./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-divine/condvar.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b2eff8ba Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-divine/condvar.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg --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 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a .............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.1-dev-b2eff8b [2021-10-28 08:35:11,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 08:35:11,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 08:35:11,366 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 08:35:11,367 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 08:35:11,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 08:35:11,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 08:35:11,380 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 08:35:11,383 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 08:35:11,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 08:35:11,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 08:35:11,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 08:35:11,396 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 08:35:11,399 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 08:35:11,402 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 08:35:11,409 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 08:35:11,410 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 08:35:11,411 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 08:35:11,414 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 08:35:11,424 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 08:35:11,427 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 08:35:11,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 08:35:11,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 08:35:11,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 08:35:11,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 08:35:11,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 08:35:11,446 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 08:35:11,448 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 08:35:11,449 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 08:35:11,451 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 08:35:11,451 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 08:35:11,452 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 08:35:11,455 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 08:35:11,456 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 08:35:11,458 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 08:35:11,459 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 08:35:11,460 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 08:35:11,460 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 08:35:11,460 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 08:35:11,461 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 08:35:11,462 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 08:35:11,463 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 08:35:11,519 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 08:35:11,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 08:35:11,520 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 08:35:11,520 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 08:35:11,522 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 08:35:11,522 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 08:35:11,522 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 08:35:11,523 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 08:35:11,523 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 08:35:11,523 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 08:35:11,525 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 08:35:11,525 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 08:35:11,525 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 08:35:11,526 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 08:35:11,526 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 08:35:11,526 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 08:35:11,526 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 08:35:11,527 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 08:35:11,527 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 08:35:11,527 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 08:35:11,527 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 08:35:11,528 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 08:35:11,528 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:35:11,528 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 08:35:11,528 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 08:35:11,529 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 08:35:11,529 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 08:35:11,529 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 08:35:11,529 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 08:35:11,530 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 08:35:11,530 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 08:35:11,530 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 08:35:11,531 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_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 08550a9d023a2de1ac334a3445fa7327c26092d061f764efe50453540d837a7a [2021-10-28 08:35:11,911 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 08:35:11,954 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 08:35:11,956 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 08:35:11,958 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 08:35:11,959 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 08:35:11,960 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/pthread-divine/condvar.i [2021-10-28 08:35:12,039 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/data/532819a0e/66a827df1b4c486da6b73ce00fe93389/FLAG797f7641e [2021-10-28 08:35:12,710 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 08:35:12,711 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/sv-benchmarks/c/pthread-divine/condvar.i [2021-10-28 08:35:12,731 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/data/532819a0e/66a827df1b4c486da6b73ce00fe93389/FLAG797f7641e [2021-10-28 08:35:12,984 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/data/532819a0e/66a827df1b4c486da6b73ce00fe93389 [2021-10-28 08:35:12,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 08:35:12,998 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 08:35:13,014 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:13,014 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 08:35:13,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 08:35:13,017 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:12" (1/1) ... [2021-10-28 08:35:13,018 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3dc13824 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13, skipping insertion in model container [2021-10-28 08:35:13,018 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 08:35:12" (1/1) ... [2021-10-28 08:35:13,025 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 08:35:13,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 08:35:13,242 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-28 08:35:13,436 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_c3c38c37-c316-4b6e-b237-c8cee751a74c/sv-benchmarks/c/pthread-divine/condvar.i[30458,30471] [2021-10-28 08:35:13,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:13,460 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 08:35:13,475 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-28 08:35:13,501 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_c3c38c37-c316-4b6e-b237-c8cee751a74c/sv-benchmarks/c/pthread-divine/condvar.i[30458,30471] [2021-10-28 08:35:13,504 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 08:35:13,552 INFO L208 MainTranslator]: Completed translation [2021-10-28 08:35:13,552 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13 WrapperNode [2021-10-28 08:35:13,553 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 08:35:13,554 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:13,554 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 08:35:13,554 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 08:35:13,562 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,577 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,600 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 08:35:13,601 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 08:35:13,601 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 08:35:13,602 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 08:35:13,610 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,610 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,614 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,614 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,621 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,625 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,627 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,630 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 08:35:13,631 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 08:35:13,631 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 08:35:13,631 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 08:35:13,634 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (1/1) ... [2021-10-28 08:35:13,646 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 08:35:13,659 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:13,680 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 08:35:13,696 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 08:35:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-28 08:35:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 08:35:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-28 08:35:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 08:35:13,725 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 08:35:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 08:35:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2021-10-28 08:35:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2021-10-28 08:35:13,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 08:35:13,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 08:35:13,728 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-28 08:35:14,057 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 08:35:14,058 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 08:35:14,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:14 BoogieIcfgContainer [2021-10-28 08:35:14,060 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 08:35:14,078 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 08:35:14,078 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 08:35:14,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 08:35:14,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 08:35:12" (1/3) ... [2021-10-28 08:35:14,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dc5445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:35:14, skipping insertion in model container [2021-10-28 08:35:14,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 08:35:13" (2/3) ... [2021-10-28 08:35:14,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@77dc5445 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 08:35:14, skipping insertion in model container [2021-10-28 08:35:14,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:14" (3/3) ... [2021-10-28 08:35:14,091 INFO L111 eAbstractionObserver]: Analyzing ICFG condvar.i [2021-10-28 08:35:14,108 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 08:35:14,108 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 08:35:14,108 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 08:35:14,108 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 08:35:14,171 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,172 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,172 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,172 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,173 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,173 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,173 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,173 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,178 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,178 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,179 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,179 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,180 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,180 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,181 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,181 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,181 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,181 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,182 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,182 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,185 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,186 WARN L313 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,186 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,186 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,186 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#t~nondet6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,187 WARN L313 ript$VariableManager]: TermVariabe |threadThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 08:35:14,213 INFO L148 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-10-28 08:35:14,272 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 08:35:14,280 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-28 08:35:14,281 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-28 08:35:14,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 71 places, 72 transitions, 152 flow [2021-10-28 08:35:14,337 INFO L129 PetriNetUnfolder]: 5/71 cut-off events. [2021-10-28 08:35:14,337 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-28 08:35:14,341 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 71 events. 5/71 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 61 event pairs, 0 based on Foata normal form. 0/65 useless extension candidates. Maximal degree in co-relation 28. Up to 2 conditions per place. [2021-10-28 08:35:14,341 INFO L82 GeneralOperation]: Start removeDead. Operand has 71 places, 72 transitions, 152 flow [2021-10-28 08:35:14,347 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 64 places, 65 transitions, 133 flow [2021-10-28 08:35:14,396 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2021-10-28 08:35:14,396 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 08:35:14,396 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:35:14,397 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:14,397 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:35:14,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:14,422 INFO L85 PathProgramCache]: Analyzing trace with hash 133895092, now seen corresponding path program 1 times [2021-10-28 08:35:14,432 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:14,438 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61341664] [2021-10-28 08:35:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:14,439 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:14,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:14,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:14,790 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:14,791 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61341664] [2021-10-28 08:35:14,791 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61341664] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:14,792 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:14,792 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:35:14,794 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337878339] [2021-10-28 08:35:14,807 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:35:14,807 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:14,822 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:35:14,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:35:14,832 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 65 out of 72 [2021-10-28 08:35:14,837 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 64 places, 65 transitions, 133 flow. Second operand has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-10-28 08:35:14,837 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:35:14,837 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 65 of 72 [2021-10-28 08:35:14,839 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:35:14,899 INFO L129 PetriNetUnfolder]: 3/65 cut-off events. [2021-10-28 08:35:14,902 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 08:35:14,904 INFO L84 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 65 events. 3/65 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 45 event pairs, 0 based on Foata normal form. 3/64 useless extension candidates. Maximal degree in co-relation 33. Up to 5 conditions per place. [2021-10-28 08:35:14,906 INFO L132 encePairwiseOnDemand]: 66/72 looper letters, 3 selfloop transitions, 2 changer transitions 4/63 dead transitions. [2021-10-28 08:35:14,907 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 63 transitions, 139 flow [2021-10-28 08:35:14,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:35:14,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 08:35:14,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 205 transitions. [2021-10-28 08:35:14,926 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9490740740740741 [2021-10-28 08:35:14,927 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 205 transitions. [2021-10-28 08:35:14,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 205 transitions. [2021-10-28 08:35:14,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:14,933 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 205 transitions. [2021-10-28 08:35:14,941 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 68.33333333333333) internal successors, (205), 3 states have internal predecessors, (205), 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) [2021-10-28 08:35:14,949 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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) [2021-10-28 08:35:14,950 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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) [2021-10-28 08:35:14,952 INFO L186 Difference]: Start difference. First operand has 64 places, 65 transitions, 133 flow. Second operand 3 states and 205 transitions. [2021-10-28 08:35:14,954 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 63 transitions, 139 flow [2021-10-28 08:35:14,961 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 65 places, 63 transitions, 138 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 08:35:14,968 INFO L242 Difference]: Finished difference. Result has 66 places, 58 transitions, 126 flow [2021-10-28 08:35:14,970 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=60, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=126, PETRI_PLACES=66, PETRI_TRANSITIONS=58} [2021-10-28 08:35:14,971 INFO L334 CegarLoopForPetriNet]: 64 programPoint places, 2 predicate places. [2021-10-28 08:35:14,972 INFO L470 AbstractCegarLoop]: Abstraction has has 66 places, 58 transitions, 126 flow [2021-10-28 08:35:14,973 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 65.66666666666667) internal successors, (197), 3 states have internal predecessors, (197), 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) [2021-10-28 08:35:14,974 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:35:14,978 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:14,978 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 08:35:14,979 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:35:14,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:14,980 INFO L85 PathProgramCache]: Analyzing trace with hash 2142512111, now seen corresponding path program 1 times [2021-10-28 08:35:14,981 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:14,982 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [337934343] [2021-10-28 08:35:14,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:14,983 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:15,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:15,105 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:15,105 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:15,106 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [337934343] [2021-10-28 08:35:15,106 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [337934343] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:15,106 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 08:35:15,106 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 08:35:15,107 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269137203] [2021-10-28 08:35:15,109 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 08:35:15,109 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:15,110 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 08:35:15,111 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 08:35:15,113 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 62 out of 72 [2021-10-28 08:35:15,113 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 66 places, 58 transitions, 126 flow. Second operand has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2021-10-28 08:35:15,114 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:35:15,114 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 62 of 72 [2021-10-28 08:35:15,114 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:35:15,170 INFO L129 PetriNetUnfolder]: 2/62 cut-off events. [2021-10-28 08:35:15,170 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2021-10-28 08:35:15,172 INFO L84 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 62 events. 2/62 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 0/61 useless extension candidates. Maximal degree in co-relation 40. Up to 8 conditions per place. [2021-10-28 08:35:15,173 INFO L132 encePairwiseOnDemand]: 69/72 looper letters, 9 selfloop transitions, 2 changer transitions 0/62 dead transitions. [2021-10-28 08:35:15,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 64 places, 62 transitions, 156 flow [2021-10-28 08:35:15,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 08:35:15,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 08:35:15,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 198 transitions. [2021-10-28 08:35:15,181 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9166666666666666 [2021-10-28 08:35:15,181 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 198 transitions. [2021-10-28 08:35:15,182 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 198 transitions. [2021-10-28 08:35:15,182 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:15,183 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 198 transitions. [2021-10-28 08:35:15,185 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 66.0) internal successors, (198), 3 states have internal predecessors, (198), 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) [2021-10-28 08:35:15,189 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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) [2021-10-28 08:35:15,189 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 72.0) internal successors, (288), 4 states have internal predecessors, (288), 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) [2021-10-28 08:35:15,189 INFO L186 Difference]: Start difference. First operand has 66 places, 58 transitions, 126 flow. Second operand 3 states and 198 transitions. [2021-10-28 08:35:15,190 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 64 places, 62 transitions, 156 flow [2021-10-28 08:35:15,191 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 62 transitions, 152 flow, removed 0 selfloop flow, removed 2 redundant places. [2021-10-28 08:35:15,193 INFO L242 Difference]: Finished difference. Result has 63 places, 59 transitions, 134 flow [2021-10-28 08:35:15,193 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=122, PETRI_DIFFERENCE_MINUEND_PLACES=60, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=58, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=56, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=134, PETRI_PLACES=63, PETRI_TRANSITIONS=59} [2021-10-28 08:35:15,194 INFO L334 CegarLoopForPetriNet]: 64 programPoint places, -1 predicate places. [2021-10-28 08:35:15,194 INFO L470 AbstractCegarLoop]: Abstraction has has 63 places, 59 transitions, 134 flow [2021-10-28 08:35:15,195 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 63.0) internal successors, (189), 3 states have internal predecessors, (189), 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) [2021-10-28 08:35:15,195 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:35:15,196 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:15,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 08:35:15,197 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:35:15,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:15,197 INFO L85 PathProgramCache]: Analyzing trace with hash 2079056758, now seen corresponding path program 1 times [2021-10-28 08:35:15,198 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:15,199 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1217008899] [2021-10-28 08:35:15,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:15,200 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:15,366 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:15,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:15,366 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1217008899] [2021-10-28 08:35:15,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1217008899] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:15,367 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20431381] [2021-10-28 08:35:15,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:15,368 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:15,368 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:15,386 INFO L229 MonitoredProcess]: Starting monitored process 2 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:15,410 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-10-28 08:35:15,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:15,483 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 4 conjunts are in the unsatisfiable core [2021-10-28 08:35:15,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:15,782 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:15,782 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20431381] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:15,783 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:35:15,783 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-10-28 08:35:15,783 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767585398] [2021-10-28 08:35:15,784 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:35:15,784 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:15,785 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:35:15,785 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-10-28 08:35:15,786 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 72 [2021-10-28 08:35:15,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 59 transitions, 134 flow. Second operand has 7 states, 7 states have (on average 62.857142857142854) internal successors, (440), 7 states have internal predecessors, (440), 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) [2021-10-28 08:35:15,788 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:35:15,788 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 72 [2021-10-28 08:35:15,788 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:35:15,849 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2021-10-28 08:35:15,849 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2021-10-28 08:35:15,850 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 67 events. 2/67 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 21 event pairs, 0 based on Foata normal form. 1/68 useless extension candidates. Maximal degree in co-relation 54. Up to 9 conditions per place. [2021-10-28 08:35:15,851 INFO L132 encePairwiseOnDemand]: 67/72 looper letters, 12 selfloop transitions, 5 changer transitions 0/67 dead transitions. [2021-10-28 08:35:15,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 68 places, 67 transitions, 186 flow [2021-10-28 08:35:15,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-28 08:35:15,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2021-10-28 08:35:15,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 384 transitions. [2021-10-28 08:35:15,853 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8888888888888888 [2021-10-28 08:35:15,854 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 384 transitions. [2021-10-28 08:35:15,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 384 transitions. [2021-10-28 08:35:15,854 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:15,854 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 384 transitions. [2021-10-28 08:35:15,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 64.0) internal successors, (384), 6 states have internal predecessors, (384), 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) [2021-10-28 08:35:15,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2021-10-28 08:35:15,858 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 72.0) internal successors, (504), 7 states have internal predecessors, (504), 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) [2021-10-28 08:35:15,859 INFO L186 Difference]: Start difference. First operand has 63 places, 59 transitions, 134 flow. Second operand 6 states and 384 transitions. [2021-10-28 08:35:15,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 68 places, 67 transitions, 186 flow [2021-10-28 08:35:15,860 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 67 places, 67 transitions, 184 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 08:35:15,862 INFO L242 Difference]: Finished difference. Result has 70 places, 62 transitions, 164 flow [2021-10-28 08:35:15,862 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=132, PETRI_DIFFERENCE_MINUEND_PLACES=62, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=164, PETRI_PLACES=70, PETRI_TRANSITIONS=62} [2021-10-28 08:35:15,863 INFO L334 CegarLoopForPetriNet]: 64 programPoint places, 6 predicate places. [2021-10-28 08:35:15,863 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 62 transitions, 164 flow [2021-10-28 08:35:15,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 62.857142857142854) internal successors, (440), 7 states have internal predecessors, (440), 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) [2021-10-28 08:35:15,863 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:35:15,864 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:15,903 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-10-28 08:35:16,081 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2021-10-28 08:35:16,081 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:35:16,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:16,082 INFO L85 PathProgramCache]: Analyzing trace with hash -1880794769, now seen corresponding path program 2 times [2021-10-28 08:35:16,083 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:16,083 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [609924223] [2021-10-28 08:35:16,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:16,083 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:16,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:16,206 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:16,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:16,211 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [609924223] [2021-10-28 08:35:16,215 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [609924223] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:16,216 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [647254128] [2021-10-28 08:35:16,216 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-28 08:35:16,216 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:16,216 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:16,217 INFO L229 MonitoredProcess]: Starting monitored process 3 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:16,233 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-28 08:35:16,327 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-28 08:35:16,328 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:35:16,330 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-28 08:35:16,332 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:16,563 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:16,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [647254128] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:16,564 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-28 08:35:16,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-10-28 08:35:16,564 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308636445] [2021-10-28 08:35:16,566 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-28 08:35:16,566 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:16,567 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-28 08:35:16,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-10-28 08:35:16,572 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 61 out of 72 [2021-10-28 08:35:16,573 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 62 transitions, 164 flow. Second operand has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 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) [2021-10-28 08:35:16,573 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:35:16,574 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 61 of 72 [2021-10-28 08:35:16,574 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:35:16,688 INFO L129 PetriNetUnfolder]: 2/72 cut-off events. [2021-10-28 08:35:16,690 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-10-28 08:35:16,691 INFO L84 FinitePrefix]: Finished finitePrefix Result has 128 conditions, 72 events. 2/72 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 1/73 useless extension candidates. Maximal degree in co-relation 80. Up to 9 conditions per place. [2021-10-28 08:35:16,692 INFO L132 encePairwiseOnDemand]: 67/72 looper letters, 14 selfloop transitions, 8 changer transitions 0/72 dead transitions. [2021-10-28 08:35:16,693 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 72 transitions, 238 flow [2021-10-28 08:35:16,693 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:35:16,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 08:35:16,695 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 572 transitions. [2021-10-28 08:35:16,696 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2021-10-28 08:35:16,696 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 572 transitions. [2021-10-28 08:35:16,697 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 572 transitions. [2021-10-28 08:35:16,697 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:16,697 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 572 transitions. [2021-10-28 08:35:16,700 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 63.55555555555556) internal successors, (572), 9 states have internal predecessors, (572), 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) [2021-10-28 08:35:16,702 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 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) [2021-10-28 08:35:16,703 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 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) [2021-10-28 08:35:16,703 INFO L186 Difference]: Start difference. First operand has 70 places, 62 transitions, 164 flow. Second operand 9 states and 572 transitions. [2021-10-28 08:35:16,703 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 72 transitions, 238 flow [2021-10-28 08:35:16,705 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 72 transitions, 232 flow, removed 1 selfloop flow, removed 2 redundant places. [2021-10-28 08:35:16,707 INFO L242 Difference]: Finished difference. Result has 79 places, 65 transitions, 202 flow [2021-10-28 08:35:16,708 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=68, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=62, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=54, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=202, PETRI_PLACES=79, PETRI_TRANSITIONS=65} [2021-10-28 08:35:16,708 INFO L334 CegarLoopForPetriNet]: 64 programPoint places, 15 predicate places. [2021-10-28 08:35:16,708 INFO L470 AbstractCegarLoop]: Abstraction has has 79 places, 65 transitions, 202 flow [2021-10-28 08:35:16,709 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 63.0) internal successors, (567), 9 states have internal predecessors, (567), 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) [2021-10-28 08:35:16,709 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 08:35:16,709 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-28 08:35:16,745 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-28 08:35:16,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,3 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:16,927 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting threadErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION, threadErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-10-28 08:35:16,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 08:35:16,928 INFO L85 PathProgramCache]: Analyzing trace with hash 113074322, now seen corresponding path program 3 times [2021-10-28 08:35:16,928 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 08:35:16,928 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162818282] [2021-10-28 08:35:16,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 08:35:16,929 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 08:35:16,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 08:35:17,025 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-28 08:35:17,025 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 08:35:17,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162818282] [2021-10-28 08:35:17,026 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162818282] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-28 08:35:17,026 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [142808801] [2021-10-28 08:35:17,026 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-28 08:35:17,026 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:17,026 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 08:35:17,027 INFO L229 MonitoredProcess]: Starting monitored process 4 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-28 08:35:17,053 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-28 08:35:17,151 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2021-10-28 08:35:17,151 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-28 08:35:17,153 INFO L263 TraceCheckSpWp]: Trace formula consists of 145 conjuncts, 7 conjunts are in the unsatisfiable core [2021-10-28 08:35:17,155 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-28 08:35:17,469 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 11 proven. 0 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2021-10-28 08:35:17,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [142808801] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 08:35:17,470 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2021-10-28 08:35:17,470 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [9] total 14 [2021-10-28 08:35:17,470 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [968082827] [2021-10-28 08:35:17,471 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-28 08:35:17,471 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 08:35:17,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-28 08:35:17,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=142, Unknown=0, NotChecked=0, Total=182 [2021-10-28 08:35:17,473 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 58 out of 72 [2021-10-28 08:35:17,474 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 79 places, 65 transitions, 202 flow. Second operand has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 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) [2021-10-28 08:35:17,475 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 08:35:17,475 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 58 of 72 [2021-10-28 08:35:17,475 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 08:35:17,576 INFO L129 PetriNetUnfolder]: 2/70 cut-off events. [2021-10-28 08:35:17,577 INFO L130 PetriNetUnfolder]: For 23/23 co-relation queries the response was YES. [2021-10-28 08:35:17,578 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143 conditions, 70 events. 2/70 cut-off events. For 23/23 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 20 event pairs, 0 based on Foata normal form. 1/71 useless extension candidates. Maximal degree in co-relation 91. Up to 5 conditions per place. [2021-10-28 08:35:17,578 INFO L132 encePairwiseOnDemand]: 64/72 looper letters, 0 selfloop transitions, 0 changer transitions 65/65 dead transitions. [2021-10-28 08:35:17,578 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 65 transitions, 238 flow [2021-10-28 08:35:17,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-28 08:35:17,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2021-10-28 08:35:17,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 534 transitions. [2021-10-28 08:35:17,581 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8240740740740741 [2021-10-28 08:35:17,582 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 534 transitions. [2021-10-28 08:35:17,582 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 534 transitions. [2021-10-28 08:35:17,583 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 08:35:17,583 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 534 transitions. [2021-10-28 08:35:17,585 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 59.333333333333336) internal successors, (534), 9 states have internal predecessors, (534), 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) [2021-10-28 08:35:17,587 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 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) [2021-10-28 08:35:17,588 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 72.0) internal successors, (720), 10 states have internal predecessors, (720), 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) [2021-10-28 08:35:17,588 INFO L186 Difference]: Start difference. First operand has 79 places, 65 transitions, 202 flow. Second operand 9 states and 534 transitions. [2021-10-28 08:35:17,588 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 65 transitions, 238 flow [2021-10-28 08:35:17,591 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 80 places, 65 transitions, 220 flow, removed 4 selfloop flow, removed 5 redundant places. [2021-10-28 08:35:17,592 INFO L242 Difference]: Finished difference. Result has 80 places, 0 transitions, 0 flow [2021-10-28 08:35:17,593 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=72, PETRI_DIFFERENCE_MINUEND_FLOW=180, PETRI_DIFFERENCE_MINUEND_PLACES=72, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=63, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=63, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=80, PETRI_TRANSITIONS=0} [2021-10-28 08:35:17,593 INFO L334 CegarLoopForPetriNet]: 64 programPoint places, 16 predicate places. [2021-10-28 08:35:17,593 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 0 transitions, 0 flow [2021-10-28 08:35:17,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 60.142857142857146) internal successors, (421), 7 states have internal predecessors, (421), 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) [2021-10-28 08:35:17,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 08:35:17,597 INFO L764 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:35:17,598 INFO L764 garLoopResultBuilder]: Registering result SAFE for location threadErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 08:35:17,637 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-28 08:35:17,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-28 08:35:17,826 INFO L731 BasicCegarLoop]: Path program histogram: [3, 1, 1] [2021-10-28 08:35:17,832 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 08:35:17,832 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 08:35:17,836 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 08:35:17 BasicIcfg [2021-10-28 08:35:17,836 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 08:35:17,837 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 08:35:17,837 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 08:35:17,838 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 08:35:17,838 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 08:35:14" (3/4) ... [2021-10-28 08:35:17,841 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 08:35:17,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thread [2021-10-28 08:35:17,873 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2021-10-28 08:35:17,873 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 08:35:17,874 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2021-10-28 08:35:17,874 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 08:35:17,923 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 08:35:17,925 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 08:35:17,927 INFO L168 Benchmark]: Toolchain (without parser) took 4928.04 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 59.3 MB in the beginning and 51.1 MB in the end (delta: 8.2 MB). Peak memory consumption was 27.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:17,931 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory was 76.9 MB in the beginning and 76.8 MB in the end (delta: 64.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 08:35:17,932 INFO L168 Benchmark]: CACSL2BoogieTranslator took 539.33 ms. Allocated memory is still 100.7 MB. Free memory was 59.1 MB in the beginning and 68.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:17,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.79 ms. Allocated memory is still 100.7 MB. Free memory was 68.5 MB in the beginning and 66.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:17,935 INFO L168 Benchmark]: Boogie Preprocessor took 29.14 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 65.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:17,936 INFO L168 Benchmark]: RCFGBuilder took 429.08 ms. Allocated memory is still 100.7 MB. Free memory was 64.9 MB in the beginning and 53.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:17,936 INFO L168 Benchmark]: TraceAbstraction took 3758.45 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 52.6 MB in the beginning and 53.1 MB in the end (delta: -455.8 kB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:17,937 INFO L168 Benchmark]: Witness Printer took 87.86 ms. Allocated memory is still 121.6 MB. Free memory was 53.1 MB in the beginning and 51.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 08:35:17,939 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 100.7 MB. Free memory was 76.9 MB in the beginning and 76.8 MB in the end (delta: 64.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 539.33 ms. Allocated memory is still 100.7 MB. Free memory was 59.1 MB in the beginning and 68.5 MB in the end (delta: -9.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.79 ms. Allocated memory is still 100.7 MB. Free memory was 68.5 MB in the beginning and 66.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.14 ms. Allocated memory is still 100.7 MB. Free memory was 66.5 MB in the beginning and 65.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 429.08 ms. Allocated memory is still 100.7 MB. Free memory was 64.9 MB in the beginning and 53.2 MB in the end (delta: 11.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 3758.45 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 52.6 MB in the beginning and 53.1 MB in the end (delta: -455.8 kB). Peak memory consumption was 21.2 MB. Max. memory is 16.1 GB. * Witness Printer took 87.86 ms. Allocated memory is still 121.6 MB. Free memory was 53.1 MB in the beginning and 51.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 706]: 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 3 procedures, 83 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 3.5s, OverallIterations: 5, TraceHistogramMax: 3, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 19 SDtfs, 26 SDslu, 18 SDs, 0 SdLazy, 105 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 208 GetRequests, 172 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=202occurred in iteration=4, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 439 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 431 ConstructedInterpolants, 0 QuantifiedInterpolants, 621 SizeOfPredicates, 10 NumberOfNonLiveVariables, 427 ConjunctsInSsa, 17 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 18/52 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! [2021-10-28 08:35:17,981 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_c3c38c37-c316-4b6e-b237-c8cee751a74c/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...