/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:48:11,070 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:48:11,072 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:48:11,087 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:48:11,087 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:48:11,088 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:48:11,090 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:48:11,091 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:48:11,093 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:48:11,094 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:48:11,095 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:48:11,096 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:48:11,096 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:48:11,097 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:48:11,098 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:48:11,099 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:48:11,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:48:11,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:48:11,102 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:48:11,104 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:48:11,105 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:48:11,106 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:48:11,107 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:48:11,108 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:48:11,110 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 00:48:11,113 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:48:11,114 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:48:11,114 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:48:11,115 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:48:11,116 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:48:11,116 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:48:11,117 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:48:11,117 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:48:11,117 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:48:11,118 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:48:11,119 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:48:11,119 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 00:48:11,139 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:48:11,139 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:48:11,141 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:48:11,141 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:48:11,141 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:48:11,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:48:11,142 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:48:11,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:48:11,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:48:11,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:48:11,143 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:48:11,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:48:11,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:48:11,144 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:48:11,144 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:48:11,144 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:48:11,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:48:11,145 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:48:11,145 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:48:11,145 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:48:11,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:48:11,146 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:48:11,146 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:48:11,146 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:48:11,146 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:48:11,147 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:48:11,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:48:11,147 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:48:11,147 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:48:11,415 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:48:11,427 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:48:11,430 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:48:11,431 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:48:11,431 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:48:11,432 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-27 00:48:11,496 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432ba2f2c/3e0bf21b805945c4ac0ab1995e446923/FLAG1d82a04da [2019-12-27 00:48:12,085 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:48:12,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-27 00:48:12,097 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432ba2f2c/3e0bf21b805945c4ac0ab1995e446923/FLAG1d82a04da [2019-12-27 00:48:12,390 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/432ba2f2c/3e0bf21b805945c4ac0ab1995e446923 [2019-12-27 00:48:12,398 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:48:12,400 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:48:12,401 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:48:12,401 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:48:12,405 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:48:12,406 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:48:12" (1/1) ... [2019-12-27 00:48:12,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bea512c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:12, skipping insertion in model container [2019-12-27 00:48:12,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:48:12" (1/1) ... [2019-12-27 00:48:12,417 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:48:12,465 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:48:12,969 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:48:12,984 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:48:13,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:48:13,133 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:48:13,133 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13 WrapperNode [2019-12-27 00:48:13,134 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:48:13,134 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:48:13,134 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:48:13,135 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:48:13,143 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,160 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:48:13,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:48:13,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:48:13,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:48:13,191 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,191 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,194 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,194 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,200 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,202 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,204 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... [2019-12-27 00:48:13,207 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:48:13,207 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:48:13,208 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:48:13,208 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:48:13,209 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-12-27 00:48:13,275 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 00:48:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:48:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-12-27 00:48:13,276 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-12-27 00:48:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:48:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:48:13,276 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:48:13,277 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:48:13,277 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-12-27 00:48:13,277 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-12-27 00:48:13,279 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:48:13,466 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-12-27 00:48:13,470 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2019-12-27 00:48:13,636 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-12-27 00:48:13,650 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:48:13,650 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-27 00:48:13,651 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:48:13 BoogieIcfgContainer [2019-12-27 00:48:13,651 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:48:13,653 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:48:13,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:48:13,657 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:48:13,657 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:48:12" (1/3) ... [2019-12-27 00:48:13,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541a2464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:48:13, skipping insertion in model container [2019-12-27 00:48:13,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:13" (2/3) ... [2019-12-27 00:48:13,658 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@541a2464 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:48:13, skipping insertion in model container [2019-12-27 00:48:13,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:48:13" (3/3) ... [2019-12-27 00:48:13,660 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2019-12-27 00:48:13,671 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:48:13,671 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:48:13,679 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 00:48:13,680 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:48:13,709 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,709 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,709 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,710 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,710 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,711 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,711 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,711 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,712 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,712 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,712 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,713 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,713 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,713 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,714 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,714 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,714 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,715 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,715 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,715 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,716 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,716 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,716 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,717 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,717 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,717 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,718 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,718 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,718 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,718 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,722 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,722 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,722 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,723 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,723 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,727 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,728 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,728 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,728 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,733 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,733 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,734 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,734 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,734 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,736 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,737 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,737 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,737 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:13,786 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-27 00:48:13,808 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:48:13,808 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:48:13,808 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:48:13,809 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:48:13,809 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:48:13,809 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:48:13,809 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:48:13,809 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:48:13,829 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 96 transitions [2019-12-27 00:48:13,830 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-27 00:48:13,915 INFO L132 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-27 00:48:13,916 INFO L133 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2019-12-27 00:48:13,932 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 318 event pairs. 0/126 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-12-27 00:48:13,939 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-27 00:48:13,993 INFO L132 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-27 00:48:13,994 INFO L133 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2019-12-27 00:48:13,996 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 318 event pairs. 0/126 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-12-27 00:48:14,001 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2072 [2019-12-27 00:48:14,002 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:48:15,571 WARN L192 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-12-27 00:48:15,689 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-12-27 00:48:15,848 WARN L192 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-12-27 00:48:15,955 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6304 [2019-12-27 00:48:15,955 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-27 00:48:15,959 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 55 transitions [2019-12-27 00:48:16,309 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2019-12-27 00:48:16,312 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2019-12-27 00:48:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 00:48:16,323 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:16,324 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:16,325 INFO L410 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:16,333 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:16,334 INFO L82 PathProgramCache]: Analyzing trace with hash 2025569535, now seen corresponding path program 1 times [2019-12-27 00:48:16,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:16,349 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1802763828] [2019-12-27 00:48:16,350 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:16,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:16,664 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:16,665 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1802763828] [2019-12-27 00:48:16,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:16,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:16,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991730862] [2019-12-27 00:48:16,673 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:48:16,673 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:16,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:48:16,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:48:16,692 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2019-12-27 00:48:16,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:16,962 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2019-12-27 00:48:16,962 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:48:16,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-27 00:48:16,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:17,072 INFO L225 Difference]: With dead ends: 9727 [2019-12-27 00:48:17,072 INFO L226 Difference]: Without dead ends: 7325 [2019-12-27 00:48:17,074 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:17,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2019-12-27 00:48:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2019-12-27 00:48:17,327 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2019-12-27 00:48:17,415 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2019-12-27 00:48:17,417 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2019-12-27 00:48:17,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:17,417 INFO L462 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2019-12-27 00:48:17,417 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:48:17,417 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2019-12-27 00:48:17,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:48:17,419 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:17,420 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:17,420 INFO L410 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:17,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:17,420 INFO L82 PathProgramCache]: Analyzing trace with hash 952094142, now seen corresponding path program 1 times [2019-12-27 00:48:17,421 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:17,421 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895020275] [2019-12-27 00:48:17,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:17,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:17,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:17,505 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895020275] [2019-12-27 00:48:17,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:17,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:17,506 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1647239133] [2019-12-27 00:48:17,508 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:48:17,508 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:17,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:48:17,509 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:48:17,509 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2019-12-27 00:48:17,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:17,661 INFO L93 Difference]: Finished difference Result 6872 states and 20348 transitions. [2019-12-27 00:48:17,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 00:48:17,662 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 00:48:17,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:17,718 INFO L225 Difference]: With dead ends: 6872 [2019-12-27 00:48:17,718 INFO L226 Difference]: Without dead ends: 6776 [2019-12-27 00:48:17,720 INFO L631 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 [2019-12-27 00:48:17,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2019-12-27 00:48:17,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4772. [2019-12-27 00:48:17,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4772 states. [2019-12-27 00:48:17,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 14625 transitions. [2019-12-27 00:48:17,902 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 14625 transitions. Word has length 10 [2019-12-27 00:48:17,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:17,903 INFO L462 AbstractCegarLoop]: Abstraction has 4772 states and 14625 transitions. [2019-12-27 00:48:17,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:48:17,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 14625 transitions. [2019-12-27 00:48:17,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 00:48:17,910 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:17,910 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:17,910 INFO L410 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:17,910 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:17,911 INFO L82 PathProgramCache]: Analyzing trace with hash -525587508, now seen corresponding path program 2 times [2019-12-27 00:48:17,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:17,911 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [422664169] [2019-12-27 00:48:17,911 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:17,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:17,989 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [422664169] [2019-12-27 00:48:17,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:17,991 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:17,991 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2118399832] [2019-12-27 00:48:17,991 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:17,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:17,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:17,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:17,992 INFO L87 Difference]: Start difference. First operand 4772 states and 14625 transitions. Second operand 3 states. [2019-12-27 00:48:18,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:18,020 INFO L93 Difference]: Finished difference Result 2244 states and 5528 transitions. [2019-12-27 00:48:18,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:18,021 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 00:48:18,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:18,030 INFO L225 Difference]: With dead ends: 2244 [2019-12-27 00:48:18,030 INFO L226 Difference]: Without dead ends: 2180 [2019-12-27 00:48:18,031 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 [2019-12-27 00:48:18,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2019-12-27 00:48:18,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2019-12-27 00:48:18,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2019-12-27 00:48:18,083 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2019-12-27 00:48:18,083 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2019-12-27 00:48:18,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:18,084 INFO L462 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2019-12-27 00:48:18,084 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:18,084 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2019-12-27 00:48:18,085 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 00:48:18,085 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:18,085 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:18,085 INFO L410 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:18,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:18,086 INFO L82 PathProgramCache]: Analyzing trace with hash 2052037428, now seen corresponding path program 1 times [2019-12-27 00:48:18,086 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:18,087 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190392587] [2019-12-27 00:48:18,087 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:18,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:18,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:18,172 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190392587] [2019-12-27 00:48:18,172 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:18,174 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:18,174 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768558250] [2019-12-27 00:48:18,175 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 00:48:18,175 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:18,175 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 00:48:18,176 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 00:48:18,176 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2019-12-27 00:48:18,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:18,276 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2019-12-27 00:48:18,277 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:48:18,277 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-27 00:48:18,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:18,294 INFO L225 Difference]: With dead ends: 2507 [2019-12-27 00:48:18,295 INFO L226 Difference]: Without dead ends: 1814 [2019-12-27 00:48:18,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:18,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2019-12-27 00:48:18,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2019-12-27 00:48:18,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2019-12-27 00:48:18,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2019-12-27 00:48:18,424 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2019-12-27 00:48:18,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:18,426 INFO L462 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2019-12-27 00:48:18,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 00:48:18,426 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2019-12-27 00:48:18,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:48:18,428 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:18,428 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:18,428 INFO L410 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:18,428 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:18,429 INFO L82 PathProgramCache]: Analyzing trace with hash -428981579, now seen corresponding path program 1 times [2019-12-27 00:48:18,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:18,433 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242724233] [2019-12-27 00:48:18,434 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:18,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:18,491 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:18,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242724233] [2019-12-27 00:48:18,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:18,492 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:48:18,492 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2014687913] [2019-12-27 00:48:18,492 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:18,492 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:18,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:18,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:18,493 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2019-12-27 00:48:18,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:18,526 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2019-12-27 00:48:18,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:48:18,527 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-27 00:48:18,527 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:18,531 INFO L225 Difference]: With dead ends: 1734 [2019-12-27 00:48:18,531 INFO L226 Difference]: Without dead ends: 1508 [2019-12-27 00:48:18,531 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:18,538 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2019-12-27 00:48:18,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2019-12-27 00:48:18,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-12-27 00:48:18,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2019-12-27 00:48:18,562 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2019-12-27 00:48:18,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:18,562 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2019-12-27 00:48:18,562 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:18,562 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2019-12-27 00:48:18,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:48:18,564 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:18,564 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:18,564 INFO L410 AbstractCegarLoop]: === Iteration 6 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-27 00:48:18,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:18,565 INFO L82 PathProgramCache]: Analyzing trace with hash -1672493533, now seen corresponding path program 2 times [2019-12-27 00:48:18,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:18,565 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299322227] [2019-12-27 00:48:18,565 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:18,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:18,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:18,621 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299322227] [2019-12-27 00:48:18,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:18,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 00:48:18,622 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400330914] [2019-12-27 00:48:18,622 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 00:48:18,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:18,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 00:48:18,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:18,624 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2019-12-27 00:48:18,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:18,654 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2019-12-27 00:48:18,654 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 00:48:18,654 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-27 00:48:18,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:18,655 INFO L225 Difference]: With dead ends: 530 [2019-12-27 00:48:18,655 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:48:18,655 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 00:48:18,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:48:18,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:48:18,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:48:18,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:48:18,656 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-27 00:48:18,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:18,657 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:48:18,657 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 00:48:18,657 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:48:18,657 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:48:18,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:48:18 BasicIcfg [2019-12-27 00:48:18,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:48:18,663 INFO L168 Benchmark]: Toolchain (without parser) took 6263.26 ms. Allocated memory was 144.7 MB in the beginning and 295.2 MB in the end (delta: 150.5 MB). Free memory was 101.1 MB in the beginning and 165.1 MB in the end (delta: -64.1 MB). Peak memory consumption was 86.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:18,664 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 00:48:18,665 INFO L168 Benchmark]: CACSL2BoogieTranslator took 732.71 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 157.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:18,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.40 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:18,667 INFO L168 Benchmark]: Boogie Preprocessor took 24.16 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:18,667 INFO L168 Benchmark]: RCFGBuilder took 444.18 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 132.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:18,668 INFO L168 Benchmark]: TraceAbstraction took 5008.10 ms. Allocated memory was 201.3 MB in the beginning and 295.2 MB in the end (delta: 93.8 MB). Free memory was 132.7 MB in the beginning and 165.1 MB in the end (delta: -32.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:18,672 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 144.7 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 732.71 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 100.7 MB in the beginning and 157.9 MB in the end (delta: -57.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.40 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.16 ms. Allocated memory is still 201.3 MB. Free memory was 155.8 MB in the beginning and 154.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 444.18 ms. Allocated memory is still 201.3 MB. Free memory was 154.5 MB in the beginning and 132.7 MB in the end (delta: 21.8 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5008.10 ms. Allocated memory was 201.3 MB in the beginning and 295.2 MB in the end (delta: 93.8 MB). Free memory was 132.7 MB in the beginning and 165.1 MB in the end (delta: -32.4 MB). Peak memory consumption was 61.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 95 ProgramPointsBefore, 55 ProgramPointsAfterwards, 96 TransitionsBefore, 55 TransitionsAfterwards, 2072 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 729 VarBasedMoverChecksPositive, 49 VarBasedMoverChecksNegative, 28 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 6304 CheckedPairsTotal, 41 TotalNumberOfCompositions - PositiveResult [Line: 697]: 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, 66 locations, 1 error locations. Result: SAFE, OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 461 SDtfs, 420 SDslu, 509 SDs, 0 SdLazy, 137 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4772occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 6 MinimizatonAttempts, 5459 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 78 NumberOfCodeBlocks, 78 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 72 ConstructedInterpolants, 0 QuantifiedInterpolants, 2204 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...