./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-wmm/safe023_tso.opt.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4e77c044 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-wmm/safe023_tso.opt.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d3cc59967c9878975720f1b2e67b62ec3484487d .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-4e77c04 [2021-10-13 00:28:18,203 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-13 00:28:18,205 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-13 00:28:18,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-13 00:28:18,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-13 00:28:18,253 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-13 00:28:18,255 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-13 00:28:18,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-13 00:28:18,259 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-13 00:28:18,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-13 00:28:18,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-13 00:28:18,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-13 00:28:18,264 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-13 00:28:18,265 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-13 00:28:18,267 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-13 00:28:18,268 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-13 00:28:18,269 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-13 00:28:18,270 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-13 00:28:18,273 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-13 00:28:18,275 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-13 00:28:18,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-13 00:28:18,286 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-13 00:28:18,287 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-13 00:28:18,288 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-13 00:28:18,292 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-13 00:28:18,292 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-13 00:28:18,292 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-13 00:28:18,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-13 00:28:18,294 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-13 00:28:18,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-13 00:28:18,296 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-13 00:28:18,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-13 00:28:18,297 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-13 00:28:18,298 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-13 00:28:18,300 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-13 00:28:18,300 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-13 00:28:18,308 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-13 00:28:18,309 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-13 00:28:18,309 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-13 00:28:18,310 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-13 00:28:18,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-13 00:28:18,312 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-13 00:28:18,359 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-13 00:28:18,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-13 00:28:18,360 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-13 00:28:18,360 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-13 00:28:18,368 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-13 00:28:18,368 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-13 00:28:18,368 INFO L138 SettingsManager]: * Use SBE=true [2021-10-13 00:28:18,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-13 00:28:18,369 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-13 00:28:18,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-13 00:28:18,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-13 00:28:18,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-13 00:28:18,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-13 00:28:18,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-13 00:28:18,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-13 00:28:18,371 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-13 00:28:18,372 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-13 00:28:18,372 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-13 00:28:18,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-13 00:28:18,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-13 00:28:18,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-13 00:28:18,373 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-13 00:28:18,373 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:28:18,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-13 00:28:18,373 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-13 00:28:18,374 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-13 00:28:18,374 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-13 00:28:18,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-13 00:28:18,374 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-13 00:28:18,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-13 00:28:18,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3cc59967c9878975720f1b2e67b62ec3484487d [2021-10-13 00:28:18,674 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-13 00:28:18,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-13 00:28:18,709 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-13 00:28:18,710 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-13 00:28:18,711 INFO L275 PluginConnector]: CDTParser initialized [2021-10-13 00:28:18,712 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/../../sv-benchmarks/c/pthread-wmm/safe023_tso.opt.i [2021-10-13 00:28:18,813 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/data/b98dc1d71/bc4277572bc44bada618f5482c35a8f9/FLAGd85cdf020 [2021-10-13 00:28:19,370 INFO L306 CDTParser]: Found 1 translation units. [2021-10-13 00:28:19,371 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/sv-benchmarks/c/pthread-wmm/safe023_tso.opt.i [2021-10-13 00:28:19,392 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/data/b98dc1d71/bc4277572bc44bada618f5482c35a8f9/FLAGd85cdf020 [2021-10-13 00:28:19,681 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/data/b98dc1d71/bc4277572bc44bada618f5482c35a8f9 [2021-10-13 00:28:19,684 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-13 00:28:19,686 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-13 00:28:19,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-13 00:28:19,688 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-13 00:28:19,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-13 00:28:19,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:28:19" (1/1) ... [2021-10-13 00:28:19,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4210e0c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:19, skipping insertion in model container [2021-10-13 00:28:19,694 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 12:28:19" (1/1) ... [2021-10-13 00:28:19,701 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-13 00:28:19,739 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-13 00:28:19,923 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_a3298f00-d119-4716-80a9-3b6a20bc57c9/sv-benchmarks/c/pthread-wmm/safe023_tso.opt.i[949,962] [2021-10-13 00:28:20,130 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:28:20,138 INFO L203 MainTranslator]: Completed pre-run [2021-10-13 00:28:20,150 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_a3298f00-d119-4716-80a9-3b6a20bc57c9/sv-benchmarks/c/pthread-wmm/safe023_tso.opt.i[949,962] [2021-10-13 00:28:20,194 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-13 00:28:20,229 INFO L208 MainTranslator]: Completed translation [2021-10-13 00:28:20,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20 WrapperNode [2021-10-13 00:28:20,230 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-13 00:28:20,231 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-13 00:28:20,231 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-13 00:28:20,231 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-13 00:28:20,239 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,253 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,274 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-13 00:28:20,275 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-13 00:28:20,275 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-13 00:28:20,275 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-13 00:28:20,282 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,282 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,285 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,285 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,292 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,294 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,296 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,299 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-13 00:28:20,300 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-13 00:28:20,300 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-13 00:28:20,300 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-13 00:28:20,301 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (1/1) ... [2021-10-13 00:28:20,308 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-13 00:28:20,320 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/z3 [2021-10-13 00:28:20,344 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-13 00:28:20,347 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-13 00:28:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-13 00:28:20,380 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-13 00:28:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-13 00:28:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-13 00:28:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-10-13 00:28:20,381 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-10-13 00:28:20,381 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-10-13 00:28:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-10-13 00:28:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-10-13 00:28:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-10-13 00:28:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-13 00:28:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-13 00:28:20,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-13 00:28:20,382 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-13 00:28:20,384 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-13 00:28:20,676 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-13 00:28:20,677 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-10-13 00:28:20,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:28:20 BoogieIcfgContainer [2021-10-13 00:28:20,679 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-13 00:28:20,681 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-13 00:28:20,681 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-13 00:28:20,685 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-13 00:28:20,685 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 12:28:19" (1/3) ... [2021-10-13 00:28:20,686 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb7d28e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:28:20, skipping insertion in model container [2021-10-13 00:28:20,686 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 12:28:20" (2/3) ... [2021-10-13 00:28:20,687 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2fb7d28e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 12:28:20, skipping insertion in model container [2021-10-13 00:28:20,687 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:28:20" (3/3) ... [2021-10-13 00:28:20,688 INFO L111 eAbstractionObserver]: Analyzing ICFG safe023_tso.opt.i [2021-10-13 00:28:20,694 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-13 00:28:20,694 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-13 00:28:20,694 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-13 00:28:20,695 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-13 00:28:20,729 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,730 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,730 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,730 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,731 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,731 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,732 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,733 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,733 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,733 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,734 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,734 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,743 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,744 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,744 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,744 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,745 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,746 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,746 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,746 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,747 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,747 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,747 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,748 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,748 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,749 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,753 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,758 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,759 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,759 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,764 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,765 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,766 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,775 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,775 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,775 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,776 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-13 00:28:20,785 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-13 00:28:20,831 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-13 00:28:20,837 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, mConcurrency=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 [2021-10-13 00:28:20,837 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-13 00:28:20,853 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-13 00:28:20,873 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 92 places, 84 transitions, 183 flow [2021-10-13 00:28:20,876 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 92 places, 84 transitions, 183 flow [2021-10-13 00:28:20,878 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2021-10-13 00:28:20,933 INFO L129 PetriNetUnfolder]: 2/81 cut-off events. [2021-10-13 00:28:20,934 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-13 00:28:20,938 INFO L84 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 47 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2021-10-13 00:28:20,941 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2021-10-13 00:28:23,998 INFO L131 LiptonReduction]: Checked pairs total: 2476 [2021-10-13 00:28:23,998 INFO L133 LiptonReduction]: Total number of compositions: 73 [2021-10-13 00:28:24,007 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 21 transitions, 57 flow [2021-10-13 00:28:24,035 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 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) [2021-10-13 00:28:24,038 INFO L276 IsEmpty]: Start isEmpty. Operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 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) [2021-10-13 00:28:24,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-13 00:28:24,044 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:24,045 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:24,045 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:24,050 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:24,051 INFO L82 PathProgramCache]: Analyzing trace with hash -892154175, now seen corresponding path program 1 times [2021-10-13 00:28:24,059 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:24,060 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [517796461] [2021-10-13 00:28:24,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:24,061 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:24,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:24,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:24,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:24,384 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [517796461] [2021-10-13 00:28:24,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [517796461] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:24,385 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:24,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-13 00:28:24,387 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405973067] [2021-10-13 00:28:24,405 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-13 00:28:24,405 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:24,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-13 00:28:24,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:28:24,429 INFO L87 Difference]: Start difference. First operand has 234 states, 233 states have (on average 2.815450643776824) internal successors, (656), 233 states have internal predecessors, (656), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) 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) [2021-10-13 00:28:24,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:24,473 INFO L93 Difference]: Finished difference Result 383 states and 1008 transitions. [2021-10-13 00:28:24,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-13 00:28:24,475 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) 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 [2021-10-13 00:28:24,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:24,489 INFO L225 Difference]: With dead ends: 383 [2021-10-13 00:28:24,489 INFO L226 Difference]: Without dead ends: 317 [2021-10-13 00:28:24,490 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-13 00:28:24,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2021-10-13 00:28:24,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 272. [2021-10-13 00:28:24,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272 states, 271 states have (on average 2.5276752767527677) internal successors, (685), 271 states have internal predecessors, (685), 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) [2021-10-13 00:28:24,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272 states to 272 states and 685 transitions. [2021-10-13 00:28:24,561 INFO L78 Accepts]: Start accepts. Automaton has 272 states and 685 transitions. Word has length 8 [2021-10-13 00:28:24,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:24,562 INFO L470 AbstractCegarLoop]: Abstraction has 272 states and 685 transitions. [2021-10-13 00:28:24,562 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) 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) [2021-10-13 00:28:24,562 INFO L276 IsEmpty]: Start isEmpty. Operand 272 states and 685 transitions. [2021-10-13 00:28:24,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:28:24,564 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:24,564 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:24,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-13 00:28:24,565 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:24,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:24,566 INFO L82 PathProgramCache]: Analyzing trace with hash -1887016027, now seen corresponding path program 1 times [2021-10-13 00:28:24,566 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:24,567 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720674146] [2021-10-13 00:28:24,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:24,567 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:24,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:24,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:24,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:24,678 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720674146] [2021-10-13 00:28:24,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720674146] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:24,679 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:24,679 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:28:24,679 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674874376] [2021-10-13 00:28:24,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:28:24,681 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:24,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:28:24,682 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:24,682 INFO L87 Difference]: Start difference. First operand 272 states and 685 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 00:28:24,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:24,725 INFO L93 Difference]: Finished difference Result 329 states and 782 transitions. [2021-10-13 00:28:24,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:28:24,726 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-10-13 00:28:24,726 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:24,730 INFO L225 Difference]: With dead ends: 329 [2021-10-13 00:28:24,730 INFO L226 Difference]: Without dead ends: 305 [2021-10-13 00:28:24,731 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.7ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:28:24,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2021-10-13 00:28:24,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 254. [2021-10-13 00:28:24,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 254 states, 253 states have (on average 2.4466403162055337) internal successors, (619), 253 states have internal predecessors, (619), 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) [2021-10-13 00:28:24,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 619 transitions. [2021-10-13 00:28:24,753 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 619 transitions. Word has length 9 [2021-10-13 00:28:24,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:24,754 INFO L470 AbstractCegarLoop]: Abstraction has 254 states and 619 transitions. [2021-10-13 00:28:24,754 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 00:28:24,754 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 619 transitions. [2021-10-13 00:28:24,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2021-10-13 00:28:24,756 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:24,756 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:24,756 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-13 00:28:24,757 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:24,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:24,758 INFO L82 PathProgramCache]: Analyzing trace with hash -1887028520, now seen corresponding path program 1 times [2021-10-13 00:28:24,758 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:24,758 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091297125] [2021-10-13 00:28:24,758 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:24,759 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:24,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:24,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:24,867 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:24,867 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091297125] [2021-10-13 00:28:24,867 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091297125] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:24,868 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:24,868 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:28:24,868 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550023812] [2021-10-13 00:28:24,868 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:28:24,869 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:24,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:28:24,870 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:24,870 INFO L87 Difference]: Start difference. First operand 254 states and 619 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 00:28:24,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:24,898 INFO L93 Difference]: Finished difference Result 281 states and 664 transitions. [2021-10-13 00:28:24,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:28:24,901 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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 9 [2021-10-13 00:28:24,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:24,905 INFO L225 Difference]: With dead ends: 281 [2021-10-13 00:28:24,905 INFO L226 Difference]: Without dead ends: 281 [2021-10-13 00:28:24,906 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.4ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:24,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2021-10-13 00:28:24,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 206. [2021-10-13 00:28:24,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 206 states, 205 states have (on average 2.395121951219512) internal successors, (491), 205 states have internal predecessors, (491), 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) [2021-10-13 00:28:24,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206 states to 206 states and 491 transitions. [2021-10-13 00:28:24,938 INFO L78 Accepts]: Start accepts. Automaton has 206 states and 491 transitions. Word has length 9 [2021-10-13 00:28:24,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:24,938 INFO L470 AbstractCegarLoop]: Abstraction has 206 states and 491 transitions. [2021-10-13 00:28:24,938 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 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) [2021-10-13 00:28:24,938 INFO L276 IsEmpty]: Start isEmpty. Operand 206 states and 491 transitions. [2021-10-13 00:28:24,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-13 00:28:24,940 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:24,940 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:24,940 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-13 00:28:24,940 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:24,941 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:24,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1631992436, now seen corresponding path program 1 times [2021-10-13 00:28:24,941 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:24,941 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1737818771] [2021-10-13 00:28:24,941 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:24,942 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:24,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:25,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:25,065 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:25,066 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1737818771] [2021-10-13 00:28:25,066 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1737818771] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:25,066 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:25,066 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:28:25,066 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180927808] [2021-10-13 00:28:25,067 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:28:25,067 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:25,068 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:28:25,068 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:25,068 INFO L87 Difference]: Start difference. First operand 206 states and 491 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-13 00:28:25,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:25,087 INFO L93 Difference]: Finished difference Result 228 states and 517 transitions. [2021-10-13 00:28:25,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:28:25,088 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2021-10-13 00:28:25,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:25,090 INFO L225 Difference]: With dead ends: 228 [2021-10-13 00:28:25,093 INFO L226 Difference]: Without dead ends: 192 [2021-10-13 00:28:25,094 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 14.6ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:25,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 192 states. [2021-10-13 00:28:25,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 192 to 152. [2021-10-13 00:28:25,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 151 states have (on average 2.3642384105960264) internal successors, (357), 151 states have internal predecessors, (357), 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) [2021-10-13 00:28:25,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 357 transitions. [2021-10-13 00:28:25,107 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 357 transitions. Word has length 10 [2021-10-13 00:28:25,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:25,108 INFO L470 AbstractCegarLoop]: Abstraction has 152 states and 357 transitions. [2021-10-13 00:28:25,115 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 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) [2021-10-13 00:28:25,115 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 357 transitions. [2021-10-13 00:28:25,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-13 00:28:25,120 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:25,120 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:25,120 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-13 00:28:25,120 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:25,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:25,121 INFO L82 PathProgramCache]: Analyzing trace with hash 730984259, now seen corresponding path program 1 times [2021-10-13 00:28:25,121 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:25,121 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1268731571] [2021-10-13 00:28:25,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:25,122 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:25,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:25,224 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:25,224 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1268731571] [2021-10-13 00:28:25,224 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1268731571] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:25,224 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:25,225 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:28:25,225 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650700411] [2021-10-13 00:28:25,225 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:28:25,225 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:25,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:28:25,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:28:25,227 INFO L87 Difference]: Start difference. First operand 152 states and 357 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-10-13 00:28:25,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:25,255 INFO L93 Difference]: Finished difference Result 154 states and 342 transitions. [2021-10-13 00:28:25,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:28:25,255 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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 [2021-10-13 00:28:25,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:25,256 INFO L225 Difference]: With dead ends: 154 [2021-10-13 00:28:25,257 INFO L226 Difference]: Without dead ends: 94 [2021-10-13 00:28:25,257 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 16.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:28:25,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-10-13 00:28:25,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 94. [2021-10-13 00:28:25,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 93 states have (on average 2.193548387096774) internal successors, (204), 93 states have internal predecessors, (204), 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) [2021-10-13 00:28:25,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 204 transitions. [2021-10-13 00:28:25,262 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 204 transitions. Word has length 12 [2021-10-13 00:28:25,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:25,262 INFO L470 AbstractCegarLoop]: Abstraction has 94 states and 204 transitions. [2021-10-13 00:28:25,262 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 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) [2021-10-13 00:28:25,262 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 204 transitions. [2021-10-13 00:28:25,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 00:28:25,266 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:25,266 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:25,266 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-13 00:28:25,267 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:25,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:25,268 INFO L82 PathProgramCache]: Analyzing trace with hash 516036299, now seen corresponding path program 1 times [2021-10-13 00:28:25,268 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:25,269 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [682526553] [2021-10-13 00:28:25,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:25,269 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:25,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:25,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:25,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:25,357 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [682526553] [2021-10-13 00:28:25,357 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [682526553] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:25,358 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:25,358 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:28:25,358 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313898677] [2021-10-13 00:28:25,358 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:28:25,359 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:25,363 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:28:25,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:25,364 INFO L87 Difference]: Start difference. First operand 94 states and 204 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2021-10-13 00:28:25,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:25,387 INFO L93 Difference]: Finished difference Result 162 states and 353 transitions. [2021-10-13 00:28:25,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-13 00:28:25,387 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 [2021-10-13 00:28:25,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:25,389 INFO L225 Difference]: With dead ends: 162 [2021-10-13 00:28:25,389 INFO L226 Difference]: Without dead ends: 106 [2021-10-13 00:28:25,389 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.0ms TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:25,390 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2021-10-13 00:28:25,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 82. [2021-10-13 00:28:25,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 81 states have (on average 2.111111111111111) internal successors, (171), 81 states have internal predecessors, (171), 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) [2021-10-13 00:28:25,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 171 transitions. [2021-10-13 00:28:25,394 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 171 transitions. Word has length 13 [2021-10-13 00:28:25,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:25,395 INFO L470 AbstractCegarLoop]: Abstraction has 82 states and 171 transitions. [2021-10-13 00:28:25,395 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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) [2021-10-13 00:28:25,395 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 171 transitions. [2021-10-13 00:28:25,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2021-10-13 00:28:25,396 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:25,396 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:25,396 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-13 00:28:25,397 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:25,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:25,399 INFO L82 PathProgramCache]: Analyzing trace with hash -1567407223, now seen corresponding path program 2 times [2021-10-13 00:28:25,399 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:25,400 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1612354454] [2021-10-13 00:28:25,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:25,401 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:25,495 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:25,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:25,496 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1612354454] [2021-10-13 00:28:25,496 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1612354454] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:25,496 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:25,497 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-13 00:28:25,497 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589258942] [2021-10-13 00:28:25,498 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-13 00:28:25,498 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:25,498 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-13 00:28:25,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-13 00:28:25,499 INFO L87 Difference]: Start difference. First operand 82 states and 171 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-13 00:28:25,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:25,544 INFO L93 Difference]: Finished difference Result 88 states and 172 transitions. [2021-10-13 00:28:25,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-13 00:28:25,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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 [2021-10-13 00:28:25,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:25,546 INFO L225 Difference]: With dead ends: 88 [2021-10-13 00:28:25,546 INFO L226 Difference]: Without dead ends: 71 [2021-10-13 00:28:25,546 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 28.5ms TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:28:25,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2021-10-13 00:28:25,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2021-10-13 00:28:25,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 70 states have (on average 1.9714285714285715) internal successors, (138), 70 states have internal predecessors, (138), 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) [2021-10-13 00:28:25,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 138 transitions. [2021-10-13 00:28:25,550 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 138 transitions. Word has length 13 [2021-10-13 00:28:25,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:25,551 INFO L470 AbstractCegarLoop]: Abstraction has 71 states and 138 transitions. [2021-10-13 00:28:25,551 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 3 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) [2021-10-13 00:28:25,551 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 138 transitions. [2021-10-13 00:28:25,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-13 00:28:25,551 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:25,552 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:25,552 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-10-13 00:28:25,552 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:25,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:25,553 INFO L82 PathProgramCache]: Analyzing trace with hash 1544054034, now seen corresponding path program 1 times [2021-10-13 00:28:25,553 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:25,553 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476043312] [2021-10-13 00:28:25,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:25,553 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:25,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:25,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:25,605 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:25,605 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476043312] [2021-10-13 00:28:25,605 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476043312] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:25,605 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:25,605 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-13 00:28:25,606 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859053994] [2021-10-13 00:28:25,606 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-13 00:28:25,606 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:25,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-13 00:28:25,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-13 00:28:25,607 INFO L87 Difference]: Start difference. First operand 71 states and 138 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-13 00:28:25,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:25,633 INFO L93 Difference]: Finished difference Result 67 states and 127 transitions. [2021-10-13 00:28:25,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:28:25,634 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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 [2021-10-13 00:28:25,634 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:25,634 INFO L225 Difference]: With dead ends: 67 [2021-10-13 00:28:25,634 INFO L226 Difference]: Without dead ends: 58 [2021-10-13 00:28:25,635 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 13.9ms TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:28:25,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2021-10-13 00:28:25,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2021-10-13 00:28:25,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 57 states have (on average 1.9298245614035088) internal successors, (110), 57 states have internal predecessors, (110), 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) [2021-10-13 00:28:25,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 110 transitions. [2021-10-13 00:28:25,638 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 110 transitions. Word has length 14 [2021-10-13 00:28:25,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:25,638 INFO L470 AbstractCegarLoop]: Abstraction has 58 states and 110 transitions. [2021-10-13 00:28:25,639 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 4 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) [2021-10-13 00:28:25,639 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 110 transitions. [2021-10-13 00:28:25,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-13 00:28:25,639 INFO L504 BasicCegarLoop]: Found error trace [2021-10-13 00:28:25,639 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-13 00:28:25,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-10-13 00:28:25,640 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-13 00:28:25,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-13 00:28:25,640 INFO L82 PathProgramCache]: Analyzing trace with hash 621018445, now seen corresponding path program 1 times [2021-10-13 00:28:25,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-13 00:28:25,641 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439362977] [2021-10-13 00:28:25,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-13 00:28:25,641 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-13 00:28:25,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-13 00:28:25,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-13 00:28:25,699 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-13 00:28:25,700 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439362977] [2021-10-13 00:28:25,700 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439362977] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-13 00:28:25,700 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-13 00:28:25,700 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-13 00:28:25,701 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455885387] [2021-10-13 00:28:25,701 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-13 00:28:25,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-13 00:28:25,702 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-13 00:28:25,703 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2021-10-13 00:28:25,703 INFO L87 Difference]: Start difference. First operand 58 states and 110 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-10-13 00:28:25,724 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-13 00:28:25,725 INFO L93 Difference]: Finished difference Result 55 states and 107 transitions. [2021-10-13 00:28:25,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-13 00:28:25,725 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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 [2021-10-13 00:28:25,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-13 00:28:25,726 INFO L225 Difference]: With dead ends: 55 [2021-10-13 00:28:25,726 INFO L226 Difference]: Without dead ends: 0 [2021-10-13 00:28:25,726 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 20.1ms TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-10-13 00:28:25,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-10-13 00:28:25,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-10-13 00:28:25,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 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) [2021-10-13 00:28:25,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-10-13 00:28:25,727 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2021-10-13 00:28:25,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-13 00:28:25,727 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-10-13 00:28:25,728 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 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) [2021-10-13 00:28:25,728 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-10-13 00:28:25,728 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-10-13 00:28:25,730 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-13 00:28:25,731 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-13 00:28:25,731 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-13 00:28:25,731 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-13 00:28:25,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-10-13 00:28:25,735 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-13 00:28:25,735 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-13 00:28:25,737 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 12:28:25 BasicIcfg [2021-10-13 00:28:25,737 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-13 00:28:25,738 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-13 00:28:25,738 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-13 00:28:25,738 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-13 00:28:25,739 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 12:28:20" (3/4) ... [2021-10-13 00:28:25,741 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-13 00:28:25,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2021-10-13 00:28:25,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2021-10-13 00:28:25,748 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2021-10-13 00:28:25,756 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2021-10-13 00:28:25,756 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2021-10-13 00:28:25,756 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:28:25,757 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-13 00:28:25,799 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/witness.graphml [2021-10-13 00:28:25,799 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-13 00:28:25,800 INFO L168 Benchmark]: Toolchain (without parser) took 6113.57 ms. Allocated memory was 94.4 MB in the beginning and 146.8 MB in the end (delta: 52.4 MB). Free memory was 60.2 MB in the beginning and 94.3 MB in the end (delta: -34.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:25,801 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory was 49.4 MB in the beginning and 49.3 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:28:25,801 INFO L168 Benchmark]: CACSL2BoogieTranslator took 542.90 ms. Allocated memory is still 94.4 MB. Free memory was 60.0 MB in the beginning and 61.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:25,802 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 94.4 MB. Free memory was 61.1 MB in the beginning and 59.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:25,802 INFO L168 Benchmark]: Boogie Preprocessor took 23.84 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 57.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-13 00:28:25,802 INFO L168 Benchmark]: RCFGBuilder took 379.62 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 57.7 MB in the beginning and 97.9 MB in the end (delta: -40.3 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:25,803 INFO L168 Benchmark]: TraceAbstraction took 5056.29 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 97.1 MB in the beginning and 97.4 MB in the end (delta: -384.6 kB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:25,803 INFO L168 Benchmark]: Witness Printer took 60.91 ms. Allocated memory is still 146.8 MB. Free memory was 97.4 MB in the beginning and 94.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-13 00:28:25,805 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 94.4 MB. Free memory was 49.4 MB in the beginning and 49.3 MB in the end (delta: 43.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 542.90 ms. Allocated memory is still 94.4 MB. Free memory was 60.0 MB in the beginning and 61.1 MB in the end (delta: -1.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 43.54 ms. Allocated memory is still 94.4 MB. Free memory was 61.1 MB in the beginning and 59.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 23.84 ms. Allocated memory is still 94.4 MB. Free memory was 59.1 MB in the beginning and 57.7 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 379.62 ms. Allocated memory was 94.4 MB in the beginning and 121.6 MB in the end (delta: 27.3 MB). Free memory was 57.7 MB in the beginning and 97.9 MB in the end (delta: -40.3 MB). Peak memory consumption was 17.0 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5056.29 ms. Allocated memory was 121.6 MB in the beginning and 146.8 MB in the end (delta: 25.2 MB). Free memory was 97.1 MB in the beginning and 97.4 MB in the end (delta: -384.6 kB). Peak memory consumption was 24.6 MB. Max. memory is 16.1 GB. * Witness Printer took 60.91 ms. Allocated memory is still 146.8 MB. Free memory was 97.4 MB in the beginning and 94.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 3123.0ms, 92 PlacesBefore, 31 PlacesAfterwards, 84 TransitionsBefore, 21 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 45 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 73 TotalNumberOfCompositions, 2476 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1521, positive: 1440, positive conditional: 0, positive unconditional: 1440, negative: 81, negative conditional: 0, negative unconditional: 81, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1033, positive: 982, positive conditional: 0, positive unconditional: 982, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1033, positive: 967, positive conditional: 0, positive unconditional: 967, negative: 66, negative conditional: 0, negative unconditional: 66, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 66, positive: 15, positive conditional: 0, positive unconditional: 15, negative: 51, negative conditional: 0, negative unconditional: 51, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 203, positive: 66, positive conditional: 0, positive unconditional: 66, negative: 137, negative conditional: 0, negative unconditional: 137, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1521, positive: 458, positive conditional: 0, positive unconditional: 458, negative: 30, negative conditional: 0, negative unconditional: 30, unknown: 1033, unknown conditional: 0, unknown unconditional: 1033] , Statistics on independence cache: Total cache size (in pairs): 89, Positive cache size: 72, Positive conditional cache size: 0, Positive unconditional cache size: 72, Negative cache size: 17, Negative conditional cache size: 0, Negative unconditional cache size: 17 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 107 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 4905.8ms, OverallIterations: 9, TraceHistogramMax: 1, EmptinessCheckTime: 23.2ms, AutomataDifference: 361.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 3198.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 157 SDtfs, 210 SDslu, 175 SDs, 0 SdLazy, 89 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 121.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 27 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 142.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=272occurred in iteration=1, InterpolantAutomatonStates: 42, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 142.3ms AutomataMinimizationTime, 9 MinimizatonAttempts, 235 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 42.3ms SsaConstructionTime, 224.3ms SatisfiabilityAnalysisTime, 650.8ms InterpolantComputationTime, 103 NumberOfCodeBlocks, 103 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 94 ConstructedInterpolants, 0 QuantifiedInterpolants, 506 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-13 00:28:25,857 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_a3298f00-d119-4716-80a9-3b6a20bc57c9/bin/uautomizer-WNIpwEf4Nt/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...