./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock_true-unreach-call.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 30255c5981d11991d2414e28c50bab33dbbcb910 ................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-22 21:45:29,776 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-22 21:45:29,777 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-22 21:45:29,784 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-22 21:45:29,784 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-22 21:45:29,785 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-22 21:45:29,786 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-22 21:45:29,787 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-22 21:45:29,788 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-22 21:45:29,788 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-22 21:45:29,789 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-22 21:45:29,789 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-22 21:45:29,790 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-22 21:45:29,790 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-22 21:45:29,791 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-22 21:45:29,791 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-22 21:45:29,792 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-22 21:45:29,793 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-22 21:45:29,794 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-22 21:45:29,795 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-22 21:45:29,796 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-22 21:45:29,797 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-22 21:45:29,798 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-22 21:45:29,798 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-22 21:45:29,798 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-22 21:45:29,799 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-22 21:45:29,800 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-22 21:45:29,800 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-22 21:45:29,800 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-22 21:45:29,801 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-22 21:45:29,801 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-22 21:45:29,802 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-22 21:45:29,802 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-22 21:45:29,802 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-22 21:45:29,803 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-22 21:45:29,803 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-22 21:45:29,804 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-22 21:45:29,812 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-22 21:45:29,813 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-22 21:45:29,813 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-22 21:45:29,813 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-22 21:45:29,814 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-22 21:45:29,814 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-22 21:45:29,814 INFO L133 SettingsManager]: * Use SBE=true [2018-11-22 21:45:29,814 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-22 21:45:29,814 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-22 21:45:29,814 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-22 21:45:29,815 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-22 21:45:29,816 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-22 21:45:29,816 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-22 21:45:29,816 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-22 21:45:29,816 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-22 21:45:29,816 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-22 21:45:29,816 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-22 21:45:29,816 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-22 21:45:29,817 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-22 21:45:29,817 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-22 21:45:29,817 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-22 21:45:29,817 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-22 21:45:29,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-22 21:45:29,817 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer 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(__VERIFIER_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 -> 30255c5981d11991d2414e28c50bab33dbbcb910 [2018-11-22 21:45:29,843 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-22 21:45:29,852 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-22 21:45:29,854 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-22 21:45:29,856 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-22 21:45:29,856 INFO L276 PluginConnector]: CDTParser initialized [2018-11-22 21:45:29,856 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/../../sv-benchmarks/c/pthread-ext/18_read_write_lock_true-unreach-call.i [2018-11-22 21:45:29,896 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/data/9ae56efc9/ca3f800a703e45a0aac02c05c86d60d6/FLAG67aba007d [2018-11-22 21:45:30,232 INFO L307 CDTParser]: Found 1 translation units. [2018-11-22 21:45:30,233 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/sv-benchmarks/c/pthread-ext/18_read_write_lock_true-unreach-call.i [2018-11-22 21:45:30,239 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/data/9ae56efc9/ca3f800a703e45a0aac02c05c86d60d6/FLAG67aba007d [2018-11-22 21:45:30,247 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/data/9ae56efc9/ca3f800a703e45a0aac02c05c86d60d6 [2018-11-22 21:45:30,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-22 21:45:30,251 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-22 21:45:30,252 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-22 21:45:30,252 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-22 21:45:30,255 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-22 21:45:30,255 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,257 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5e65e346 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30, skipping insertion in model container [2018-11-22 21:45:30,258 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,266 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-22 21:45:30,296 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-22 21:45:30,510 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:45:30,517 INFO L191 MainTranslator]: Completed pre-run [2018-11-22 21:45:30,587 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-22 21:45:30,627 INFO L195 MainTranslator]: Completed translation [2018-11-22 21:45:30,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30 WrapperNode [2018-11-22 21:45:30,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-22 21:45:30,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-22 21:45:30,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-22 21:45:30,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-22 21:45:30,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,643 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,656 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-22 21:45:30,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-22 21:45:30,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-22 21:45:30,656 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-22 21:45:30,662 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,662 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,663 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,663 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,666 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,667 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... [2018-11-22 21:45:30,669 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-22 21:45:30,669 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-22 21:45:30,669 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-22 21:45:30,669 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-22 21:45:30,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/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 [2018-11-22 21:45:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-22 21:45:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2018-11-22 21:45:30,704 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2018-11-22 21:45:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-22 21:45:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-22 21:45:30,704 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-22 21:45:30,705 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-22 21:45:30,705 WARN L198 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2018-11-22 21:45:30,771 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_w_returnLabel [2018-11-22 21:45:30,794 INFO L1415 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_r_returnLabel [2018-11-22 21:45:30,843 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-22 21:45:30,843 INFO L280 CfgBuilder]: Removed 10 assue(true) statements. [2018-11-22 21:45:30,843 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:45:30 BoogieIcfgContainer [2018-11-22 21:45:30,843 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-22 21:45:30,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-22 21:45:30,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-22 21:45:30,847 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-22 21:45:30,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 09:45:30" (1/3) ... [2018-11-22 21:45:30,847 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e920d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:45:30, skipping insertion in model container [2018-11-22 21:45:30,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 09:45:30" (2/3) ... [2018-11-22 21:45:30,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3e920d32 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 09:45:30, skipping insertion in model container [2018-11-22 21:45:30,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:45:30" (3/3) ... [2018-11-22 21:45:30,850 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock_true-unreach-call.i [2018-11-22 21:45:30,870 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:45:30,870 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:45:30,870 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:45:30,870 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:45:30,871 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:45:30,871 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-22 21:45:30,885 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2018-11-22 21:45:30,885 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-22 21:45:30,890 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-22 21:45:30,900 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-22 21:45:30,914 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-22 21:45:30,915 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-22 21:45:30,915 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-22 21:45:30,915 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-22 21:45:30,915 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-22 21:45:30,915 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-22 21:45:30,915 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-22 21:45:30,916 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-22 21:45:30,916 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-22 21:45:30,922 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36places, 35 transitions [2018-11-22 21:45:30,936 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 125 states. [2018-11-22 21:45:30,937 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2018-11-22 21:45:30,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-22 21:45:30,944 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:45:30,945 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:45:30,946 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:45:30,951 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:45:30,951 INFO L82 PathProgramCache]: Analyzing trace with hash -1956366165, now seen corresponding path program 1 times [2018-11-22 21:45:30,953 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:45:30,953 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:45:30,991 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:45:30,992 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:45:30,992 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:45:31,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:45:31,069 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:45:31,071 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:45:31,071 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-22 21:45:31,073 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-22 21:45:31,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-22 21:45:31,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-22 21:45:31,084 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2018-11-22 21:45:31,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:45:31,106 INFO L93 Difference]: Finished difference Result 165 states and 279 transitions. [2018-11-22 21:45:31,107 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-22 21:45:31,108 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-22 21:45:31,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:45:31,113 INFO L225 Difference]: With dead ends: 165 [2018-11-22 21:45:31,114 INFO L226 Difference]: Without dead ends: 37 [2018-11-22 21:45:31,115 INFO L631 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 [2018-11-22 21:45:31,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2018-11-22 21:45:31,134 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2018-11-22 21:45:31,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2018-11-22 21:45:31,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2018-11-22 21:45:31,137 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 19 [2018-11-22 21:45:31,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:45:31,137 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2018-11-22 21:45:31,137 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-22 21:45:31,138 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2018-11-22 21:45:31,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:45:31,138 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:45:31,138 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:45:31,139 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:45:31,139 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:45:31,139 INFO L82 PathProgramCache]: Analyzing trace with hash 1943260432, now seen corresponding path program 1 times [2018-11-22 21:45:31,139 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:45:31,139 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:45:31,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:45:31,143 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:45:31,143 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:45:31,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:45:31,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:45:31,211 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:45:31,212 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:45:31,212 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:45:31,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:45:31,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:45:31,213 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 4 states. [2018-11-22 21:45:31,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:45:31,231 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2018-11-22 21:45:31,231 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:45:31,231 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-22 21:45:31,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:45:31,232 INFO L225 Difference]: With dead ends: 37 [2018-11-22 21:45:31,232 INFO L226 Difference]: Without dead ends: 32 [2018-11-22 21:45:31,232 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:45:31,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-22 21:45:31,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2018-11-22 21:45:31,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2018-11-22 21:45:31,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2018-11-22 21:45:31,235 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 21 [2018-11-22 21:45:31,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:45:31,235 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2018-11-22 21:45:31,235 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:45:31,235 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2018-11-22 21:45:31,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-22 21:45:31,235 INFO L394 BasicCegarLoop]: Found error trace [2018-11-22 21:45:31,236 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-22 21:45:31,236 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-22 21:45:31,236 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-22 21:45:31,236 INFO L82 PathProgramCache]: Analyzing trace with hash 1127946220, now seen corresponding path program 2 times [2018-11-22 21:45:31,236 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-22 21:45:31,236 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-22 21:45:31,238 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:45:31,239 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-22 21:45:31,239 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-22 21:45:31,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-22 21:45:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-22 21:45:31,277 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-22 21:45:31,277 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-22 21:45:31,278 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-22 21:45:31,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-22 21:45:31,278 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:45:31,278 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 4 states. [2018-11-22 21:45:31,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-22 21:45:31,296 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-22 21:45:31,297 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-22 21:45:31,297 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2018-11-22 21:45:31,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-22 21:45:31,297 INFO L225 Difference]: With dead ends: 18 [2018-11-22 21:45:31,297 INFO L226 Difference]: Without dead ends: 0 [2018-11-22 21:45:31,298 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-22 21:45:31,298 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-22 21:45:31,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-22 21:45:31,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-22 21:45:31,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-22 21:45:31,298 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2018-11-22 21:45:31,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-22 21:45:31,298 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-22 21:45:31,299 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-22 21:45:31,299 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-22 21:45:31,299 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-22 21:45:31,301 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2018-11-22 21:45:31,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 09:45:31 BasicIcfg [2018-11-22 21:45:31,303 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-22 21:45:31,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-22 21:45:31,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-22 21:45:31,303 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-22 21:45:31,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 09:45:30" (3/4) ... [2018-11-22 21:45:31,307 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-22 21:45:31,312 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2018-11-22 21:45:31,316 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-22 21:45:31,316 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-22 21:45:31,343 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b1f7d561-fa47-4d4c-9535-5976e0fffeca/bin-2019/uautomizer/witness.graphml [2018-11-22 21:45:31,343 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-22 21:45:31,344 INFO L168 Benchmark]: Toolchain (without parser) took 1093.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 958.0 MB in the beginning and 1.0 GB in the end (delta: -84.5 MB). Peak memory consumption was 51.2 MB. Max. memory is 11.5 GB. [2018-11-22 21:45:31,345 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:45:31,345 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. [2018-11-22 21:45:31,345 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:45:31,346 INFO L168 Benchmark]: Boogie Preprocessor took 12.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:45:31,346 INFO L168 Benchmark]: RCFGBuilder took 174.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2018-11-22 21:45:31,346 INFO L168 Benchmark]: TraceAbstraction took 458.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. [2018-11-22 21:45:31,347 INFO L168 Benchmark]: Witness Printer took 40.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-22 21:45:31,349 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.02 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 958.0 MB in the beginning and 1.1 GB in the end (delta: -153.8 MB). Peak memory consumption was 30.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.12 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.43 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 174.73 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.7 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 458.61 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 50.5 MB). Peak memory consumption was 50.5 MB. Max. memory is 11.5 GB. * Witness Printer took 40.11 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 657]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 42 locations, 1 error locations. SAFE Result, 0.3s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 SDtfs, 28 SDslu, 75 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...