./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/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 9d4406c344918291b80fcb1a8e1837c6660ae09c ........................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 14:22:58,124 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 14:22:58,126 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 14:22:58,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 14:22:58,136 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 14:22:58,136 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 14:22:58,137 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 14:22:58,139 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 14:22:58,140 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 14:22:58,141 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 14:22:58,142 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 14:22:58,143 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 14:22:58,143 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 14:22:58,144 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 14:22:58,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 14:22:58,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 14:22:58,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 14:22:58,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 14:22:58,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 14:22:58,149 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 14:22:58,150 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 14:22:58,151 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 14:22:58,152 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 14:22:58,152 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 14:22:58,155 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 14:22:58,155 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 14:22:58,155 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 14:22:58,156 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 14:22:58,156 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 14:22:58,157 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 14:22:58,157 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 14:22:58,158 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 14:22:58,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 14:22:58,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 14:22:58,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 14:22:58,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 14:22:58,160 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 14:22:58,160 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 14:22:58,161 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 14:22:58,161 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 14:22:58,162 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 14:22:58,162 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-07 14:22:58,175 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 14:22:58,175 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 14:22:58,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 14:22:58,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 14:22:58,177 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 14:22:58,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 14:22:58,177 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 14:22:58,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 14:22:58,177 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 14:22:58,178 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 14:22:58,178 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 14:22:58,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 14:22:58,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 14:22:58,178 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 14:22:58,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 14:22:58,179 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 14:22:58,179 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 14:22:58,179 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 14:22:58,179 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 14:22:58,179 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 14:22:58,180 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 14:22:58,180 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 14:22:58,180 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 14:22:58,180 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 14:22:58,180 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 14:22:58,180 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 14:22:58,181 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 14:22:58,181 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 14:22:58,181 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 14:22:58,181 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/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 -> 9d4406c344918291b80fcb1a8e1837c6660ae09c [2019-12-07 14:22:58,304 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 14:22:58,311 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 14:22:58,313 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 14:22:58,314 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 14:22:58,314 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 14:22:58,315 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/../../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2019-12-07 14:22:58,351 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/data/1442b275a/abf352d992a34aec9862af894d4aaf94/FLAG29fd5652c [2019-12-07 14:22:58,754 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 14:22:58,755 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2019-12-07 14:22:58,766 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/data/1442b275a/abf352d992a34aec9862af894d4aaf94/FLAG29fd5652c [2019-12-07 14:22:58,774 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/data/1442b275a/abf352d992a34aec9862af894d4aaf94 [2019-12-07 14:22:58,776 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 14:22:58,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 14:22:58,777 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:58,778 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 14:22:58,780 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 14:22:58,780 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:58" (1/1) ... [2019-12-07 14:22:58,782 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@25bf35b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:58, skipping insertion in model container [2019-12-07 14:22:58,782 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 02:22:58" (1/1) ... [2019-12-07 14:22:58,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 14:22:58,814 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 14:22:59,022 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:59,030 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 14:22:59,059 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 14:22:59,102 INFO L208 MainTranslator]: Completed translation [2019-12-07 14:22:59,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59 WrapperNode [2019-12-07 14:22:59,102 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 14:22:59,103 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:59,103 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 14:22:59,103 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 14:22:59,108 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,118 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,133 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 14:22:59,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 14:22:59,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 14:22:59,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 14:22:59,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,141 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,141 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... [2019-12-07 14:22:59,149 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 14:22:59,149 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 14:22:59,149 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 14:22:59,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 14:22:59,150 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/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 [2019-12-07 14:22:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-07 14:22:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-07 14:22:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 14:22:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 14:22:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 14:22:59,191 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 14:22:59,191 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 14:22:59,192 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-07 14:22:59,266 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_w_returnLabel [2019-12-07 14:22:59,290 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_r_returnLabel [2019-12-07 14:22:59,332 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 14:22:59,332 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-07 14:22:59,333 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:59 BoogieIcfgContainer [2019-12-07 14:22:59,333 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 14:22:59,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 14:22:59,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 14:22:59,335 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 14:22:59,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 02:22:58" (1/3) ... [2019-12-07 14:22:59,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce7b04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:59, skipping insertion in model container [2019-12-07 14:22:59,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 02:22:59" (2/3) ... [2019-12-07 14:22:59,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ce7b04d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 02:22:59, skipping insertion in model container [2019-12-07 14:22:59,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:59" (3/3) ... [2019-12-07 14:22:59,338 INFO L109 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2019-12-07 14:22:59,344 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-07 14:22:59,344 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 14:22:59,348 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 14:22:59,349 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-07 14:22:59,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:22:59,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:22:59,362 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:22:59,362 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:22:59,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:22:59,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-07 14:22:59,373 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-07 14:22:59,387 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 14:22:59,387 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 14:22:59,387 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 14:22:59,387 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 14:22:59,387 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 14:22:59,387 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 14:22:59,388 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 14:22:59,388 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 14:22:59,395 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 40 places, 37 transitions [2019-12-07 14:22:59,396 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions [2019-12-07 14:22:59,416 INFO L134 PetriNetUnfolder]: 1/36 cut-off events. [2019-12-07 14:22:59,416 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 14:22:59,420 INFO L76 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs. 3/37 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2019-12-07 14:22:59,422 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 40 places, 37 transitions [2019-12-07 14:22:59,429 INFO L134 PetriNetUnfolder]: 1/36 cut-off events. [2019-12-07 14:22:59,429 INFO L135 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-07 14:22:59,430 INFO L76 FinitePrefix]: Finished finitePrefix Result has 40 conditions, 36 events. 1/36 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 17 event pairs. 3/37 useless extension candidates. Maximal degree in co-relation 24. Up to 2 conditions per place. [2019-12-07 14:22:59,430 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 190 [2019-12-07 14:22:59,431 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-07 14:22:59,877 INFO L206 etLargeBlockEncoding]: Checked pairs total: 397 [2019-12-07 14:22:59,877 INFO L214 etLargeBlockEncoding]: Total number of compositions: 27 [2019-12-07 14:22:59,880 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 12 places, 10 transitions [2019-12-07 14:22:59,885 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 20 states. [2019-12-07 14:22:59,887 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2019-12-07 14:22:59,892 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 14:22:59,892 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:22:59,892 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 14:22:59,893 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:22:59,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:22:59,897 INFO L82 PathProgramCache]: Analyzing trace with hash 136577883, now seen corresponding path program 1 times [2019-12-07 14:22:59,903 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:22:59,903 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065444559] [2019-12-07 14:22:59,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:22:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:23:00,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:23:00,011 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065444559] [2019-12-07 14:23:00,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:23:00,012 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 14:23:00,012 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [571949618] [2019-12-07 14:23:00,015 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:23:00,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:23:00,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:23:00,025 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:23:00,026 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2019-12-07 14:23:00,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:23:00,046 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2019-12-07 14:23:00,047 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:23:00,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-07 14:23:00,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:23:00,054 INFO L225 Difference]: With dead ends: 21 [2019-12-07 14:23:00,054 INFO L226 Difference]: Without dead ends: 10 [2019-12-07 14:23:00,056 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:23:00,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-07 14:23:00,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-07 14:23:00,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-07 14:23:00,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2019-12-07 14:23:00,078 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 5 [2019-12-07 14:23:00,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:23:00,078 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2019-12-07 14:23:00,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:23:00,078 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2019-12-07 14:23:00,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 14:23:00,079 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:23:00,079 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:23:00,079 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:23:00,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:23:00,080 INFO L82 PathProgramCache]: Analyzing trace with hash -1916698592, now seen corresponding path program 1 times [2019-12-07 14:23:00,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:23:00,080 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1369837734] [2019-12-07 14:23:00,080 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:23:00,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:23:00,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:23:00,123 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1369837734] [2019-12-07 14:23:00,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:23:00,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:23:00,124 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995310159] [2019-12-07 14:23:00,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 14:23:00,125 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:23:00,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 14:23:00,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 14:23:00,125 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2019-12-07 14:23:00,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:23:00,130 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2019-12-07 14:23:00,131 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 14:23:00,131 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-07 14:23:00,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:23:00,131 INFO L225 Difference]: With dead ends: 10 [2019-12-07 14:23:00,131 INFO L226 Difference]: Without dead ends: 9 [2019-12-07 14:23:00,132 INFO L630 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 [2019-12-07 14:23:00,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-12-07 14:23:00,133 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-12-07 14:23:00,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-12-07 14:23:00,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-12-07 14:23:00,133 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-12-07 14:23:00,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:23:00,134 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-12-07 14:23:00,134 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 14:23:00,134 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-12-07 14:23:00,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-07 14:23:00,134 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 14:23:00,134 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-07 14:23:00,134 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 14:23:00,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 14:23:00,135 INFO L82 PathProgramCache]: Analyzing trace with hash -1891674152, now seen corresponding path program 2 times [2019-12-07 14:23:00,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 14:23:00,135 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246757577] [2019-12-07 14:23:00,135 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 14:23:00,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 14:23:00,170 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 14:23:00,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246757577] [2019-12-07 14:23:00,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 14:23:00,171 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 14:23:00,171 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194683253] [2019-12-07 14:23:00,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 14:23:00,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 14:23:00,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 14:23:00,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:23:00,172 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2019-12-07 14:23:00,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 14:23:00,177 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2019-12-07 14:23:00,178 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-07 14:23:00,178 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2019-12-07 14:23:00,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 14:23:00,178 INFO L225 Difference]: With dead ends: 5 [2019-12-07 14:23:00,178 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 14:23:00,179 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 14:23:00,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 14:23:00,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 14:23:00,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 14:23:00,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 14:23:00,179 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2019-12-07 14:23:00,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 14:23:00,179 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 14:23:00,180 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 14:23:00,180 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 14:23:00,180 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 14:23:00,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 02:23:00 BasicIcfg [2019-12-07 14:23:00,182 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 14:23:00,183 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 14:23:00,183 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 14:23:00,183 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 14:23:00,183 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 02:22:59" (3/4) ... [2019-12-07 14:23:00,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 14:23:00,190 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-12-07 14:23:00,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-12-07 14:23:00,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-12-07 14:23:00,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-12-07 14:23:00,220 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_dc7362a0-e1c2-422d-9246-c77a10dd0052/bin/uautomizer/witness.graphml [2019-12-07 14:23:00,220 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 14:23:00,222 INFO L168 Benchmark]: Toolchain (without parser) took 1444.36 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 939.3 MB in the beginning and 905.6 MB in the end (delta: 33.7 MB). Peak memory consumption was 131.8 MB. Max. memory is 11.5 GB. [2019-12-07 14:23:00,222 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:23:00,223 INFO L168 Benchmark]: CACSL2BoogieTranslator took 324.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-12-07 14:23:00,223 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:23:00,223 INFO L168 Benchmark]: Boogie Preprocessor took 15.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 14:23:00,224 INFO L168 Benchmark]: RCFGBuilder took 183.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. [2019-12-07 14:23:00,224 INFO L168 Benchmark]: TraceAbstraction took 849.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.0 MB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. [2019-12-07 14:23:00,225 INFO L168 Benchmark]: Witness Printer took 37.57 ms. Allocated memory is still 1.1 GB. Free memory was 911.0 MB in the beginning and 905.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 14:23:00,227 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 960.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 324.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 98.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -132.0 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 30.12 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.87 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 183.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 23.7 MB). Peak memory consumption was 23.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 849.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 911.0 MB in the end (delta: 131.2 MB). Peak memory consumption was 131.2 MB. Max. memory is 11.5 GB. * Witness Printer took 37.57 ms. Allocated memory is still 1.1 GB. Free memory was 911.0 MB in the beginning and 905.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 0.4s, 40 ProgramPointsBefore, 12 ProgramPointsAfterwards, 37 TransitionsBefore, 10 TransitionsAfterwards, 190 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 17 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 1 ChoiceCompositions, 96 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 3 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 397 CheckedPairsTotal, 27 TotalNumberOfCompositions - PositiveResult [Line: 695]: 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 2 procedures, 37 locations, 1 error locations. Result: SAFE, OverallTime: 0.7s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 7 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 144 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...