./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread/lazy01.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_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/data/config -Xmx15G -Xms4m -jar /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/data -tc /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/config/TaipanReach.xml -i ../../sv-benchmarks/c/pthread/lazy01.i -s /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4de3a2ca09971f3eb45edfe4b976415f8e15d63f ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 02:32:13,885 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-11 02:32:13,887 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-11 02:32:13,927 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-11 02:32:13,928 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-11 02:32:13,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-11 02:32:13,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-11 02:32:13,934 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-11 02:32:13,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-11 02:32:13,938 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-11 02:32:13,939 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-11 02:32:13,941 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-11 02:32:13,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-11 02:32:13,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-11 02:32:13,945 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-11 02:32:13,946 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-11 02:32:13,948 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-11 02:32:13,949 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-11 02:32:13,951 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-11 02:32:13,954 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-11 02:32:13,957 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-11 02:32:13,958 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-11 02:32:13,960 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-11 02:32:13,961 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-11 02:32:13,965 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-11 02:32:13,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-11 02:32:13,966 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-11 02:32:13,967 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-11 02:32:13,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-11 02:32:13,969 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-11 02:32:13,970 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-11 02:32:13,971 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-11 02:32:13,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-11 02:32:13,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-11 02:32:13,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-11 02:32:13,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-11 02:32:13,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-11 02:32:13,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-11 02:32:13,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-11 02:32:13,977 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-11 02:32:13,978 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-11 02:32:13,978 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/config/svcomp-Reach-32bit-Taipan_Default.epf [2021-10-11 02:32:14,006 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-11 02:32:14,007 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-11 02:32:14,008 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-10-11 02:32:14,008 INFO L138 SettingsManager]: * User list type=DISABLED [2021-10-11 02:32:14,008 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2021-10-11 02:32:14,008 INFO L138 SettingsManager]: * Explicit value domain=true [2021-10-11 02:32:14,008 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2021-10-11 02:32:14,009 INFO L138 SettingsManager]: * Octagon Domain=false [2021-10-11 02:32:14,009 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2021-10-11 02:32:14,009 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2021-10-11 02:32:14,009 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2021-10-11 02:32:14,009 INFO L138 SettingsManager]: * Interval Domain=false [2021-10-11 02:32:14,010 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2021-10-11 02:32:14,010 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2021-10-11 02:32:14,010 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2021-10-11 02:32:14,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-11 02:32:14,011 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-11 02:32:14,011 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-11 02:32:14,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-11 02:32:14,012 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-11 02:32:14,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-11 02:32:14,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-11 02:32:14,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-11 02:32:14,013 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-10-11 02:32:14,013 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-11 02:32:14,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-11 02:32:14,013 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-11 02:32:14,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-11 02:32:14,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-11 02:32:14,014 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-11 02:32:14,014 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-11 02:32:14,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-11 02:32:14,019 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-11 02:32:14,019 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-11 02:32:14,019 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2021-10-11 02:32:14,019 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-11 02:32:14,020 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-11 02:32:14,020 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-10-11 02:32:14,020 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-11 02:32:14,020 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4de3a2ca09971f3eb45edfe4b976415f8e15d63f [2021-10-11 02:32:14,308 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-11 02:32:14,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-11 02:32:14,345 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-11 02:32:14,346 INFO L271 PluginConnector]: Initializing CDTParser... [2021-10-11 02:32:14,347 INFO L275 PluginConnector]: CDTParser initialized [2021-10-11 02:32:14,348 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/../../sv-benchmarks/c/pthread/lazy01.i [2021-10-11 02:32:14,447 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/data/ab7f38866/525711b0cf3944368e53c3f05a001ae0/FLAGdb9449cce [2021-10-11 02:32:14,955 INFO L306 CDTParser]: Found 1 translation units. [2021-10-11 02:32:14,956 INFO L160 CDTParser]: Scanning /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/sv-benchmarks/c/pthread/lazy01.i [2021-10-11 02:32:14,970 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/data/ab7f38866/525711b0cf3944368e53c3f05a001ae0/FLAGdb9449cce [2021-10-11 02:32:15,276 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/data/ab7f38866/525711b0cf3944368e53c3f05a001ae0 [2021-10-11 02:32:15,278 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-11 02:32:15,279 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-10-11 02:32:15,281 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:15,281 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-10-11 02:32:15,284 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-10-11 02:32:15,285 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:15,287 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@cac2d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15, skipping insertion in model container [2021-10-11 02:32:15,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:15,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-10-11 02:32:15,368 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-10-11 02:32:15,762 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_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2021-10-11 02:32:15,778 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:15,791 INFO L203 MainTranslator]: Completed pre-run [2021-10-11 02:32:15,856 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_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/sv-benchmarks/c/pthread/lazy01.i[31042,31055] [2021-10-11 02:32:15,861 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-10-11 02:32:15,943 INFO L208 MainTranslator]: Completed translation [2021-10-11 02:32:15,944 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15 WrapperNode [2021-10-11 02:32:15,944 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-10-11 02:32:15,945 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:15,945 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-11 02:32:15,946 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-11 02:32:15,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:15,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:15,998 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-11 02:32:15,999 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-11 02:32:15,999 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-11 02:32:15,999 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-11 02:32:16,013 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:16,013 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:16,018 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:16,018 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:16,026 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:16,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:16,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... [2021-10-11 02:32:16,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-11 02:32:16,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-11 02:32:16,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-11 02:32:16,048 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-11 02:32:16,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (1/1) ... No working directory specified, using /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/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 02:32:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-10-11 02:32:16,137 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-11 02:32:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-11 02:32:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-11 02:32:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-11 02:32:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-11 02:32:16,138 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-11 02:32:16,138 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-10-11 02:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-10-11 02:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-10-11 02:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-10-11 02:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-10-11 02:32:16,139 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-11 02:32:16,139 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-11 02:32:16,141 WARN L209 CfgBuilder]: User set CodeBlockSize to LoopFreeBlock but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-11 02:32:16,597 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-11 02:32:16,597 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2021-10-11 02:32:16,599 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:16 BoogieIcfgContainer [2021-10-11 02:32:16,599 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-11 02:32:16,601 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-11 02:32:16,601 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-11 02:32:16,605 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-11 02:32:16,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 02:32:15" (1/3) ... [2021-10-11 02:32:16,606 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fe1e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:16, skipping insertion in model container [2021-10-11 02:32:16,606 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 02:32:15" (2/3) ... [2021-10-11 02:32:16,607 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42fe1e43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 02:32:16, skipping insertion in model container [2021-10-11 02:32:16,607 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:16" (3/3) ... [2021-10-11 02:32:16,608 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2021-10-11 02:32:16,624 WARN L169 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-11 02:32:16,624 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-11 02:32:16,628 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-10-11 02:32:16,629 INFO L354 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-11 02:32:16,660 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,661 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,661 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,661 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,662 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,662 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,662 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,662 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,663 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,663 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,663 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,663 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,664 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,665 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,666 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,667 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,667 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,668 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,668 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,669 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,670 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,671 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,672 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,672 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,672 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,672 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,673 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,673 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,673 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,673 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,674 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,674 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,674 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,674 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,675 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,675 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,676 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,676 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,678 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,679 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,679 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,679 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,680 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,691 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,692 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,692 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,692 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,695 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,696 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,696 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,696 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,696 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-11 02:32:16,727 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-10-11 02:32:16,739 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-10-11 02:32:16,770 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-10-11 02:32:16,770 INFO L378 AbstractCegarLoop]: Hoare is true [2021-10-11 02:32:16,770 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-10-11 02:32:16,770 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-10-11 02:32:16,770 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-10-11 02:32:16,771 INFO L382 AbstractCegarLoop]: Difference is false [2021-10-11 02:32:16,771 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-10-11 02:32:16,771 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-10-11 02:32:16,784 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-10-11 02:32:16,786 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 83 transitions, 208 flow [2021-10-11 02:32:16,790 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 83 transitions, 208 flow [2021-10-11 02:32:16,792 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 83 transitions, 208 flow [2021-10-11 02:32:16,842 INFO L129 PetriNetUnfolder]: 6/91 cut-off events. [2021-10-11 02:32:16,842 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-10-11 02:32:16,846 INFO L84 FinitePrefix]: Finished finitePrefix Result has 113 conditions, 91 events. 6/91 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 132 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 53. Up to 6 conditions per place. [2021-10-11 02:32:16,850 INFO L116 LiptonReduction]: Number of co-enabled transitions 1168 [2021-10-11 02:32:19,059 WARN L197 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-10-11 02:32:19,246 WARN L197 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-10-11 02:32:20,636 WARN L197 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2021-10-11 02:32:20,820 WARN L197 SmtUtils]: Spent 183.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-10-11 02:32:21,248 WARN L197 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2021-10-11 02:32:21,430 WARN L197 SmtUtils]: Spent 179.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2021-10-11 02:32:21,438 INFO L131 LiptonReduction]: Checked pairs total: 4518 [2021-10-11 02:32:21,438 INFO L133 LiptonReduction]: Total number of compositions: 51 [2021-10-11 02:32:21,445 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2021-10-11 02:32:21,491 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2021-10-11 02:32:21,493 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2021-10-11 02:32:21,503 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2021-10-11 02:32:21,504 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:21,504 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:21,505 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:21,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:21,511 INFO L82 PathProgramCache]: Analyzing trace with hash 498075008, now seen corresponding path program 1 times [2021-10-11 02:32:21,521 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:21,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951815399] [2021-10-11 02:32:21,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:21,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:21,768 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 02:32:21,770 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951815399] [2021-10-11 02:32:21,771 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:21,771 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2021-10-11 02:32:21,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107098443] [2021-10-11 02:32:21,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:21,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:21,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:21,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,799 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2021-10-11 02:32:21,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:21,869 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2021-10-11 02:32:21,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:21,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2021-10-11 02:32:21,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:21,895 INFO L225 Difference]: With dead ends: 480 [2021-10-11 02:32:21,895 INFO L226 Difference]: Without dead ends: 250 [2021-10-11 02:32:21,896 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:21,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2021-10-11 02:32:21,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2021-10-11 02:32:21,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2021-10-11 02:32:21,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2021-10-11 02:32:21,985 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2021-10-11 02:32:21,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:21,986 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2021-10-11 02:32:21,986 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:21,986 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2021-10-11 02:32:21,989 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-10-11 02:32:21,990 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:21,990 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:21,990 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-11 02:32:21,990 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:21,993 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:21,993 INFO L82 PathProgramCache]: Analyzing trace with hash -1946340514, now seen corresponding path program 1 times [2021-10-11 02:32:21,994 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:21,995 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045634572] [2021-10-11 02:32:21,995 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,120 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 02:32:22,121 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045634572] [2021-10-11 02:32:22,121 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,121 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:22,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [539207314] [2021-10-11 02:32:22,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-10-11 02:32:22,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-11 02:32:22,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,126 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2021-10-11 02:32:22,154 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,154 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2021-10-11 02:32:22,157 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-11 02:32:22,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2021-10-11 02:32:22,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,161 INFO L225 Difference]: With dead ends: 142 [2021-10-11 02:32:22,161 INFO L226 Difference]: Without dead ends: 140 [2021-10-11 02:32:22,161 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-11 02:32:22,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2021-10-11 02:32:22,178 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2021-10-11 02:32:22,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2021-10-11 02:32:22,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2021-10-11 02:32:22,183 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2021-10-11 02:32:22,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,183 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2021-10-11 02:32:22,183 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2021-10-11 02:32:22,184 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2021-10-11 02:32:22,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2021-10-11 02:32:22,184 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,184 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-11 02:32:22,184 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:22,185 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,185 INFO L82 PathProgramCache]: Analyzing trace with hash -206983733, now seen corresponding path program 1 times [2021-10-11 02:32:22,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,185 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430442483] [2021-10-11 02:32:22,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,232 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 02:32:22,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430442483] [2021-10-11 02:32:22,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-11 02:32:22,233 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257999451] [2021-10-11 02:32:22,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2021-10-11 02:32:22,234 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-11 02:32:22,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:22,235 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2021-10-11 02:32:22,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,254 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2021-10-11 02:32:22,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-11 02:32:22,255 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2021-10-11 02:32:22,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,256 INFO L225 Difference]: With dead ends: 135 [2021-10-11 02:32:22,256 INFO L226 Difference]: Without dead ends: 130 [2021-10-11 02:32:22,257 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2021-10-11 02:32:22,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2021-10-11 02:32:22,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2021-10-11 02:32:22,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2021-10-11 02:32:22,264 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2021-10-11 02:32:22,264 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2021-10-11 02:32:22,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,264 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2021-10-11 02:32:22,265 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2021-10-11 02:32:22,265 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2021-10-11 02:32:22,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2021-10-11 02:32:22,266 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,266 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,266 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-10-11 02:32:22,266 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:22,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,267 INFO L82 PathProgramCache]: Analyzing trace with hash 225996396, now seen corresponding path program 1 times [2021-10-11 02:32:22,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,267 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588409597] [2021-10-11 02:32:22,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-11 02:32:22,334 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 02:32:22,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588409597] [2021-10-11 02:32:22,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-11 02:32:22,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-11 02:32:22,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280097889] [2021-10-11 02:32:22,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-10-11 02:32:22,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2021-10-11 02:32:22,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-11 02:32:22,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-10-11 02:32:22,339 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2021-10-11 02:32:22,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-10-11 02:32:22,382 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2021-10-11 02:32:22,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-11 02:32:22,382 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2021-10-11 02:32:22,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-10-11 02:32:22,383 INFO L225 Difference]: With dead ends: 125 [2021-10-11 02:32:22,384 INFO L226 Difference]: Without dead ends: 120 [2021-10-11 02:32:22,384 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-10-11 02:32:22,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2021-10-11 02:32:22,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2021-10-11 02:32:22,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2021-10-11 02:32:22,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2021-10-11 02:32:22,399 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2021-10-11 02:32:22,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-10-11 02:32:22,399 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2021-10-11 02:32:22,399 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2021-10-11 02:32:22,399 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2021-10-11 02:32:22,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2021-10-11 02:32:22,402 INFO L414 BasicCegarLoop]: Found error trace [2021-10-11 02:32:22,402 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-10-11 02:32:22,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-11 02:32:22,403 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-10-11 02:32:22,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-11 02:32:22,403 INFO L82 PathProgramCache]: Analyzing trace with hash -1097626273, now seen corresponding path program 1 times [2021-10-11 02:32:22,403 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2021-10-11 02:32:22,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511360713] [2021-10-11 02:32:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-11 02:32:22,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:22,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:22,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-10-11 02:32:22,478 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-10-11 02:32:22,507 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2021-10-11 02:32:22,508 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2021-10-11 02:32:22,508 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-11 02:32:22,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 02:32:22 BasicIcfg [2021-10-11 02:32:22,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-11 02:32:22,550 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-10-11 02:32:22,550 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-10-11 02:32:22,550 INFO L275 PluginConnector]: Witness Printer initialized [2021-10-11 02:32:22,551 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 02:32:16" (3/4) ... [2021-10-11 02:32:22,553 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2021-10-11 02:32:22,609 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud_worker_vcloud-master_on_vcloud-master/run_dir_f5d1e00a-ac00-4321-9a8c-a1af65d58fe9/bin/utaipan-WLngWcDbfI/witness.graphml [2021-10-11 02:32:22,610 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-10-11 02:32:22,611 INFO L168 Benchmark]: Toolchain (without parser) took 7331.07 ms. Allocated memory was 83.9 MB in the beginning and 146.8 MB in the end (delta: 62.9 MB). Free memory was 44.3 MB in the beginning and 57.6 MB in the end (delta: -13.3 MB). Peak memory consumption was 48.7 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:22,611 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:22,612 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.45 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 44.0 MB in the beginning and 56.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:22,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 100.7 MB. Free memory was 56.4 MB in the beginning and 54.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:22,613 INFO L168 Benchmark]: Boogie Preprocessor took 48.63 ms. Allocated memory is still 100.7 MB. Free memory was 54.5 MB in the beginning and 53.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2021-10-11 02:32:22,614 INFO L168 Benchmark]: RCFGBuilder took 551.34 ms. Allocated memory is still 100.7 MB. Free memory was 53.3 MB in the beginning and 70.0 MB in the end (delta: -16.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:22,615 INFO L168 Benchmark]: TraceAbstraction took 5948.73 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 69.5 MB in the beginning and 61.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:22,615 INFO L168 Benchmark]: Witness Printer took 59.70 ms. Allocated memory is still 146.8 MB. Free memory was 61.8 MB in the beginning and 57.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-10-11 02:32:22,618 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 83.9 MB. Free memory is still 61.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 663.45 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 44.0 MB in the beginning and 56.4 MB in the end (delta: -12.4 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 52.72 ms. Allocated memory is still 100.7 MB. Free memory was 56.4 MB in the beginning and 54.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 48.63 ms. Allocated memory is still 100.7 MB. Free memory was 54.5 MB in the beginning and 53.3 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 551.34 ms. Allocated memory is still 100.7 MB. Free memory was 53.3 MB in the beginning and 70.0 MB in the end (delta: -16.7 MB). Peak memory consumption was 20.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5948.73 ms. Allocated memory was 100.7 MB in the beginning and 146.8 MB in the end (delta: 46.1 MB). Free memory was 69.5 MB in the beginning and 61.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 54.9 MB. Max. memory is 16.1 GB. * Witness Printer took 59.70 ms. Allocated memory is still 146.8 MB. Free memory was 61.8 MB in the beginning and 57.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 823 VarBasedMoverChecksPositive, 42 VarBasedMoverChecksNegative, 16 SemBasedMoverChecksPositive, 26 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 207 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 86 PlacesBefore, 40 PlacesAfterwards, 83 TransitionsBefore, 37 TransitionsAfterwards, 1168 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 20 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 51 TotalNumberOfCompositions, 4518 MoverChecksTotal - CounterExampleResult [Line: 722]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L702] 0 pthread_mutex_t mutex; [L703] 0 int data = 0; [L731] 0 pthread_t t1, t2, t3; [L732] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={10:0}] [L707] 1 data++ VAL [arg={0:0}, arg={0:0}, data=1, mutex={10:0}] [L709] 1 return 0; [L733] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=1, mutex={10:0}] [L714] 2 data+=2 VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] [L734] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [\result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] [L716] 2 return 0; [L721] COND TRUE 3 data >= 3 [L722] 3 reach_error() VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={10:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 5.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 117 SDtfs, 57 SDslu, 135 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...