2021-11-03 04:11:23,709 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 346 states, 345 states have (on average 2.36231884057971) internal successors, (815), 345 states have internal predecessors, (815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:23,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 346 states to 346 states and 815 transitions. [2021-11-03 04:11:23,710 INFO L78 Accepts]: Start accepts. Automaton has 346 states and 815 transitions. Word has length 16 [2021-11-03 04:11:23,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:23,710 INFO L470 AbstractCegarLoop]: Abstraction has 346 states and 815 transitions. [2021-11-03 04:11:23,711 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:23,711 INFO L276 IsEmpty]: Start isEmpty. Operand 346 states and 815 transitions. [2021-11-03 04:11:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:11:23,713 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:23,713 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:23,731 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:23,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:23,928 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:23,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:23,928 INFO L85 PathProgramCache]: Analyzing trace with hash 761165725, now seen corresponding path program 2 times [2021-11-03 04:11:23,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:23,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1624026250] [2021-11-03 04:11:23,929 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-11-03 04:11:23,929 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:23,929 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:23,930 INFO L229 MonitoredProcess]: Starting monitored process 8 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:23,935 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-11-03 04:11:24,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2021-11-03 04:11:24,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:11:24,182 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 13 conjunts are in the unsatisfiable core [2021-11-03 04:11:24,183 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:24,355 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-03 04:11:24,578 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-03 04:11:24,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:24,604 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:24,796 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2021-11-03 04:11:24,800 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 30 [2021-11-03 04:11:24,937 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:24,937 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:24,937 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1624026250] [2021-11-03 04:11:24,937 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1624026250] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:24,937 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:24,938 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 12 [2021-11-03 04:11:24,938 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [548189296] [2021-11-03 04:11:24,938 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-11-03 04:11:24,938 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:24,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-11-03 04:11:24,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=146, Unknown=0, NotChecked=0, Total=182 [2021-11-03 04:11:24,939 INFO L87 Difference]: Start difference. First operand 346 states and 815 transitions. Second operand has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:26,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:26,025 INFO L93 Difference]: Finished difference Result 495 states and 1140 transitions. [2021-11-03 04:11:26,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 04:11:26,026 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:11:26,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:26,031 INFO L225 Difference]: With dead ends: 495 [2021-11-03 04:11:26,031 INFO L226 Difference]: Without dead ends: 474 [2021-11-03 04:11:26,031 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=69, Invalid=237, Unknown=0, NotChecked=0, Total=306 [2021-11-03 04:11:26,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474 states. [2021-11-03 04:11:26,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474 to 364. [2021-11-03 04:11:26,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 364 states, 363 states have (on average 2.369146005509642) internal successors, (860), 363 states have internal predecessors, (860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:26,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 860 transitions. [2021-11-03 04:11:26,046 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 860 transitions. Word has length 16 [2021-11-03 04:11:26,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:26,047 INFO L470 AbstractCegarLoop]: Abstraction has 364 states and 860 transitions. [2021-11-03 04:11:26,047 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.4615384615384617) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:26,047 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 860 transitions. [2021-11-03 04:11:26,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-11-03 04:11:26,048 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:26,048 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:26,074 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:26,263 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:26,264 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:26,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:26,264 INFO L85 PathProgramCache]: Analyzing trace with hash 1270587527, now seen corresponding path program 3 times [2021-11-03 04:11:26,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:26,265 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [603464872] [2021-11-03 04:11:26,265 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-11-03 04:11:26,265 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:26,265 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:26,266 INFO L229 MonitoredProcess]: Starting monitored process 9 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:26,267 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2021-11-03 04:11:26,491 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2021-11-03 04:11:26,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-11-03 04:11:26,502 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 17 conjunts are in the unsatisfiable core [2021-11-03 04:11:26,503 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-11-03 04:11:26,533 INFO L354 Elim1Store]: treesize reduction 24, result has 4.0 percent of original size [2021-11-03 04:11:26,534 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 334 treesize of output 318 [2021-11-03 04:11:27,037 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 8 [2021-11-03 04:11:27,210 INFO L354 Elim1Store]: treesize reduction 25, result has 21.9 percent of original size [2021-11-03 04:11:27,210 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 23 [2021-11-03 04:11:27,393 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 10 [2021-11-03 04:11:27,427 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:27,427 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-11-03 04:11:37,791 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 90 treesize of output 84 [2021-11-03 04:11:38,030 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-11-03 04:11:38,030 INFO L139 FreeRefinementEngine]: Strategy WALRUS found an infeasible trace [2021-11-03 04:11:38,031 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [603464872] [2021-11-03 04:11:38,031 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [603464872] provided 2 perfect and 0 imperfect interpolant sequences [2021-11-03 04:11:38,031 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-11-03 04:11:38,031 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 14 [2021-11-03 04:11:38,031 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1644684843] [2021-11-03 04:11:38,031 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2021-11-03 04:11:38,032 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2021-11-03 04:11:38,032 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-11-03 04:11:38,032 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=193, Unknown=3, NotChecked=0, Total=240 [2021-11-03 04:11:38,033 INFO L87 Difference]: Start difference. First operand 364 states and 860 transitions. Second operand has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:39,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-03 04:11:39,241 INFO L93 Difference]: Finished difference Result 536 states and 1237 transitions. [2021-11-03 04:11:39,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-11-03 04:11:39,242 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2021-11-03 04:11:39,242 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-03 04:11:39,246 INFO L225 Difference]: With dead ends: 536 [2021-11-03 04:11:39,246 INFO L226 Difference]: Without dead ends: 514 [2021-11-03 04:11:39,247 INFO L786 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 68 ImplicationChecksByTransitivity, 10.7s TimeCoverageRelationStatistics Valid=105, Invalid=354, Unknown=3, NotChecked=0, Total=462 [2021-11-03 04:11:39,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 514 states. [2021-11-03 04:11:39,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 514 to 372. [2021-11-03 04:11:39,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 372 states, 371 states have (on average 2.3665768194070083) internal successors, (878), 371 states have internal predecessors, (878), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:39,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 372 states to 372 states and 878 transitions. [2021-11-03 04:11:39,261 INFO L78 Accepts]: Start accepts. Automaton has 372 states and 878 transitions. Word has length 16 [2021-11-03 04:11:39,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-03 04:11:39,261 INFO L470 AbstractCegarLoop]: Abstraction has 372 states and 878 transitions. [2021-11-03 04:11:39,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 2.1333333333333333) internal successors, (32), 15 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-11-03 04:11:39,262 INFO L276 IsEmpty]: Start isEmpty. Operand 372 states and 878 transitions. [2021-11-03 04:11:39,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2021-11-03 04:11:39,263 INFO L505 BasicCegarLoop]: Found error trace [2021-11-03 04:11:39,263 INFO L513 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:39,278 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:39,478 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:39,478 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting t2Err0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, t1Err0ASSERT_VIOLATIONERROR_FUNCTION, t2Err0ASSERT_VIOLATIONERROR_FUNCTION (and 2 more)] === [2021-11-03 04:11:39,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-03 04:11:39,479 INFO L85 PathProgramCache]: Analyzing trace with hash 1660827993, now seen corresponding path program 1 times [2021-11-03 04:11:39,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy WALRUS [2021-11-03 04:11:39,479 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [943119732] [2021-11-03 04:11:39,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-03 04:11:39,480 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-11-03 04:11:39,480 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat [2021-11-03 04:11:39,480 INFO L229 MonitoredProcess]: Starting monitored process 10 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-11-03 04:11:39,482 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2021-11-03 04:11:39,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:11:39,787 INFO L355 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-11-03 04:11:39,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-11-03 04:11:39,985 INFO L133 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2021-11-03 04:11:39,986 INFO L627 BasicCegarLoop]: Counterexample is feasible [2021-11-03 04:11:39,987 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:11:39,988 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION [2021-11-03 04:11:39,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATION [2021-11-03 04:11:39,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:11:39,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t2Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:11:39,989 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location t1Err0ASSERT_VIOLATIONERROR_FUNCTION [2021-11-03 04:11:40,005 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 (10)] Forceful destruction successful, exit code 0 [2021-11-03 04:11:40,190 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/mathsat -unsat_core_generation=3 [2021-11-03 04:11:40,192 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1] [2021-11-03 04:11:40,196 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-11-03 04:11:40,197 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-11-03 04:11:40,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.11 04:11:40 BasicIcfg [2021-11-03 04:11:40,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-11-03 04:11:40,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-11-03 04:11:40,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-11-03 04:11:40,303 INFO L275 PluginConnector]: Witness Printer initialized [2021-11-03 04:11:40,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.11 04:10:18" (3/4) ... [2021-11-03 04:11:40,306 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-11-03 04:11:40,371 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/witness.graphml [2021-11-03 04:11:40,374 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-11-03 04:11:40,375 INFO L168 Benchmark]: Toolchain (without parser) took 83256.90 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 40.9 MB in the beginning and 49.4 MB in the end (delta: -8.5 MB). Peak memory consumption was 14.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:40,375 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-11-03 04:11:40,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 686.10 ms. Allocated memory is still 62.9 MB. Free memory was 40.7 MB in the beginning and 36.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:40,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 95.49 ms. Allocated memory is still 62.9 MB. Free memory was 36.3 MB in the beginning and 34.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:40,377 INFO L168 Benchmark]: Boogie Preprocessor took 82.60 ms. Allocated memory is still 62.9 MB. Free memory was 34.0 MB in the beginning and 32.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:40,378 INFO L168 Benchmark]: RCFGBuilder took 610.35 ms. Allocated memory is still 62.9 MB. Free memory was 31.8 MB in the beginning and 38.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:40,378 INFO L168 Benchmark]: TraceAbstraction took 81704.51 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 37.5 MB in the beginning and 56.4 MB in the end (delta: -18.9 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:40,379 INFO L168 Benchmark]: Witness Printer took 71.16 ms. Allocated memory is still 83.9 MB. Free memory was 56.4 MB in the beginning and 49.4 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2021-11-03 04:11:40,381 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 62.9 MB. Free memory is still 43.0 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 686.10 ms. Allocated memory is still 62.9 MB. Free memory was 40.7 MB in the beginning and 36.3 MB in the end (delta: 4.3 MB). Peak memory consumption was 16.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 95.49 ms. Allocated memory is still 62.9 MB. Free memory was 36.3 MB in the beginning and 34.0 MB in the end (delta: 2.4 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 82.60 ms. Allocated memory is still 62.9 MB. Free memory was 34.0 MB in the beginning and 32.0 MB in the end (delta: 1.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 610.35 ms. Allocated memory is still 62.9 MB. Free memory was 31.8 MB in the beginning and 38.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 81704.51 ms. Allocated memory was 62.9 MB in the beginning and 83.9 MB in the end (delta: 21.0 MB). Free memory was 37.5 MB in the beginning and 56.4 MB in the end (delta: -18.9 MB). Peak memory consumption was 38.3 MB. Max. memory is 16.1 GB. * Witness Printer took 71.16 ms. Allocated memory is still 83.9 MB. Free memory was 56.4 MB in the beginning and 49.4 MB in the end (delta: 7.0 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 57.1s, 134 PlacesBefore, 35 PlacesAfterwards, 137 TransitionsBefore, 35 TransitionsAfterwards, 3664 CoEnabledTransitionPairs, 8 FixpointIterations, 47 TrivialSequentialCompositions, 65 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 3 ChoiceCompositions, 131 TotalNumberOfCompositions, 7939 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 5224, positive: 4984, positive conditional: 0, positive unconditional: 4984, negative: 240, negative conditional: 0, negative unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2770, positive: 2715, positive conditional: 0, positive unconditional: 2715, negative: 55, negative conditional: 0, negative unconditional: 55, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 2770, positive: 2646, positive conditional: 0, positive unconditional: 2646, negative: 124, negative conditional: 0, negative unconditional: 124, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 124, positive: 69, positive conditional: 0, positive unconditional: 69, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 5, unknown conditional: 0, unknown unconditional: 5] , SemanticIndependenceRelation.Query Time [ms]: [ total: 23553, positive: 287, positive conditional: 0, positive unconditional: 287, negative: 462, negative conditional: 0, negative unconditional: 462, unknown: 22804, unknown conditional: 0, unknown unconditional: 22804] ], Cache Queries: [ total: 5224, positive: 2269, positive conditional: 0, positive unconditional: 2269, negative: 185, negative conditional: 0, negative unconditional: 185, unknown: 2770, unknown conditional: 0, unknown unconditional: 2770] , Statistics on independence cache: Total cache size (in pairs): 235, Positive cache size: 215, Positive conditional cache size: 0, Positive unconditional cache size: 215, Negative cache size: 20, Negative conditional cache size: 0, Negative unconditional cache size: 20 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 746]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L682] 0 static char buffer[10]; [L683] 0 static unsigned int first; [L684] 0 static unsigned int next; [L685] 0 static int buffer_size; [L686] 0 _Bool send, receive; [L687] 0 pthread_mutex_t m; [L756] 0 pthread_t id1, id2; [L690] 0 buffer_size = max [L691] EXPR 0 next = 0 [L691] 0 first = next = 0 [L759] 0 send=1 [L760] 0 receive=0 [L761] FCALL, FORK 0 pthread_create(&id1, ((void *)0), t1, ((void *)0)) VAL [buffer={-1073741873:0}, buffer_size=10, first=0, m={1073741771:0}, next=0, receive=0, send=1] [L723] 1 int i; [L724] 1 i=0 VAL [buffer={-1073741873:0}, buffer_size=10, first=0, m={1073741771:0}, next=0, receive=0, send=1] [L762] FCALL, FORK 0 pthread_create(&id2, ((void *)0), t2, ((void *)0)) VAL [buffer={-1073741873:0}, buffer_size=10, first=0, m={1073741771:0}, next=0, receive=0, send=1] [L739] 2 int i; [L740] 2 i=0 VAL [buffer={-1073741873:0}, buffer_size=10, first=0, m={1073741771:0}, next=0, receive=0, send=1] [L740] COND TRUE 2 i<7 [L743] COND FALSE 2 !(\read(receive)) VAL [buffer={-1073741873:0}, buffer_size=10, first=0, m={1073741771:0}, next=0, receive=0, send=1] [L740] 2 i++ VAL [buffer={-1073741873:0}, buffer_size=10, first=0, m={1073741771:0}, next=0, receive=0, send=1] [L724] COND TRUE 1 i<7 [L727] COND TRUE 1 \read(send) [L707] COND TRUE 1 next < buffer_size && buffer_size > 0 [L709] 1 buffer[next] = b VAL [buffer={-1073741873:0}, buffer_size=10, first=0, m={1073741771:0}, next=0, receive=0, send=1] [L710] 1 next = (next+1)%buffer_size [L712] COND TRUE 1 next 0 && first < buffer_size [L697] 2 first++ [L698] EXPR 2 buffer[first-1] [L698] 2 return buffer[first-1]; [L745] COND FALSE 2 !(removeLogElement()==i) [L746] 2 reach_error() VAL [buffer={-1073741873:0}, buffer_size=10, first=1, m={1073741771:0}, next=1, receive=1, send=0] - UnprovableResult [Line: 762]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 713]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 194 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 81.3s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 4.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 57.2s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 248 SDtfs, 472 SDslu, 608 SDs, 0 SdLazy, 915 SolverSat, 119 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 199 GetRequests, 139 SyntacticMatches, 1 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 12.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=372occurred in iteration=8, InterpolantAutomatonStates: 49, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 426 StatesRemovedByMinimization, 6 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 15.5s InterpolantComputationTime, 119 NumberOfCodeBlocks, 119 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 186 ConstructedInterpolants, 5 QuantifiedInterpolants, 1674 SizeOfPredicates, 54 NumberOfNonLiveVariables, 718 ConjunctsInSsa, 60 ConjunctsInUnsatCore, 16 InterpolantComputations, 16 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2021-11-03 04:11:40,500 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_0321ad0a-e43f-469e-af0a-c12f3cdd20df/bin/utaipan-aC7eJsxGYH/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE