./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/config/AutomizerReach.xml -i ../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC --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 84f62959dc20df3dcecaea8b03619fc02cb1358b ........................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2021-10-11 00:28:37,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 00:28:37,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 00:28:37,965 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 00:28:37,966 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 00:28:37,968 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 00:28:37,970 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 00:28:37,972 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 00:28:37,976 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 00:28:37,984 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 00:28:37,986 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 00:28:37,989 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 00:28:37,989 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 00:28:37,992 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 00:28:37,994 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 00:28:37,997 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 00:28:37,999 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 00:28:38,000 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 00:28:38,003 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 00:28:38,013 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 00:28:38,016 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 00:28:38,018 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 00:28:38,021 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 00:28:38,022 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 00:28:38,028 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 00:28:38,029 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 00:28:38,029 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 00:28:38,031 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 00:28:38,032 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 00:28:38,033 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 00:28:38,034 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 00:28:38,035 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 00:28:38,037 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 00:28:38,038 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 00:28:38,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 00:28:38,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 00:28:38,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 00:28:38,041 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 00:28:38,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 00:28:38,042 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 00:28:38,043 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 00:28:38,045 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/config/svcomp-Reach-32bit-Automizer_Default.epf [2021-10-11 00:28:38,091 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 00:28:38,091 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 00:28:38,093 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-11 00:28:38,093 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-11 00:28:38,094 INFO L138 SettingsManager]: * Use SBE=true [2021-10-11 00:28:38,094 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 00:28:38,094 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 00:28:38,094 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 00:28:38,095 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 00:28:38,095 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 00:28:38,096 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 00:28:38,096 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 00:28:38,097 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 00:28:38,097 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 00:28:38,097 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 00:28:38,097 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 00:28:38,097 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 00:28:38,098 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 00:28:38,098 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-11 00:28:38,098 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 00:28:38,098 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:38,099 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 00:28:38,099 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 00:28:38,099 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 00:28:38,099 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-11 00:28:38,100 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 00:28:38,100 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 00:28:38,100 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 00:28:38,100 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_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 84f62959dc20df3dcecaea8b03619fc02cb1358b [2021-10-11 00:28:38,422 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 00:28:38,452 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 00:28:38,457 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 00:28:38,458 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 00:28:38,459 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 00:28:38,461 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/../../sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2021-10-11 00:28:38,518 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/data/e8cb9f5be/52cddc33dfa14027ab01edea2721a4f5/FLAG2e51cd297 [2021-10-11 00:28:39,080 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 00:28:39,083 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i [2021-10-11 00:28:39,108 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/data/e8cb9f5be/52cddc33dfa14027ab01edea2721a4f5/FLAG2e51cd297 [2021-10-11 00:28:39,332 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/data/e8cb9f5be/52cddc33dfa14027ab01edea2721a4f5 [2021-10-11 00:28:39,335 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 00:28:39,338 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 00:28:39,340 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:39,340 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 00:28:39,344 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 00:28:39,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:39" (1/1) ... [2021-10-11 00:28:39,348 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b666c8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:39, skipping insertion in model container [2021-10-11 00:28:39,348 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 12:28:39" (1/1) ... [2021-10-11 00:28:39,356 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 00:28:39,419 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 00:28:39,869 WARN L226 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_b1858d6c-a62e-4bf6-b775-0b70249b62c5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2021-10-11 00:28:39,877 WARN L226 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_b1858d6c-a62e-4bf6-b775-0b70249b62c5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2021-10-11 00:28:39,879 WARN L226 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_b1858d6c-a62e-4bf6-b775-0b70249b62c5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2021-10-11 00:28:39,881 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:39,890 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 00:28:39,956 WARN L226 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_b1858d6c-a62e-4bf6-b775-0b70249b62c5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25842,25855] [2021-10-11 00:28:39,957 WARN L226 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_b1858d6c-a62e-4bf6-b775-0b70249b62c5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[25967,25980] [2021-10-11 00:28:39,957 WARN L226 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_b1858d6c-a62e-4bf6-b775-0b70249b62c5/sv-benchmarks/c/ldv-sets/test_mutex_double_lock.i[26082,26095] [2021-10-11 00:28:39,959 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 00:28:40,032 INFO L208 MainTranslator]: Completed translation [2021-10-11 00:28:40,033 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40 WrapperNode [2021-10-11 00:28:40,034 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 00:28:40,035 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:40,035 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 00:28:40,035 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 00:28:40,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,077 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,125 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 00:28:40,126 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 00:28:40,126 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 00:28:40,126 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 00:28:40,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,136 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,143 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,143 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,164 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,171 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,175 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... [2021-10-11 00:28:40,181 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 00:28:40,182 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 00:28:40,182 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 00:28:40,182 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 00:28:40,183 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 00:28:40,282 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-10-11 00:28:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-10-11 00:28:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 00:28:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-10-11 00:28:40,283 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 00:28:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-10-11 00:28:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 00:28:40,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 00:28:40,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 00:28:41,044 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 00:28:41,045 INFO L299 CfgBuilder]: Removed 82 assume(true) statements. [2021-10-11 00:28:41,047 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:41 BoogieIcfgContainer [2021-10-11 00:28:41,047 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 00:28:41,050 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 00:28:41,050 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 00:28:41,053 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 00:28:41,055 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 12:28:39" (1/3) ... [2021-10-11 00:28:41,056 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606a2083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:41, skipping insertion in model container [2021-10-11 00:28:41,056 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 12:28:40" (2/3) ... [2021-10-11 00:28:41,057 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@606a2083 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 12:28:41, skipping insertion in model container [2021-10-11 00:28:41,057 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:41" (3/3) ... [2021-10-11 00:28:41,059 INFO L111 eAbstractionObserver]: Analyzing ICFG test_mutex_double_lock.i [2021-10-11 00:28:41,076 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 00:28:41,080 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2021-10-11 00:28:41,092 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 00:28:41,135 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 00:28:41,135 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 00:28:41,135 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 00:28:41,135 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 00:28:41,136 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 00:28:41,136 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 00:28:41,136 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 00:28:41,136 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 00:28:41,159 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states. [2021-10-11 00:28:41,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:28:41,166 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:41,166 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:41,167 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:41,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:41,172 INFO L82 PathProgramCache]: Analyzing trace with hash 912087840, now seen corresponding path program 1 times [2021-10-11 00:28:41,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:41,181 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1198001876] [2021-10-11 00:28:41,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:41,333 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:41,334 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1198001876] [2021-10-11 00:28:41,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:41,335 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 00:28:41,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971699024] [2021-10-11 00:28:41,341 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-10-11 00:28:41,341 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:41,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-10-11 00:28:41,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:41,358 INFO L87 Difference]: Start difference. First operand 88 states. Second operand 2 states. [2021-10-11 00:28:41,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:41,405 INFO L93 Difference]: Finished difference Result 172 states and 239 transitions. [2021-10-11 00:28:41,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-11 00:28:41,406 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 14 [2021-10-11 00:28:41,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:41,416 INFO L225 Difference]: With dead ends: 172 [2021-10-11 00:28:41,417 INFO L226 Difference]: Without dead ends: 84 [2021-10-11 00:28:41,420 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-10-11 00:28:41,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2021-10-11 00:28:41,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 84. [2021-10-11 00:28:41,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 84 states. [2021-10-11 00:28:41,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 101 transitions. [2021-10-11 00:28:41,463 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 101 transitions. Word has length 14 [2021-10-11 00:28:41,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:41,464 INFO L481 AbstractCegarLoop]: Abstraction has 84 states and 101 transitions. [2021-10-11 00:28:41,464 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2021-10-11 00:28:41,464 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 101 transitions. [2021-10-11 00:28:41,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:28:41,465 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:41,466 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:41,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 00:28:41,466 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:41,467 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:41,467 INFO L82 PathProgramCache]: Analyzing trace with hash 793647061, now seen corresponding path program 1 times [2021-10-11 00:28:41,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:41,468 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758385695] [2021-10-11 00:28:41,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:41,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:41,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:41,620 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758385695] [2021-10-11 00:28:41,621 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:41,621 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-11 00:28:41,621 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [327379021] [2021-10-11 00:28:41,623 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:28:41,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:41,625 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:28:41,625 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:28:41,626 INFO L87 Difference]: Start difference. First operand 84 states and 101 transitions. Second operand 4 states. [2021-10-11 00:28:41,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:41,782 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2021-10-11 00:28:41,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 00:28:41,783 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 00:28:41,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:41,785 INFO L225 Difference]: With dead ends: 135 [2021-10-11 00:28:41,787 INFO L226 Difference]: Without dead ends: 131 [2021-10-11 00:28:41,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:41,790 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2021-10-11 00:28:41,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 88. [2021-10-11 00:28:41,801 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 88 states. [2021-10-11 00:28:41,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 88 states to 88 states and 105 transitions. [2021-10-11 00:28:41,803 INFO L78 Accepts]: Start accepts. Automaton has 88 states and 105 transitions. Word has length 14 [2021-10-11 00:28:41,803 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:41,804 INFO L481 AbstractCegarLoop]: Abstraction has 88 states and 105 transitions. [2021-10-11 00:28:41,804 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:28:41,804 INFO L276 IsEmpty]: Start isEmpty. Operand 88 states and 105 transitions. [2021-10-11 00:28:41,805 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2021-10-11 00:28:41,805 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:41,805 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 00:28:41,805 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 00:28:41,806 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:41,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:41,806 INFO L82 PathProgramCache]: Analyzing trace with hash 795255775, now seen corresponding path program 1 times [2021-10-11 00:28:41,807 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:41,807 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2029531279] [2021-10-11 00:28:41,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:41,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 00:28:41,955 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-11 00:28:41,956 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2029531279] [2021-10-11 00:28:41,956 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 00:28:41,956 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 00:28:41,956 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [170739859] [2021-10-11 00:28:41,957 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 00:28:41,957 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-11 00:28:41,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 00:28:41,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-11 00:28:41,958 INFO L87 Difference]: Start difference. First operand 88 states and 105 transitions. Second operand 4 states. [2021-10-11 00:28:42,259 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 00:28:42,259 INFO L93 Difference]: Finished difference Result 235 states and 279 transitions. [2021-10-11 00:28:42,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 00:28:42,260 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2021-10-11 00:28:42,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 00:28:42,262 INFO L225 Difference]: With dead ends: 235 [2021-10-11 00:28:42,262 INFO L226 Difference]: Without dead ends: 156 [2021-10-11 00:28:42,263 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-10-11 00:28:42,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2021-10-11 00:28:42,274 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 101. [2021-10-11 00:28:42,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 101 states. [2021-10-11 00:28:42,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 101 states to 101 states and 118 transitions. [2021-10-11 00:28:42,276 INFO L78 Accepts]: Start accepts. Automaton has 101 states and 118 transitions. Word has length 14 [2021-10-11 00:28:42,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 00:28:42,276 INFO L481 AbstractCegarLoop]: Abstraction has 101 states and 118 transitions. [2021-10-11 00:28:42,276 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 00:28:42,277 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 118 transitions. [2021-10-11 00:28:42,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2021-10-11 00:28:42,278 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 00:28:42,278 INFO L422 BasicCegarLoop]: 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] [2021-10-11 00:28:42,278 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 00:28:42,278 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 00:28:42,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 00:28:42,279 INFO L82 PathProgramCache]: Analyzing trace with hash 1115638045, now seen corresponding path program 1 times [2021-10-11 00:28:42,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-11 00:28:42,280 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514541257] [2021-10-11 00:28:42,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 00:28:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:42,345 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:42,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 00:28:42,444 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 00:28:42,501 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-10-11 00:28:42,501 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 00:28:42,502 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 00:28:42,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 12:28:42 BoogieIcfgContainer [2021-10-11 00:28:42,574 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 00:28:42,575 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 00:28:42,575 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 00:28:42,575 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 00:28:42,576 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 12:28:41" (3/4) ... [2021-10-11 00:28:42,577 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 00:28:42,667 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_b1858d6c-a62e-4bf6-b775-0b70249b62c5/bin/uautomizer-Z5i5R5N3CC/witness.graphml [2021-10-11 00:28:42,667 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 00:28:42,668 INFO L168 Benchmark]: Toolchain (without parser) took 3329.78 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 60.8 MB in the beginning and 82.7 MB in the end (delta: -21.9 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:42,669 INFO L168 Benchmark]: CDTParser took 0.59 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 78.4 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 00:28:42,669 INFO L168 Benchmark]: CACSL2BoogieTranslator took 694.15 ms. Allocated memory is still 100.7 MB. Free memory was 60.5 MB in the beginning and 57.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:42,670 INFO L168 Benchmark]: Boogie Procedure Inliner took 90.16 ms. Allocated memory is still 100.7 MB. Free memory was 57.0 MB in the beginning and 53.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:42,670 INFO L168 Benchmark]: Boogie Preprocessor took 55.37 ms. Allocated memory is still 100.7 MB. Free memory was 53.7 MB in the beginning and 50.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:42,671 INFO L168 Benchmark]: RCFGBuilder took 865.42 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 50.4 MB in the beginning and 60.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:42,671 INFO L168 Benchmark]: TraceAbstraction took 1524.43 ms. Allocated memory is still 121.6 MB. Free memory was 59.5 MB in the beginning and 87.9 MB in the end (delta: -28.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:42,671 INFO L168 Benchmark]: Witness Printer took 92.47 ms. Allocated memory is still 121.6 MB. Free memory was 87.9 MB in the beginning and 82.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 00:28:42,674 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.59 ms. Allocated memory is still 100.7 MB. Free memory was 78.5 MB in the beginning and 78.4 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 694.15 ms. Allocated memory is still 100.7 MB. Free memory was 60.5 MB in the beginning and 57.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 90.16 ms. Allocated memory is still 100.7 MB. Free memory was 57.0 MB in the beginning and 53.7 MB in the end (delta: 3.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 55.37 ms. Allocated memory is still 100.7 MB. Free memory was 53.7 MB in the beginning and 50.4 MB in the end (delta: 3.3 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 865.42 ms. Allocated memory was 100.7 MB in the beginning and 121.6 MB in the end (delta: 21.0 MB). Free memory was 50.4 MB in the beginning and 60.3 MB in the end (delta: -9.8 MB). Peak memory consumption was 25.2 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1524.43 ms. Allocated memory is still 121.6 MB. Free memory was 59.5 MB in the beginning and 87.9 MB in the end (delta: -28.3 MB). Peak memory consumption was 26.3 MB. Max. memory is 16.1 GB. * Witness Printer took 92.47 ms. Allocated memory is still 121.6 MB. Free memory was 87.9 MB in the beginning and 82.7 MB in the end (delta: 5.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 669]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L665] struct ldv_list_head mutexes = { &(mutexes), &(mutexes) }; VAL [mutexes={6:0}] [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={6:0}] [L578] return ptr; VAL [mutexes={6:0}] [L682] struct mutex *m1 = ldv_successful_malloc(sizeof(struct mutex)); [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={6:0}] [L578] return ptr; VAL [mutexes={6:0}] [L683] struct mutex *m2 = ldv_successful_malloc(sizeof(struct mutex)); [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={6:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={6:0}] [L660] return 0; VAL [mutexes={6:0}] [L669] COND FALSE !(ldv_is_in_set(m, &mutexes)) [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={6:0}] [L655] COND FALSE !(&m->list != (s)) VAL [mutexes={6:0}] [L660] return 0; VAL [mutexes={6:0}] [L636] COND TRUE !ldv_is_in_set(new, s) [L637] struct ldv_list_element *le; [L576] void *ptr = malloc(size); [L565] COND FALSE !(!cond) VAL [mutexes={6:0}] [L578] return ptr; VAL [mutexes={6:0}] [L638] le = (struct ldv_list_element*)ldv_successful_malloc(sizeof(struct ldv_list_element)) [L639] le->e = new [L608] head->next [L596] next->prev = new [L597] new->next = next [L598] new->prev = prev [L599] prev->next = new VAL [mutexes={6:0}] [L654] struct ldv_list_element *m; [L655] EXPR (s)->next [L655] const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); [L655] m = ({ const typeof( ((typeof(*m) *)0)->list ) *__mptr = ((s)->next); (typeof(*m) *)( (char *)__mptr - ((size_t) &((typeof(*m) *)0)->list) );}) VAL [mutexes={6:0}] [L655] COND TRUE &m->list != (s) [L656] EXPR m->e VAL [mutexes={6:0}] [L656] COND TRUE m->e == e [L657] return 1; VAL [mutexes={6:0}] [L669] COND TRUE ldv_is_in_set(m, &mutexes) [L669] reach_error() VAL [mutexes={6:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 88 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 266 SDtfs, 187 SDslu, 269 SDs, 0 SdLazy, 96 SolverSat, 32 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=101occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 98 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 70 NumberOfCodeBlocks, 70 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 2119 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! Received shutdown request...