/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-fae578e [2019-12-18 15:43:56,391 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 15:43:56,394 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 15:43:56,412 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 15:43:56,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 15:43:56,414 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 15:43:56,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 15:43:56,430 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 15:43:56,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 15:43:56,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 15:43:56,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 15:43:56,436 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 15:43:56,436 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 15:43:56,439 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 15:43:56,441 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 15:43:56,442 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 15:43:56,444 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 15:43:56,446 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 15:43:56,448 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 15:43:56,453 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 15:43:56,455 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 15:43:56,458 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 15:43:56,461 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 15:43:56,462 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 15:43:56,466 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 15:43:56,470 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 15:43:56,472 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 15:43:56,473 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 15:43:56,473 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 15:43:56,475 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 15:43:56,475 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 15:43:56,476 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 15:43:56,476 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 15:43:56,476 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 15:43:56,478 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 15:43:56,478 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 15:43:56,479 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 [2019-12-18 15:43:56,492 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 15:43:56,492 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 15:43:56,494 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 15:43:56,494 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 15:43:56,494 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 15:43:56,494 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 15:43:56,494 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 15:43:56,495 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 15:43:56,495 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 15:43:56,495 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 15:43:56,495 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 15:43:56,495 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 15:43:56,496 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 15:43:56,496 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 15:43:56,496 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 15:43:56,496 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 15:43:56,496 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 15:43:56,497 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 15:43:56,497 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 15:43:56,497 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 15:43:56,497 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 15:43:56,497 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 15:43:56,498 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 15:43:56,498 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 15:43:56,498 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 15:43:56,498 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 15:43:56,498 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 15:43:56,499 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 15:43:56,499 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 15:43:56,782 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 15:43:56,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 15:43:56,803 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 15:43:56,807 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 15:43:56,807 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 15:43:56,808 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-18 15:43:56,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d26de6c5/5d99af4141d04fa186483081d84acad2/FLAG28a410081 [2019-12-18 15:43:57,371 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 15:43:57,371 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-18 15:43:57,388 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d26de6c5/5d99af4141d04fa186483081d84acad2/FLAG28a410081 [2019-12-18 15:43:57,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2d26de6c5/5d99af4141d04fa186483081d84acad2 [2019-12-18 15:43:57,711 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 15:43:57,713 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 15:43:57,714 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 15:43:57,714 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 15:43:57,718 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 15:43:57,719 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:43:57" (1/1) ... [2019-12-18 15:43:57,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48c1d697 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:57, skipping insertion in model container [2019-12-18 15:43:57,722 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 03:43:57" (1/1) ... [2019-12-18 15:43:57,728 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 15:43:57,773 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 15:43:58,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:43:58,247 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 15:43:58,297 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 15:43:58,372 INFO L208 MainTranslator]: Completed translation [2019-12-18 15:43:58,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58 WrapperNode [2019-12-18 15:43:58,373 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 15:43:58,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 15:43:58,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 15:43:58,374 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 15:43:58,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,420 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 15:43:58,420 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 15:43:58,421 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 15:43:58,421 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 15:43:58,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,431 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,431 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,439 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (1/1) ... [2019-12-18 15:43:58,444 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 15:43:58,445 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 15:43:58,445 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 15:43:58,445 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 15:43:58,446 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (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 [2019-12-18 15:43:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 15:43:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 15:43:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-12-18 15:43:58,516 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-12-18 15:43:58,516 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 15:43:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 15:43:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 15:43:58,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 15:43:58,517 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-12-18 15:43:58,518 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-12-18 15:43:58,520 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 15:43:58,650 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-12-18 15:43:58,655 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2019-12-18 15:43:58,883 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-12-18 15:43:58,893 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 15:43:58,893 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-18 15:43:58,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:43:58 BoogieIcfgContainer [2019-12-18 15:43:58,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 15:43:58,896 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 15:43:58,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 15:43:58,899 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 15:43:58,899 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 03:43:57" (1/3) ... [2019-12-18 15:43:58,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e169c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:43:58, skipping insertion in model container [2019-12-18 15:43:58,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 03:43:58" (2/3) ... [2019-12-18 15:43:58,901 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e169c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 03:43:58, skipping insertion in model container [2019-12-18 15:43:58,901 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 03:43:58" (3/3) ... [2019-12-18 15:43:58,902 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2019-12-18 15:43:58,913 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 15:43:58,913 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 15:43:58,920 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 15:43:58,921 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 15:43:58,960 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,961 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,961 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,961 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,962 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,962 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,962 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,963 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,963 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,964 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,964 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,964 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,964 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,965 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,965 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,965 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,966 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,966 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,967 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,967 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,967 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,967 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,968 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,968 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,969 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,969 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,969 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,969 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,970 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,970 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,974 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,974 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,975 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,975 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,975 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,980 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,981 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,981 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,981 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,987 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,987 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,987 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,988 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,988 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,994 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,994 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,995 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:58,995 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 15:43:59,033 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 15:43:59,054 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 15:43:59,054 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 15:43:59,054 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 15:43:59,054 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 15:43:59,055 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 15:43:59,055 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 15:43:59,055 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 15:43:59,055 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 15:43:59,071 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 96 transitions [2019-12-18 15:43:59,073 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-18 15:43:59,145 INFO L126 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-18 15:43:59,146 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:43:59,155 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 318 event pairs. 87/213 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-12-18 15:43:59,162 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-18 15:43:59,204 INFO L126 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-18 15:43:59,204 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 15:43:59,207 INFO L76 FinitePrefix]: Finished finitePrefix Result has 175 conditions, 130 events. 19/130 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 318 event pairs. 87/213 useless extension candidates. Maximal degree in co-relation 87. Up to 12 conditions per place. [2019-12-18 15:43:59,213 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2072 [2019-12-18 15:43:59,214 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 15:44:00,750 WARN L192 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-12-18 15:44:01,060 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6304 [2019-12-18 15:44:01,061 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-18 15:44:01,068 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 55 transitions [2019-12-18 15:44:01,396 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2019-12-18 15:44:01,399 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2019-12-18 15:44:01,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 15:44:01,408 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:44:01,409 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:44:01,409 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]=== [2019-12-18 15:44:01,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:44:01,417 INFO L82 PathProgramCache]: Analyzing trace with hash 2025569535, now seen corresponding path program 1 times [2019-12-18 15:44:01,426 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:44:01,427 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741781453] [2019-12-18 15:44:01,427 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:44:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:44:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:44:01,667 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741781453] [2019-12-18 15:44:01,669 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:44:01,669 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:44:01,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238404400] [2019-12-18 15:44:01,676 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:44:01,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:44:01,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:44:01,694 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:44:01,697 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2019-12-18 15:44:01,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:44:01,955 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2019-12-18 15:44:01,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:44:01,957 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-18 15:44:01,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:44:02,049 INFO L225 Difference]: With dead ends: 9727 [2019-12-18 15:44:02,049 INFO L226 Difference]: Without dead ends: 7325 [2019-12-18 15:44:02,051 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 [2019-12-18 15:44:02,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2019-12-18 15:44:02,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2019-12-18 15:44:02,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2019-12-18 15:44:02,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2019-12-18 15:44:02,435 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2019-12-18 15:44:02,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:44:02,440 INFO L462 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2019-12-18 15:44:02,441 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:44:02,441 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2019-12-18 15:44:02,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 15:44:02,443 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:44:02,443 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:44:02,444 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]=== [2019-12-18 15:44:02,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:44:02,445 INFO L82 PathProgramCache]: Analyzing trace with hash 952094142, now seen corresponding path program 1 times [2019-12-18 15:44:02,445 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:44:02,445 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105319118] [2019-12-18 15:44:02,445 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:44:02,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:44:02,579 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:44:02,580 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105319118] [2019-12-18 15:44:02,580 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:44:02,580 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:44:02,581 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096802035] [2019-12-18 15:44:02,582 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:44:02,582 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:44:02,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:44:02,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:44:02,583 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2019-12-18 15:44:02,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:44:02,691 INFO L93 Difference]: Finished difference Result 6872 states and 20348 transitions. [2019-12-18 15:44:02,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 15:44:02,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 15:44:02,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:44:02,735 INFO L225 Difference]: With dead ends: 6872 [2019-12-18 15:44:02,735 INFO L226 Difference]: Without dead ends: 6776 [2019-12-18 15:44:02,736 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 [2019-12-18 15:44:02,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2019-12-18 15:44:02,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4772. [2019-12-18 15:44:02,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4772 states. [2019-12-18 15:44:02,902 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 14625 transitions. [2019-12-18 15:44:02,902 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 14625 transitions. Word has length 10 [2019-12-18 15:44:02,902 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:44:02,903 INFO L462 AbstractCegarLoop]: Abstraction has 4772 states and 14625 transitions. [2019-12-18 15:44:02,903 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:44:02,903 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 14625 transitions. [2019-12-18 15:44:02,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 15:44:02,905 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:44:02,905 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:44:02,905 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]=== [2019-12-18 15:44:02,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:44:02,906 INFO L82 PathProgramCache]: Analyzing trace with hash -525587508, now seen corresponding path program 2 times [2019-12-18 15:44:02,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:44:02,906 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [365469769] [2019-12-18 15:44:02,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:44:02,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:44:02,947 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:44:02,948 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [365469769] [2019-12-18 15:44:02,948 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:44:02,948 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:44:02,948 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621932696] [2019-12-18 15:44:02,949 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 15:44:02,949 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:44:02,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 15:44:02,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 15:44:02,949 INFO L87 Difference]: Start difference. First operand 4772 states and 14625 transitions. Second operand 3 states. [2019-12-18 15:44:02,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:44:02,990 INFO L93 Difference]: Finished difference Result 2244 states and 5528 transitions. [2019-12-18 15:44:02,990 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 15:44:02,991 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 15:44:02,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:44:03,016 INFO L225 Difference]: With dead ends: 2244 [2019-12-18 15:44:03,017 INFO L226 Difference]: Without dead ends: 2180 [2019-12-18 15:44:03,017 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 [2019-12-18 15:44:03,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2019-12-18 15:44:03,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2019-12-18 15:44:03,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2019-12-18 15:44:03,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2019-12-18 15:44:03,067 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2019-12-18 15:44:03,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:44:03,068 INFO L462 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2019-12-18 15:44:03,068 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 15:44:03,068 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2019-12-18 15:44:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 15:44:03,069 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:44:03,070 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:44:03,070 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]=== [2019-12-18 15:44:03,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:44:03,070 INFO L82 PathProgramCache]: Analyzing trace with hash 2052037428, now seen corresponding path program 1 times [2019-12-18 15:44:03,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:44:03,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533462058] [2019-12-18 15:44:03,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:44:03,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:44:03,114 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:44:03,115 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533462058] [2019-12-18 15:44:03,115 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:44:03,115 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 15:44:03,116 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144713035] [2019-12-18 15:44:03,118 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 15:44:03,118 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:44:03,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 15:44:03,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 15:44:03,119 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2019-12-18 15:44:03,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:44:03,203 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2019-12-18 15:44:03,203 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:44:03,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-18 15:44:03,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:44:03,209 INFO L225 Difference]: With dead ends: 2507 [2019-12-18 15:44:03,209 INFO L226 Difference]: Without dead ends: 1814 [2019-12-18 15:44:03,209 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 [2019-12-18 15:44:03,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2019-12-18 15:44:03,247 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2019-12-18 15:44:03,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2019-12-18 15:44:03,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2019-12-18 15:44:03,305 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2019-12-18 15:44:03,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:44:03,306 INFO L462 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2019-12-18 15:44:03,306 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 15:44:03,306 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2019-12-18 15:44:03,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 15:44:03,308 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:44:03,308 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:44:03,308 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]=== [2019-12-18 15:44:03,309 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:44:03,309 INFO L82 PathProgramCache]: Analyzing trace with hash -428981579, now seen corresponding path program 1 times [2019-12-18 15:44:03,309 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:44:03,309 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024830482] [2019-12-18 15:44:03,310 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:44:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:44:03,385 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:44:03,386 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024830482] [2019-12-18 15:44:03,386 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:44:03,386 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:44:03,386 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1239099525] [2019-12-18 15:44:03,387 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:44:03,387 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:44:03,388 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:44:03,388 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:44:03,388 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2019-12-18 15:44:03,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:44:03,439 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2019-12-18 15:44:03,440 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:44:03,440 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-18 15:44:03,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:44:03,444 INFO L225 Difference]: With dead ends: 1734 [2019-12-18 15:44:03,444 INFO L226 Difference]: Without dead ends: 1508 [2019-12-18 15:44:03,444 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 [2019-12-18 15:44:03,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2019-12-18 15:44:03,471 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2019-12-18 15:44:03,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-12-18 15:44:03,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2019-12-18 15:44:03,475 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2019-12-18 15:44:03,475 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:44:03,476 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2019-12-18 15:44:03,476 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:44:03,476 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2019-12-18 15:44:03,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 15:44:03,477 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 15:44:03,477 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 15:44:03,478 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]=== [2019-12-18 15:44:03,478 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 15:44:03,478 INFO L82 PathProgramCache]: Analyzing trace with hash -1672493533, now seen corresponding path program 2 times [2019-12-18 15:44:03,478 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 15:44:03,479 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633765589] [2019-12-18 15:44:03,479 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 15:44:03,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 15:44:03,567 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 15:44:03,567 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633765589] [2019-12-18 15:44:03,568 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 15:44:03,568 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 15:44:03,568 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105005065] [2019-12-18 15:44:03,568 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 15:44:03,568 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 15:44:03,570 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 15:44:03,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 15:44:03,570 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2019-12-18 15:44:03,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 15:44:03,604 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2019-12-18 15:44:03,605 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 15:44:03,605 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-18 15:44:03,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 15:44:03,605 INFO L225 Difference]: With dead ends: 530 [2019-12-18 15:44:03,605 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 15:44:03,606 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 [2019-12-18 15:44:03,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 15:44:03,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 15:44:03,607 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 15:44:03,607 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 15:44:03,607 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-18 15:44:03,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 15:44:03,607 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 15:44:03,607 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 15:44:03,608 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 15:44:03,608 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 15:44:03,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 03:44:03 BasicIcfg [2019-12-18 15:44:03,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 15:44:03,617 INFO L168 Benchmark]: Toolchain (without parser) took 5901.86 ms. Allocated memory was 137.9 MB in the beginning and 297.8 MB in the end (delta: 159.9 MB). Free memory was 101.0 MB in the beginning and 173.6 MB in the end (delta: -72.7 MB). Peak memory consumption was 87.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:44:03,618 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-18 15:44:03,624 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.82 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 161.4 MB in the end (delta: -60.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-18 15:44:03,625 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 202.4 MB. Free memory was 161.4 MB in the beginning and 158.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-18 15:44:03,626 INFO L168 Benchmark]: Boogie Preprocessor took 24.06 ms. Allocated memory is still 202.4 MB. Free memory was 158.8 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 15:44:03,627 INFO L168 Benchmark]: RCFGBuilder took 449.91 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 136.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. [2019-12-18 15:44:03,628 INFO L168 Benchmark]: TraceAbstraction took 4717.47 ms. Allocated memory was 202.4 MB in the beginning and 297.8 MB in the end (delta: 95.4 MB). Free memory was 135.7 MB in the beginning and 173.6 MB in the end (delta: -37.9 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. [2019-12-18 15:44:03,641 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 658.82 ms. Allocated memory was 137.9 MB in the beginning and 202.4 MB in the end (delta: 64.5 MB). Free memory was 100.6 MB in the beginning and 161.4 MB in the end (delta: -60.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.94 ms. Allocated memory is still 202.4 MB. Free memory was 161.4 MB in the beginning and 158.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.06 ms. Allocated memory is still 202.4 MB. Free memory was 158.8 MB in the beginning and 157.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 449.91 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 136.4 MB in the end (delta: 21.1 MB). Peak memory consumption was 21.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4717.47 ms. Allocated memory was 202.4 MB in the beginning and 297.8 MB in the end (delta: 95.4 MB). Free memory was 135.7 MB in the beginning and 173.6 MB in the end (delta: -37.9 MB). Peak memory consumption was 57.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 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: 0.3s, 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: 4.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 461 SDtfs, 420 SDslu, 509 SDs, 0 SdLazy, 137 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s 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...