./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.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_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/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_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/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_7765d6d0-5a25-45f6-92cd-8fefc11956ef/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 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 ............................................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:02:20,605 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-28 09:02:20,615 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-28 09:02:20,702 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-28 09:02:20,703 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-28 09:02:20,705 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-28 09:02:20,707 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-28 09:02:20,711 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-28 09:02:20,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-28 09:02:20,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-28 09:02:20,717 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-28 09:02:20,719 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-28 09:02:20,720 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-28 09:02:20,722 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-28 09:02:20,724 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-28 09:02:20,727 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-28 09:02:20,728 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-28 09:02:20,730 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-28 09:02:20,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-28 09:02:20,737 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-28 09:02:20,747 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-28 09:02:20,754 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-28 09:02:20,756 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-28 09:02:20,758 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-28 09:02:20,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-28 09:02:20,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-28 09:02:20,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-28 09:02:20,766 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-28 09:02:20,767 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-28 09:02:20,768 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-28 09:02:20,769 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-28 09:02:20,770 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-28 09:02:20,771 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-28 09:02:20,773 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-28 09:02:20,775 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-28 09:02:20,775 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-28 09:02:20,776 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-28 09:02:20,777 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-28 09:02:20,777 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-28 09:02:20,778 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-28 09:02:20,779 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-28 09:02:20,780 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-28 09:02:20,832 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-28 09:02:20,832 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-28 09:02:20,833 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-28 09:02:20,834 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-28 09:02:20,843 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-28 09:02:20,844 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-28 09:02:20,844 INFO L138 SettingsManager]: * Use SBE=true [2021-10-28 09:02:20,844 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-28 09:02:20,844 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-28 09:02:20,845 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-28 09:02:20,845 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-28 09:02:20,845 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-28 09:02:20,845 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-28 09:02:20,846 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-28 09:02:20,846 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-28 09:02:20,846 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-28 09:02:20,846 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-28 09:02:20,846 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-28 09:02:20,847 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-28 09:02:20,847 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-28 09:02:20,847 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-28 09:02:20,847 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-28 09:02:20,848 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:02:20,848 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-28 09:02:20,848 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-28 09:02:20,848 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-28 09:02:20,849 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-28 09:02:20,849 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-28 09:02:20,849 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-28 09:02:20,849 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-10-28 09:02:20,850 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-28 09:02:20,850 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-28 09:02:20,850 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_7765d6d0-5a25-45f6-92cd-8fefc11956ef/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 72289b7b84ec29dc48aff6fa2f8d521998f594af518139867a01f104107e1865 [2021-10-28 09:02:21,272 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-28 09:02:21,317 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-28 09:02:21,320 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-28 09:02:21,321 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-28 09:02:21,322 INFO L275 PluginConnector]: CDTParser initialized [2021-10-28 09:02:21,323 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-10-28 09:02:21,422 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/data/0f11d2c24/468c9042f3164af499b8412161302ec1/FLAGc3a0cb925 [2021-10-28 09:02:22,244 INFO L306 CDTParser]: Found 1 translation units. [2021-10-28 09:02:22,245 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2021-10-28 09:02:22,274 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/data/0f11d2c24/468c9042f3164af499b8412161302ec1/FLAGc3a0cb925 [2021-10-28 09:02:22,447 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/data/0f11d2c24/468c9042f3164af499b8412161302ec1 [2021-10-28 09:02:22,450 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-28 09:02:22,452 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-28 09:02:22,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:22,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-28 09:02:22,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-28 09:02:22,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:22" (1/1) ... [2021-10-28 09:02:22,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@574f2035 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:22, skipping insertion in model container [2021-10-28 09:02:22,477 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 09:02:22" (1/1) ... [2021-10-28 09:02:22,487 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-28 09:02:22,536 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-28 09:02:22,801 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-28 09:02:23,017 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_7765d6d0-5a25-45f6-92cd-8fefc11956ef/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-10-28 09:02:23,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:23,050 INFO L203 MainTranslator]: Completed pre-run [2021-10-28 09:02:23,086 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-10-28 09:02:23,141 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_7765d6d0-5a25-45f6-92cd-8fefc11956ef/sv-benchmarks/c/pthread-ext/18_read_write_lock.i[31161,31174] [2021-10-28 09:02:23,145 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-28 09:02:23,212 INFO L208 MainTranslator]: Completed translation [2021-10-28 09:02:23,213 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23 WrapperNode [2021-10-28 09:02:23,213 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-28 09:02:23,214 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:23,215 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-28 09:02:23,215 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-28 09:02:23,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,276 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,320 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-28 09:02:23,321 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-28 09:02:23,321 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-28 09:02:23,321 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-28 09:02:23,332 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,333 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,340 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,341 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,358 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,360 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,374 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-28 09:02:23,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-28 09:02:23,376 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-28 09:02:23,377 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-28 09:02:23,379 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (1/1) ... [2021-10-28 09:02:23,388 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-28 09:02:23,403 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/z3 [2021-10-28 09:02:23,424 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-28 09:02:23,446 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-28 09:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2021-10-28 09:02:23,505 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2021-10-28 09:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-28 09:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-10-28 09:02:23,505 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-28 09:02:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-28 09:02:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-28 09:02:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-10-28 09:02:23,506 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-28 09:02:23,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-28 09:02:23,509 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 09:02:24,087 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-28 09:02:24,087 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-10-28 09:02:24,093 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:24 BoogieIcfgContainer [2021-10-28 09:02:24,094 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-28 09:02:24,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-28 09:02:24,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-28 09:02:24,103 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-28 09:02:24,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 09:02:22" (1/3) ... [2021-10-28 09:02:24,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40862ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:02:24, skipping insertion in model container [2021-10-28 09:02:24,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 09:02:23" (2/3) ... [2021-10-28 09:02:24,105 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@40862ece and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 09:02:24, skipping insertion in model container [2021-10-28 09:02:24,105 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:24" (3/3) ... [2021-10-28 09:02:24,107 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2021-10-28 09:02:24,115 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-28 09:02:24,115 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-28 09:02:24,116 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-28 09:02:24,116 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-28 09:02:24,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,149 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,149 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,150 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,150 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,150 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,151 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,152 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,153 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,153 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,154 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,155 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,162 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,163 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,164 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,164 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,164 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-28 09:02:24,167 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-10-28 09:02:24,238 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-10-28 09:02:24,257 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 09:02:24,257 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-10-28 09:02:24,274 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 54 places, 51 transitions, 107 flow [2021-10-28 09:02:24,322 INFO L129 PetriNetUnfolder]: 1/50 cut-off events. [2021-10-28 09:02:24,322 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:02:24,326 INFO L84 FinitePrefix]: Finished finitePrefix Result has 54 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 18 event pairs, 0 based on Foata normal form. 0/48 useless extension candidates. Maximal degree in co-relation 32. Up to 2 conditions per place. [2021-10-28 09:02:24,326 INFO L82 GeneralOperation]: Start removeDead. Operand has 54 places, 51 transitions, 107 flow [2021-10-28 09:02:24,333 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 41 places, 37 transitions, 77 flow [2021-10-28 09:02:24,363 INFO L129 PetriNetUnfolder]: 0/36 cut-off events. [2021-10-28 09:02:24,363 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:02:24,363 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:02:24,364 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] [2021-10-28 09:02:24,365 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 09:02:24,372 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:24,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1748782142, now seen corresponding path program 1 times [2021-10-28 09:02:24,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:24,385 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318380362] [2021-10-28 09:02:24,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:24,387 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:24,844 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 09:02:24,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:24,845 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318380362] [2021-10-28 09:02:24,846 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1318380362] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:24,847 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:24,847 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-10-28 09:02:24,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [951080511] [2021-10-28 09:02:24,862 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-28 09:02:24,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:24,880 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-28 09:02:24,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-10-28 09:02:24,888 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 51 [2021-10-28 09:02:24,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 37 transitions, 77 flow. Second operand has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 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 09:02:24,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:02:24,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 51 [2021-10-28 09:02:24,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:02:25,066 INFO L129 PetriNetUnfolder]: 3/59 cut-off events. [2021-10-28 09:02:25,067 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2021-10-28 09:02:25,069 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 59 events. 3/59 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 93 event pairs, 1 based on Foata normal form. 3/61 useless extension candidates. Maximal degree in co-relation 61. Up to 14 conditions per place. [2021-10-28 09:02:25,070 INFO L132 encePairwiseOnDemand]: 45/51 looper letters, 7 selfloop transitions, 6 changer transitions 3/44 dead transitions. [2021-10-28 09:02:25,071 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 47 places, 44 transitions, 123 flow [2021-10-28 09:02:25,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-10-28 09:02:25,075 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2021-10-28 09:02:25,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 291 transitions. [2021-10-28 09:02:25,098 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8151260504201681 [2021-10-28 09:02:25,099 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 291 transitions. [2021-10-28 09:02:25,100 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 291 transitions. [2021-10-28 09:02:25,106 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:02:25,110 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 291 transitions. [2021-10-28 09:02:25,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 41.57142857142857) internal successors, (291), 7 states have internal predecessors, (291), 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 09:02:25,124 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 51.0) internal successors, (408), 8 states have internal predecessors, (408), 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 09:02:25,125 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 51.0) internal successors, (408), 8 states have internal predecessors, (408), 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 09:02:25,128 INFO L186 Difference]: Start difference. First operand has 41 places, 37 transitions, 77 flow. Second operand 7 states and 291 transitions. [2021-10-28 09:02:25,129 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 47 places, 44 transitions, 123 flow [2021-10-28 09:02:25,133 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 122 flow, removed 0 selfloop flow, removed 1 redundant places. [2021-10-28 09:02:25,137 INFO L242 Difference]: Finished difference. Result has 51 places, 41 transitions, 114 flow [2021-10-28 09:02:25,140 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=76, PETRI_DIFFERENCE_MINUEND_PLACES=40, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=37, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=114, PETRI_PLACES=51, PETRI_TRANSITIONS=41} [2021-10-28 09:02:25,141 INFO L334 CegarLoopForPetriNet]: 41 programPoint places, 10 predicate places. [2021-10-28 09:02:25,141 INFO L470 AbstractCegarLoop]: Abstraction has has 51 places, 41 transitions, 114 flow [2021-10-28 09:02:25,142 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 40.333333333333336) internal successors, (242), 6 states have internal predecessors, (242), 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 09:02:25,142 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:02:25,142 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] [2021-10-28 09:02:25,143 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-28 09:02:25,143 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 09:02:25,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:25,144 INFO L85 PathProgramCache]: Analyzing trace with hash 2029870619, now seen corresponding path program 1 times [2021-10-28 09:02:25,144 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:25,145 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333899331] [2021-10-28 09:02:25,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:25,146 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:25,286 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 09:02:25,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:25,287 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333899331] [2021-10-28 09:02:25,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [333899331] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:25,288 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:25,288 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-28 09:02:25,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775341676] [2021-10-28 09:02:25,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-28 09:02:25,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:25,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-28 09:02:25,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-28 09:02:25,293 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 51 [2021-10-28 09:02:25,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 51 places, 41 transitions, 114 flow. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 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) [2021-10-28 09:02:25,294 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:02:25,294 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 51 [2021-10-28 09:02:25,294 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:02:25,314 INFO L129 PetriNetUnfolder]: 2/48 cut-off events. [2021-10-28 09:02:25,315 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2021-10-28 09:02:25,315 INFO L84 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 48 events. 2/48 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 43 event pairs, 0 based on Foata normal form. 1/49 useless extension candidates. Maximal degree in co-relation 69. Up to 6 conditions per place. [2021-10-28 09:02:25,316 INFO L132 encePairwiseOnDemand]: 48/51 looper letters, 2 selfloop transitions, 2 changer transitions 0/41 dead transitions. [2021-10-28 09:02:25,316 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 51 places, 41 transitions, 122 flow [2021-10-28 09:02:25,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-28 09:02:25,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2021-10-28 09:02:25,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 140 transitions. [2021-10-28 09:02:25,319 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9150326797385621 [2021-10-28 09:02:25,319 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 140 transitions. [2021-10-28 09:02:25,319 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 140 transitions. [2021-10-28 09:02:25,320 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:02:25,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 140 transitions. [2021-10-28 09:02:25,321 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 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 09:02:25,323 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 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) [2021-10-28 09:02:25,323 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 51.0) internal successors, (204), 4 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) [2021-10-28 09:02:25,324 INFO L186 Difference]: Start difference. First operand has 51 places, 41 transitions, 114 flow. Second operand 3 states and 140 transitions. [2021-10-28 09:02:25,324 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 51 places, 41 transitions, 122 flow [2021-10-28 09:02:25,326 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 48 places, 41 transitions, 114 flow, removed 2 selfloop flow, removed 3 redundant places. [2021-10-28 09:02:25,328 INFO L242 Difference]: Finished difference. Result has 49 places, 41 transitions, 114 flow [2021-10-28 09:02:25,328 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=46, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=41, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=114, PETRI_PLACES=49, PETRI_TRANSITIONS=41} [2021-10-28 09:02:25,329 INFO L334 CegarLoopForPetriNet]: 41 programPoint places, 8 predicate places. [2021-10-28 09:02:25,330 INFO L470 AbstractCegarLoop]: Abstraction has has 49 places, 41 transitions, 114 flow [2021-10-28 09:02:25,330 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 3 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) [2021-10-28 09:02:25,331 INFO L246 CegarLoopForPetriNet]: Found error trace [2021-10-28 09:02:25,331 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] [2021-10-28 09:02:25,331 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-28 09:02:25,332 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION] === [2021-10-28 09:02:25,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-28 09:02:25,333 INFO L85 PathProgramCache]: Analyzing trace with hash 1023134555, now seen corresponding path program 2 times [2021-10-28 09:02:25,333 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-28 09:02:25,333 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [453245046] [2021-10-28 09:02:25,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-28 09:02:25,334 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-28 09:02:25,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-28 09:02:25,520 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 09:02:25,520 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-28 09:02:25,521 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [453245046] [2021-10-28 09:02:25,521 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [453245046] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-28 09:02:25,521 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-28 09:02:25,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-28 09:02:25,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [317788741] [2021-10-28 09:02:25,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-28 09:02:25,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-28 09:02:25,523 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-28 09:02:25,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-28 09:02:25,525 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 51 [2021-10-28 09:02:25,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 49 places, 41 transitions, 114 flow. Second operand has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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 09:02:25,526 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2021-10-28 09:02:25,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 51 [2021-10-28 09:02:25,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2021-10-28 09:02:25,549 INFO L129 PetriNetUnfolder]: 0/30 cut-off events. [2021-10-28 09:02:25,549 INFO L130 PetriNetUnfolder]: For 5/6 co-relation queries the response was YES. [2021-10-28 09:02:25,550 INFO L84 FinitePrefix]: Finished finitePrefix Result has 49 conditions, 30 events. 0/30 cut-off events. For 5/6 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 3 event pairs, 0 based on Foata normal form. 1/31 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2021-10-28 09:02:25,550 INFO L132 encePairwiseOnDemand]: 48/51 looper letters, 0 selfloop transitions, 0 changer transitions 30/30 dead transitions. [2021-10-28 09:02:25,550 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 30 transitions, 83 flow [2021-10-28 09:02:25,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-28 09:02:25,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2021-10-28 09:02:25,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 180 transitions. [2021-10-28 09:02:25,564 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8823529411764706 [2021-10-28 09:02:25,564 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 180 transitions. [2021-10-28 09:02:25,564 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 180 transitions. [2021-10-28 09:02:25,564 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-10-28 09:02:25,565 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 180 transitions. [2021-10-28 09:02:25,566 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 45.0) internal successors, (180), 4 states have internal predecessors, (180), 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 09:02:25,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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 09:02:25,568 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 51.0) internal successors, (255), 5 states have internal predecessors, (255), 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 09:02:25,568 INFO L186 Difference]: Start difference. First operand has 49 places, 41 transitions, 114 flow. Second operand 4 states and 180 transitions. [2021-10-28 09:02:25,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 30 transitions, 83 flow [2021-10-28 09:02:25,569 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 30 transitions, 73 flow, removed 0 selfloop flow, removed 6 redundant places. [2021-10-28 09:02:25,570 INFO L242 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2021-10-28 09:02:25,570 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=51, PETRI_DIFFERENCE_MINUEND_FLOW=67, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=30, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=30, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2021-10-28 09:02:25,571 INFO L334 CegarLoopForPetriNet]: 41 programPoint places, -2 predicate places. [2021-10-28 09:02:25,571 INFO L470 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2021-10-28 09:02:25,571 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 44.75) internal successors, (179), 4 states have internal predecessors, (179), 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 09:02:25,574 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION [2021-10-28 09:02:25,575 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-28 09:02:25,576 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-28 09:02:25,580 INFO L731 BasicCegarLoop]: Path program histogram: [2, 1] [2021-10-28 09:02:25,583 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-28 09:02:25,584 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-28 09:02:25,589 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.10 09:02:25 BasicIcfg [2021-10-28 09:02:25,589 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-28 09:02:25,590 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-28 09:02:25,590 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-28 09:02:25,590 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-28 09:02:25,591 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 09:02:24" (3/4) ... [2021-10-28 09:02:25,595 INFO L137 WitnessPrinter]: Generating witness for correct program [2021-10-28 09:02:25,603 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2021-10-28 09:02:25,611 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 16 nodes and edges [2021-10-28 09:02:25,611 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2021-10-28 09:02:25,612 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2021-10-28 09:02:25,612 INFO L910 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2021-10-28 09:02:25,665 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/witness.graphml [2021-10-28 09:02:25,666 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-28 09:02:25,668 INFO L168 Benchmark]: Toolchain (without parser) took 3214.47 ms. Allocated memory was 79.7 MB in the beginning and 115.3 MB in the end (delta: 35.7 MB). Free memory was 42.3 MB in the beginning and 56.1 MB in the end (delta: -13.8 MB). Peak memory consumption was 22.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:25,669 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:25,670 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.27 ms. Allocated memory is still 115.3 MB. Free memory was 94.5 MB in the beginning and 82.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:25,682 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.41 ms. Allocated memory is still 115.3 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-28 09:02:25,683 INFO L168 Benchmark]: Boogie Preprocessor took 53.14 ms. Allocated memory is still 115.3 MB. Free memory was 80.3 MB in the beginning and 79.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:25,684 INFO L168 Benchmark]: RCFGBuilder took 718.30 ms. Allocated memory is still 115.3 MB. Free memory was 79.0 MB in the beginning and 64.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:25,684 INFO L168 Benchmark]: TraceAbstraction took 1493.38 ms. Allocated memory is still 115.3 MB. Free memory was 63.6 MB in the beginning and 58.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:25,685 INFO L168 Benchmark]: Witness Printer took 76.06 ms. Allocated memory is still 115.3 MB. Free memory was 58.8 MB in the beginning and 56.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-28 09:02:25,689 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 79.7 MB. Free memory was 59.8 MB in the beginning and 59.8 MB in the end (delta: 39.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 744.27 ms. Allocated memory is still 115.3 MB. Free memory was 94.5 MB in the beginning and 82.4 MB in the end (delta: 12.1 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 105.41 ms. Allocated memory is still 115.3 MB. Free memory was 82.4 MB in the beginning and 80.3 MB in the end (delta: 2.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 53.14 ms. Allocated memory is still 115.3 MB. Free memory was 80.3 MB in the beginning and 79.0 MB in the end (delta: 1.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 718.30 ms. Allocated memory is still 115.3 MB. Free memory was 79.0 MB in the beginning and 64.4 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1493.38 ms. Allocated memory is still 115.3 MB. Free memory was 63.6 MB in the beginning and 58.8 MB in the end (delta: 4.9 MB). Peak memory consumption was 7.7 MB. Max. memory is 16.1 GB. * Witness Printer took 76.06 ms. Allocated memory is still 115.3 MB. Free memory was 58.8 MB in the beginning and 56.1 MB in the end (delta: 2.7 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: 738]: 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, 59 locations, 2 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: 1.3s, OverallIterations: 3, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 15 SDtfs, 8 SDslu, 13 SDs, 0 SdLazy, 48 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=114occurred in iteration=1, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 99 NumberOfCodeBlocks, 99 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 96 ConstructedInterpolants, 0 QuantifiedInterpolants, 160 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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! [2021-10-28 09:02:25,740 INFO L552 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_7765d6d0-5a25-45f6-92cd-8fefc11956ef/bin/uautomizer-UnR33cPsHg/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...