./Ultimate.py --spec ../../sv-benchmarks/c/properties/valid-memsafety.prp --file ../../sv-benchmarks/c/pthread/reorder_2-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 2329fc70 Calling Ultimate with: /usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/config/AutomizerMemDerefMemtrack.xml -i ../../sv-benchmarks/c/pthread/reorder_2-2.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8 --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 --- Real Ultimate output --- [0.001s][warning][os,container] Duplicate cpuset controllers detected. Picking /sys/fs/cgroup/cpuset, skipping /sys/fs/cgroup/cpuset. This is Ultimate 0.2.2-dev-2329fc7 [2022-12-13 19:28:31,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-12-13 19:28:31,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-12-13 19:28:31,762 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-12-13 19:28:31,762 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-12-13 19:28:31,763 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-12-13 19:28:31,764 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-12-13 19:28:31,765 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-12-13 19:28:31,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-12-13 19:28:31,766 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-12-13 19:28:31,767 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-12-13 19:28:31,768 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-12-13 19:28:31,768 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-12-13 19:28:31,768 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-12-13 19:28:31,769 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-12-13 19:28:31,770 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-12-13 19:28:31,770 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-12-13 19:28:31,771 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-12-13 19:28:31,772 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-12-13 19:28:31,773 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-12-13 19:28:31,774 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-12-13 19:28:31,775 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-12-13 19:28:31,776 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-12-13 19:28:31,776 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-12-13 19:28:31,778 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-12-13 19:28:31,779 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-12-13 19:28:31,779 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-12-13 19:28:31,779 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-12-13 19:28:31,780 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-12-13 19:28:31,780 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-12-13 19:28:31,780 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-12-13 19:28:31,781 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-12-13 19:28:31,781 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-12-13 19:28:31,782 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-12-13 19:28:31,782 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-12-13 19:28:31,783 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-12-13 19:28:31,783 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-12-13 19:28:31,783 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-12-13 19:28:31,783 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-12-13 19:28:31,784 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-12-13 19:28:31,784 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-12-13 19:28:31,785 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2022-12-13 19:28:31,799 INFO L113 SettingsManager]: Loading preferences was successful [2022-12-13 19:28:31,800 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-12-13 19:28:31,800 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-12-13 19:28:31,800 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-12-13 19:28:31,800 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-12-13 19:28:31,811 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-12-13 19:28:31,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-12-13 19:28:31,812 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-12-13 19:28:31,812 INFO L138 SettingsManager]: * Use SBE=true [2022-12-13 19:28:31,812 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-12-13 19:28:31,812 INFO L138 SettingsManager]: * sizeof long=4 [2022-12-13 19:28:31,812 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-12-13 19:28:31,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-12-13 19:28:31,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-12-13 19:28:31,813 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-12-13 19:28:31,813 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2022-12-13 19:28:31,813 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2022-12-13 19:28:31,813 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2022-12-13 19:28:31,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-12-13 19:28:31,813 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-12-13 19:28:31,813 INFO L138 SettingsManager]: * sizeof long double=12 [2022-12-13 19:28:31,814 INFO L138 SettingsManager]: * Use constant arrays=true [2022-12-13 19:28:31,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-12-13 19:28:31,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-12-13 19:28:31,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-12-13 19:28:31,814 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:28:31,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-12-13 19:28:31,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-12-13 19:28:31,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-12-13 19:28:31,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-12-13 19:28:31,815 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-12-13 19:28:31,815 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2022-12-13 19:28:31,815 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-12-13 19:28:31,816 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2022-12-13 19:28:31,816 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 7c8e5f65b78a025b6376ca00ad63a807363d8e09dfbfc133c782b166d87996a6 [2022-12-13 19:28:31,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-12-13 19:28:32,010 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-12-13 19:28:32,012 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-12-13 19:28:32,013 INFO L271 PluginConnector]: Initializing CDTParser... [2022-12-13 19:28:32,013 INFO L275 PluginConnector]: CDTParser initialized [2022-12-13 19:28:32,014 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/../../sv-benchmarks/c/pthread/reorder_2-2.i [2022-12-13 19:28:34,529 INFO L500 CDTParser]: Created temporary CDT project at NULL [2022-12-13 19:28:34,739 INFO L351 CDTParser]: Found 1 translation units. [2022-12-13 19:28:34,740 INFO L172 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/sv-benchmarks/c/pthread/reorder_2-2.i [2022-12-13 19:28:34,751 INFO L394 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/data/a428bfc37/050840f323004697961e092125a091c4/FLAGd497c6531 [2022-12-13 19:28:35,119 INFO L402 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/data/a428bfc37/050840f323004697961e092125a091c4 [2022-12-13 19:28:35,124 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-12-13 19:28:35,126 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-12-13 19:28:35,128 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:35,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-12-13 19:28:35,133 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-12-13 19:28:35,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58fc760e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35, skipping insertion in model container [2022-12-13 19:28:35,135 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-12-13 19:28:35,181 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-12-13 19:28:35,628 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,635 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,639 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,641 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,642 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,645 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,646 WARN L237 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_457ad822-1191-4d5f-9998-865f5e5e3b8e/sv-benchmarks/c/pthread/reorder_2-2.i[59793,59806] [2022-12-13 19:28:35,649 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:35,657 INFO L203 MainTranslator]: Completed pre-run [2022-12-13 19:28:35,698 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,701 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,703 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,704 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,706 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,708 WARN L623 FunctionHandler]: Unknown extern function fprintf [2022-12-13 19:28:35,708 WARN L237 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_457ad822-1191-4d5f-9998-865f5e5e3b8e/sv-benchmarks/c/pthread/reorder_2-2.i[59793,59806] [2022-12-13 19:28:35,709 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-12-13 19:28:35,758 INFO L208 MainTranslator]: Completed translation [2022-12-13 19:28:35,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35 WrapperNode [2022-12-13 19:28:35,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-12-13 19:28:35,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-12-13 19:28:35,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-12-13 19:28:35,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-12-13 19:28:35,765 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,778 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,793 INFO L138 Inliner]: procedures = 370, calls = 36, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 135 [2022-12-13 19:28:35,794 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-12-13 19:28:35,794 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-12-13 19:28:35,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-12-13 19:28:35,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-12-13 19:28:35,801 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,801 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,804 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,804 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,809 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,811 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,813 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,813 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,815 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-12-13 19:28:35,816 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-12-13 19:28:35,816 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-12-13 19:28:35,816 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-12-13 19:28:35,817 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (1/1) ... [2022-12-13 19:28:35,822 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-12-13 19:28:35,830 INFO L189 MonitoredProcess]: No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/z3 [2022-12-13 19:28:35,841 INFO L229 MonitoredProcess]: Starting monitored process 1 with /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-12-13 19:28:35,843 INFO L327 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-12-13 19:28:35,873 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure setThread [2022-12-13 19:28:35,874 INFO L138 BoogieDeclarations]: Found implementation of procedure setThread [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure checkThread [2022-12-13 19:28:35,874 INFO L138 BoogieDeclarations]: Found implementation of procedure checkThread [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-12-13 19:28:35,874 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-12-13 19:28:35,874 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-12-13 19:28:35,875 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-12-13 19:28:35,969 INFO L235 CfgBuilder]: Building ICFG [2022-12-13 19:28:35,971 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-12-13 19:28:36,193 INFO L276 CfgBuilder]: Performing block encoding [2022-12-13 19:28:36,201 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-12-13 19:28:36,201 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-12-13 19:28:36,202 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:36 BoogieIcfgContainer [2022-12-13 19:28:36,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-12-13 19:28:36,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-12-13 19:28:36,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-12-13 19:28:36,206 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-12-13 19:28:36,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.12 07:28:35" (1/3) ... [2022-12-13 19:28:36,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd6f8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:28:36, skipping insertion in model container [2022-12-13 19:28:36,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.12 07:28:35" (2/3) ... [2022-12-13 19:28:36,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3fd6f8c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.12 07:28:36, skipping insertion in model container [2022-12-13 19:28:36,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:36" (3/3) ... [2022-12-13 19:28:36,208 INFO L112 eAbstractionObserver]: Analyzing ICFG reorder_2-2.i [2022-12-13 19:28:36,221 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-12-13 19:28:36,222 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-12-13 19:28:36,222 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-12-13 19:28:36,268 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-12-13 19:28:36,295 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 185 transitions, 392 flow [2022-12-13 19:28:36,366 INFO L130 PetriNetUnfolder]: 35/410 cut-off events. [2022-12-13 19:28:36,366 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 19:28:36,371 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 410 events. 35/410 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1705 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 217. Up to 8 conditions per place. [2022-12-13 19:28:36,372 INFO L82 GeneralOperation]: Start removeDead. Operand has 175 places, 185 transitions, 392 flow [2022-12-13 19:28:36,376 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 185 transitions, 392 flow [2022-12-13 19:28:36,378 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-12-13 19:28:36,386 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 175 places, 185 transitions, 392 flow [2022-12-13 19:28:36,387 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 175 places, 185 transitions, 392 flow [2022-12-13 19:28:36,388 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 175 places, 185 transitions, 392 flow [2022-12-13 19:28:36,429 INFO L130 PetriNetUnfolder]: 35/410 cut-off events. [2022-12-13 19:28:36,430 INFO L131 PetriNetUnfolder]: For 8/8 co-relation queries the response was YES. [2022-12-13 19:28:36,431 INFO L83 FinitePrefix]: Finished finitePrefix Result has 430 conditions, 410 events. 35/410 cut-off events. For 8/8 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1705 event pairs, 0 based on Foata normal form. 0/299 useless extension candidates. Maximal degree in co-relation 217. Up to 8 conditions per place. [2022-12-13 19:28:36,433 INFO L119 LiptonReduction]: Number of co-enabled transitions 2694 [2022-12-13 19:28:45,908 INFO L134 LiptonReduction]: Checked pairs total: 4839 [2022-12-13 19:28:45,909 INFO L136 LiptonReduction]: Total number of compositions: 205 [2022-12-13 19:28:45,919 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-12-13 19:28:45,924 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@7484b23, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-12-13 19:28:45,924 INFO L358 AbstractCegarLoop]: Starting to check reachability of 29 error locations. [2022-12-13 19:28:45,925 INFO L130 PetriNetUnfolder]: 0/0 cut-off events. [2022-12-13 19:28:45,925 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-12-13 19:28:45,925 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:28:45,925 INFO L209 CegarLoopForPetriNet]: trace histogram [1] [2022-12-13 19:28:45,926 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-13 19:28:45,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:28:45,929 INFO L85 PathProgramCache]: Analyzing trace with hash 671, now seen corresponding path program 1 times [2022-12-13 19:28:45,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:28:45,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [23016572] [2022-12-13 19:28:45,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:45,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:28:46,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:28:46,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:46,025 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:28:46,025 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [23016572] [2022-12-13 19:28:46,025 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [23016572] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:28:46,026 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:28:46,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [0] imperfect sequences [] total 0 [2022-12-13 19:28:46,027 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848939135] [2022-12-13 19:28:46,027 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:28:46,033 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-12-13 19:28:46,033 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:28:46,049 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-12-13 19:28:46,051 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-12-13 19:28:46,053 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 168 out of 390 [2022-12-13 19:28:46,055 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 53 places, 52 transitions, 126 flow. Second operand has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,055 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:28:46,055 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 168 of 390 [2022-12-13 19:28:46,056 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:28:46,175 INFO L130 PetriNetUnfolder]: 262/599 cut-off events. [2022-12-13 19:28:46,175 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-13 19:28:46,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1166 conditions, 599 events. 262/599 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3239 event pairs, 246 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 892. Up to 532 conditions per place. [2022-12-13 19:28:46,179 INFO L137 encePairwiseOnDemand]: 382/390 looper letters, 32 selfloop transitions, 0 changer transitions 0/44 dead transitions. [2022-12-13 19:28:46,180 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 44 transitions, 174 flow [2022-12-13 19:28:46,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-12-13 19:28:46,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-12-13 19:28:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 376 transitions. [2022-12-13 19:28:46,194 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.48205128205128206 [2022-12-13 19:28:46,195 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 376 transitions. [2022-12-13 19:28:46,195 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 376 transitions. [2022-12-13 19:28:46,197 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:28:46,199 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 376 transitions. [2022-12-13 19:28:46,202 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 188.0) internal successors, (376), 2 states have internal predecessors, (376), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,207 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,208 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 390.0) internal successors, (1170), 3 states have internal predecessors, (1170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,209 INFO L175 Difference]: Start difference. First operand has 53 places, 52 transitions, 126 flow. Second operand 2 states and 376 transitions. [2022-12-13 19:28:46,210 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 44 transitions, 174 flow [2022-12-13 19:28:46,212 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 44 transitions, 174 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:28:46,214 INFO L231 Difference]: Finished difference. Result has 46 places, 44 transitions, 110 flow [2022-12-13 19:28:46,215 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=110, PETRI_DIFFERENCE_MINUEND_PLACES=45, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=110, PETRI_PLACES=46, PETRI_TRANSITIONS=44} [2022-12-13 19:28:46,218 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -7 predicate places. [2022-12-13 19:28:46,218 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 44 transitions, 110 flow [2022-12-13 19:28:46,219 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 168.5) internal successors, (337), 2 states have internal predecessors, (337), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,219 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:28:46,219 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 19:28:46,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-12-13 19:28:46,219 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-13 19:28:46,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:28:46,220 INFO L85 PathProgramCache]: Analyzing trace with hash 21475, now seen corresponding path program 1 times [2022-12-13 19:28:46,220 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:28:46,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [843658969] [2022-12-13 19:28:46,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:46,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:28:46,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:28:46,464 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:46,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:28:46,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [843658969] [2022-12-13 19:28:46,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [843658969] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:28:46,465 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:28:46,465 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:28:46,465 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1415994925] [2022-12-13 19:28:46,465 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:28:46,466 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:28:46,466 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:28:46,466 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:28:46,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:28:46,529 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 390 [2022-12-13 19:28:46,530 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 44 transitions, 110 flow. Second operand has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,530 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:28:46,530 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 390 [2022-12-13 19:28:46,530 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:28:46,621 INFO L130 PetriNetUnfolder]: 262/589 cut-off events. [2022-12-13 19:28:46,621 INFO L131 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-12-13 19:28:46,621 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1157 conditions, 589 events. 262/589 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 3171 event pairs, 214 based on Foata normal form. 0/341 useless extension candidates. Maximal degree in co-relation 1152. Up to 467 conditions per place. [2022-12-13 19:28:46,623 INFO L137 encePairwiseOnDemand]: 385/390 looper letters, 33 selfloop transitions, 3 changer transitions 0/46 dead transitions. [2022-12-13 19:28:46,623 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 46 transitions, 186 flow [2022-12-13 19:28:46,623 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:28:46,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:28:46,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 509 transitions. [2022-12-13 19:28:46,625 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.43504273504273505 [2022-12-13 19:28:46,625 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 509 transitions. [2022-12-13 19:28:46,625 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 509 transitions. [2022-12-13 19:28:46,625 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:28:46,625 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 509 transitions. [2022-12-13 19:28:46,626 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 169.66666666666666) internal successors, (509), 3 states have internal predecessors, (509), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,628 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,629 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,629 INFO L175 Difference]: Start difference. First operand has 46 places, 44 transitions, 110 flow. Second operand 3 states and 509 transitions. [2022-12-13 19:28:46,629 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 46 transitions, 186 flow [2022-12-13 19:28:46,630 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 46 places, 46 transitions, 186 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-12-13 19:28:46,630 INFO L231 Difference]: Finished difference. Result has 46 places, 42 transitions, 112 flow [2022-12-13 19:28:46,631 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=106, PETRI_DIFFERENCE_MINUEND_PLACES=44, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=42, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=112, PETRI_PLACES=46, PETRI_TRANSITIONS=42} [2022-12-13 19:28:46,631 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -7 predicate places. [2022-12-13 19:28:46,631 INFO L495 AbstractCegarLoop]: Abstraction has has 46 places, 42 transitions, 112 flow [2022-12-13 19:28:46,631 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.66666666666666) internal successors, (473), 3 states have internal predecessors, (473), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,631 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:28:46,631 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 19:28:46,632 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-12-13 19:28:46,632 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-13 19:28:46,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:28:46,632 INFO L85 PathProgramCache]: Analyzing trace with hash 21476, now seen corresponding path program 1 times [2022-12-13 19:28:46,632 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:28:46,632 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1567013720] [2022-12-13 19:28:46,632 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:46,633 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:28:46,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-12-13 19:28:46,765 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-12-13 19:28:46,765 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-12-13 19:28:46,765 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1567013720] [2022-12-13 19:28:46,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1567013720] provided 1 perfect and 0 imperfect interpolant sequences [2022-12-13 19:28:46,766 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-12-13 19:28:46,766 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2022-12-13 19:28:46,766 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1222460676] [2022-12-13 19:28:46,766 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-12-13 19:28:46,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-12-13 19:28:46,766 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-12-13 19:28:46,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-12-13 19:28:46,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-12-13 19:28:46,826 INFO L478 CegarLoopForPetriNet]: Number of universal loopers: 161 out of 390 [2022-12-13 19:28:46,827 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 46 places, 42 transitions, 112 flow. Second operand has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,827 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-12-13 19:28:46,827 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 161 of 390 [2022-12-13 19:28:46,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-12-13 19:28:46,918 INFO L130 PetriNetUnfolder]: 262/579 cut-off events. [2022-12-13 19:28:46,918 INFO L131 PetriNetUnfolder]: For 34/34 co-relation queries the response was YES. [2022-12-13 19:28:46,919 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1181 conditions, 579 events. 262/579 cut-off events. For 34/34 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 3032 event pairs, 246 based on Foata normal form. 0/347 useless extension candidates. Maximal degree in co-relation 1175. Up to 531 conditions per place. [2022-12-13 19:28:46,920 INFO L137 encePairwiseOnDemand]: 387/390 looper letters, 31 selfloop transitions, 1 changer transitions 0/40 dead transitions. [2022-12-13 19:28:46,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 46 places, 40 transitions, 172 flow [2022-12-13 19:28:46,921 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-12-13 19:28:46,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-12-13 19:28:46,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 517 transitions. [2022-12-13 19:28:46,922 INFO L523 CegarLoopForPetriNet]: DFA transition density 0.44188034188034186 [2022-12-13 19:28:46,922 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 517 transitions. [2022-12-13 19:28:46,922 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 517 transitions. [2022-12-13 19:28:46,922 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-12-13 19:28:46,923 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 517 transitions. [2022-12-13 19:28:46,923 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 172.33333333333334) internal successors, (517), 3 states have internal predecessors, (517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,925 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 390.0) internal successors, (1560), 4 states have internal predecessors, (1560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,925 INFO L175 Difference]: Start difference. First operand has 46 places, 42 transitions, 112 flow. Second operand 3 states and 517 transitions. [2022-12-13 19:28:46,926 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 46 places, 40 transitions, 172 flow [2022-12-13 19:28:46,926 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 44 places, 40 transitions, 166 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-12-13 19:28:46,927 INFO L231 Difference]: Finished difference. Result has 44 places, 40 transitions, 104 flow [2022-12-13 19:28:46,927 INFO L271 CegarLoopForPetriNet]: {PETRI_ALPHABET=390, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=42, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=40, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=39, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=104, PETRI_PLACES=44, PETRI_TRANSITIONS=40} [2022-12-13 19:28:46,927 INFO L288 CegarLoopForPetriNet]: 53 programPoint places, -9 predicate places. [2022-12-13 19:28:46,928 INFO L495 AbstractCegarLoop]: Abstraction has has 44 places, 40 transitions, 104 flow [2022-12-13 19:28:46,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 161.66666666666666) internal successors, (485), 3 states have internal predecessors, (485), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-12-13 19:28:46,928 INFO L201 CegarLoopForPetriNet]: Found error trace [2022-12-13 19:28:46,928 INFO L209 CegarLoopForPetriNet]: trace histogram [1, 1] [2022-12-13 19:28:46,928 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-12-13 19:28:46,928 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE === [checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK, ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE, ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (and 26 more)] === [2022-12-13 19:28:46,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-12-13 19:28:46,928 INFO L85 PathProgramCache]: Analyzing trace with hash 21743, now seen corresponding path program 1 times [2022-12-13 19:28:46,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-12-13 19:28:46,929 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1360736753] [2022-12-13 19:28:46,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-12-13 19:28:46,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-12-13 19:28:46,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:28:46,953 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-12-13 19:28:46,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-12-13 19:28:46,984 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-12-13 19:28:46,984 INFO L360 BasicCegarLoop]: Counterexample is feasible [2022-12-13 19:28:46,985 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr11REQUIRES_VIOLATIONMEMORY_DEREFERENCE (28 of 29 remaining) [2022-12-13 19:28:46,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (27 of 29 remaining) [2022-12-13 19:28:46,986 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4REQUIRES_VIOLATIONMEMORY_DEREFERENCE (26 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5REQUIRES_VIOLATIONMEMORY_DEREFERENCE (25 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0REQUIRES_VIOLATIONMEMORY_DEREFERENCE (24 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1REQUIRES_VIOLATIONMEMORY_DEREFERENCE (23 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr6REQUIRES_VIOLATIONMEMORY_DEREFERENCE (22 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr7REQUIRES_VIOLATIONMEMORY_DEREFERENCE (21 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2REQUIRES_VIOLATIONMEMORY_DEREFERENCE (20 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3REQUIRES_VIOLATIONMEMORY_DEREFERENCE (19 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr8REQUIRES_VIOLATIONMEMORY_DEREFERENCE (18 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr9REQUIRES_VIOLATIONMEMORY_DEREFERENCE (17 of 29 remaining) [2022-12-13 19:28:46,987 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr12REQUIRES_VIOLATIONMEMORY_DEREFERENCE (16 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr13REQUIRES_VIOLATIONMEMORY_DEREFERENCE (15 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr16REQUIRES_VIOLATIONMEMORY_DEREFERENCE (14 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr17REQUIRES_VIOLATIONMEMORY_DEREFERENCE (13 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr10REQUIRES_VIOLATIONMEMORY_DEREFERENCE (12 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr20REQUIRES_VIOLATIONMEMORY_DEREFERENCE (11 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr21REQUIRES_VIOLATIONMEMORY_DEREFERENCE (10 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr18REQUIRES_VIOLATIONMEMORY_DEREFERENCE (9 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr19REQUIRES_VIOLATIONMEMORY_DEREFERENCE (8 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr14REQUIRES_VIOLATIONMEMORY_DEREFERENCE (7 of 29 remaining) [2022-12-13 19:28:46,988 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr15REQUIRES_VIOLATIONMEMORY_DEREFERENCE (6 of 29 remaining) [2022-12-13 19:28:46,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr22REQUIRES_VIOLATIONMEMORY_DEREFERENCE (5 of 29 remaining) [2022-12-13 19:28:46,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr23REQUIRES_VIOLATIONMEMORY_DEREFERENCE (4 of 29 remaining) [2022-12-13 19:28:46,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr24ASSERT_VIOLATIONMEMORY_LEAK (3 of 29 remaining) [2022-12-13 19:28:46,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 29 remaining) [2022-12-13 19:28:46,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 29 remaining) [2022-12-13 19:28:46,989 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location checkThreadErr0ASSERT_VIOLATIONMEMORY_LEAK (0 of 29 remaining) [2022-12-13 19:28:46,989 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-12-13 19:28:46,989 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1] [2022-12-13 19:28:46,994 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-12-13 19:28:46,994 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-12-13 19:28:47,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.12 07:28:47 BasicIcfg [2022-12-13 19:28:47,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-12-13 19:28:47,008 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-12-13 19:28:47,008 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-12-13 19:28:47,008 INFO L275 PluginConnector]: Witness Printer initialized [2022-12-13 19:28:47,008 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.12 07:28:36" (3/4) ... [2022-12-13 19:28:47,010 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2022-12-13 19:28:47,032 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/witness.graphml [2022-12-13 19:28:47,032 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-12-13 19:28:47,033 INFO L158 Benchmark]: Toolchain (without parser) took 11906.71ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 96.0MB in the beginning and 58.9MB in the end (delta: 37.1MB). Peak memory consumption was 83.5MB. Max. memory is 16.1GB. [2022-12-13 19:28:47,033 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. [2022-12-13 19:28:47,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 631.52ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 56.2MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2022-12-13 19:28:47,033 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.92ms. Allocated memory is still 132.1MB. Free memory was 56.2MB in the beginning and 53.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:28:47,034 INFO L158 Benchmark]: Boogie Preprocessor took 21.21ms. Allocated memory is still 132.1MB. Free memory was 53.7MB in the beginning and 52.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:28:47,034 INFO L158 Benchmark]: RCFGBuilder took 386.91ms. Allocated memory is still 132.1MB. Free memory was 51.6MB in the beginning and 86.6MB in the end (delta: -34.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. [2022-12-13 19:28:47,034 INFO L158 Benchmark]: TraceAbstraction took 10803.38ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 85.9MB in the beginning and 59.9MB in the end (delta: 26.0MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. [2022-12-13 19:28:47,034 INFO L158 Benchmark]: Witness Printer took 24.28ms. Allocated memory is still 176.2MB. Free memory was 59.9MB in the beginning and 58.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-12-13 19:28:47,036 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 132.1MB. Free memory is still 102.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 631.52ms. Allocated memory is still 132.1MB. Free memory was 96.0MB in the beginning and 56.2MB in the end (delta: 39.7MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 33.92ms. Allocated memory is still 132.1MB. Free memory was 56.2MB in the beginning and 53.7MB in the end (delta: 2.5MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 21.21ms. Allocated memory is still 132.1MB. Free memory was 53.7MB in the beginning and 52.0MB in the end (delta: 1.7MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 386.91ms. Allocated memory is still 132.1MB. Free memory was 51.6MB in the beginning and 86.6MB in the end (delta: -34.9MB). Peak memory consumption was 10.1MB. Max. memory is 16.1GB. * TraceAbstraction took 10803.38ms. Allocated memory was 132.1MB in the beginning and 176.2MB in the end (delta: 44.0MB). Free memory was 85.9MB in the beginning and 59.9MB in the end (delta: 26.0MB). Peak memory consumption was 69.2MB. Max. memory is 16.1GB. * Witness Printer took 24.28ms. Allocated memory is still 176.2MB. Free memory was 59.9MB in the beginning and 58.9MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 9.5s, 175 PlacesBefore, 53 PlacesAfterwards, 185 TransitionsBefore, 52 TransitionsAfterwards, 2694 CoEnabledTransitionPairs, 8 FixpointIterations, 76 TrivialSequentialCompositions, 95 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 23 ConcurrentYvCompositions, 11 ChoiceCompositions, 205 TotalNumberOfCompositions, 4839 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 3655, independent: 3609, independent conditional: 0, independent unconditional: 3609, dependent: 46, dependent conditional: 0, dependent unconditional: 46, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1580, independent: 1570, independent conditional: 0, independent unconditional: 1570, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 3655, independent: 2039, independent conditional: 0, independent unconditional: 2039, dependent: 36, dependent conditional: 0, dependent unconditional: 36, unknown: 1580, unknown conditional: 0, unknown unconditional: 1580] , Statistics on independence cache: Total cache size (in pairs): 80, Positive cache size: 77, Positive conditional cache size: 0, Positive unconditional cache size: 77, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: -1]: pointer dereference may fail pointer dereference may fail We found a FailurePath: [L1236] static int iSet = 2; [L1237] static int iCheck = 2; [L1238] static int a = 0; [L1239] static int b = 0; [L1245] int i, err; [L1246] COND TRUE argc != 1 [L1247] COND FALSE !(argc != 3) [L1255] EXPR \read(iSet) [L1255] pthread_t setPool[iSet]; [L1256] EXPR \read(iCheck) [L1256] pthread_t checkPool[iCheck]; [L1257] i = 0 VAL [\old(argc)=3, \read(iCheck)=2, \read(iSet)=1073741824, a=0, argc=3, argv={1073741826:1073741825}, argv={1073741826:1073741825}, b=0, checkPool={11:0}, i=0, iCheck={10:0}, iSet={9:0}, setPool={13:0}] [L1257] EXPR \read(iSet) [L1257] COND TRUE i < iSet - UnprovableResult [Line: 1292]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: -1]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 1244]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: Not analyzed. - UnprovableResult [Line: 1264]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1258]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 186 locations, 29 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: 10.7s, OverallIterations: 4, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 9.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 311 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 143 mSDsluCounter, 42 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 14 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 265 IncrementalHoareTripleChecker+Invalid, 279 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 14 mSolverCounterUnsat, 42 mSDtfsCounter, 265 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 0.3s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 2 ConstructedInterpolants, 0 QuantifiedInterpolants, 14 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 RESULT: Ultimate proved your program to be incorrect! [2022-12-13 19:28:47,053 INFO L540 MonitoredProcess]: [MP /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_457ad822-1191-4d5f-9998-865f5e5e3b8e/bin/uautomizer-uyxdKDjOR8/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(valid-deref)