/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 20:51:45,624 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 20:51:45,627 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 20:51:45,639 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 20:51:45,640 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 20:51:45,641 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 20:51:45,642 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 20:51:45,644 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 20:51:45,646 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 20:51:45,647 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 20:51:45,648 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 20:51:45,649 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 20:51:45,649 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 20:51:45,650 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 20:51:45,651 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 20:51:45,652 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 20:51:45,653 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 20:51:45,654 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 20:51:45,656 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 20:51:45,658 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 20:51:45,660 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 20:51:45,661 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 20:51:45,662 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 20:51:45,663 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 20:51:45,665 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 20:51:45,668 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 20:51:45,669 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 20:51:45,670 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 20:51:45,671 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 20:51:45,672 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 20:51:45,672 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 20:51:45,673 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 20:51:45,673 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 20:51:45,673 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 20:51:45,674 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 20:51:45,675 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 20:51:45,676 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 20:51:45,691 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 20:51:45,692 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 20:51:45,693 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 20:51:45,693 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 20:51:45,693 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 20:51:45,693 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 20:51:45,694 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 20:51:45,694 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 20:51:45,694 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 20:51:45,694 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 20:51:45,694 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 20:51:45,695 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 20:51:45,695 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 20:51:45,695 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 20:51:45,695 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 20:51:45,695 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 20:51:45,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 20:51:45,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 20:51:45,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 20:51:45,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 20:51:45,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 20:51:45,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:51:45,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 20:51:45,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 20:51:45,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 20:51:45,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 20:51:45,698 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 20:51:45,698 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 20:51:45,698 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 20:51:45,698 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 20:51:46,012 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 20:51:46,025 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 20:51:46,028 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 20:51:46,030 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 20:51:46,030 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 20:51:46,031 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-26 20:51:46,088 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14d19ba3/77fc388ecc434f2e9b9c9aaaf7f29da5/FLAG671401c6a [2019-12-26 20:51:46,636 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 20:51:46,636 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-26 20:51:46,649 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14d19ba3/77fc388ecc434f2e9b9c9aaaf7f29da5/FLAG671401c6a [2019-12-26 20:51:46,936 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b14d19ba3/77fc388ecc434f2e9b9c9aaaf7f29da5 [2019-12-26 20:51:46,947 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 20:51:46,949 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 20:51:46,950 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 20:51:46,950 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 20:51:46,954 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 20:51:46,955 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:51:46" (1/1) ... [2019-12-26 20:51:46,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@343c1360 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:46, skipping insertion in model container [2019-12-26 20:51:46,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:51:46" (1/1) ... [2019-12-26 20:51:46,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 20:51:47,019 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 20:51:47,520 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:51:47,532 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 20:51:47,569 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:51:47,642 INFO L208 MainTranslator]: Completed translation [2019-12-26 20:51:47,642 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47 WrapperNode [2019-12-26 20:51:47,643 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 20:51:47,643 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 20:51:47,643 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 20:51:47,644 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 20:51:47,653 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,670 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,692 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 20:51:47,692 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 20:51:47,692 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 20:51:47,692 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 20:51:47,703 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,707 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,713 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,716 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (1/1) ... [2019-12-26 20:51:47,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 20:51:47,721 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 20:51:47,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 20:51:47,722 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 20:51:47,723 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (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 [2019-12-26 20:51:47,794 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-26 20:51:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 20:51:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-12-26 20:51:47,795 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-12-26 20:51:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 20:51:47,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 20:51:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 20:51:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 20:51:47,796 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-12-26 20:51:47,796 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-12-26 20:51:47,797 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 20:51:47,931 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-12-26 20:51:47,936 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2019-12-26 20:51:48,178 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-12-26 20:51:48,187 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 20:51:48,188 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-26 20:51:48,189 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:51:48 BoogieIcfgContainer [2019-12-26 20:51:48,189 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 20:51:48,190 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 20:51:48,191 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 20:51:48,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 20:51:48,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 08:51:46" (1/3) ... [2019-12-26 20:51:48,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb34f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:51:48, skipping insertion in model container [2019-12-26 20:51:48,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:47" (2/3) ... [2019-12-26 20:51:48,199 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bb34f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:51:48, skipping insertion in model container [2019-12-26 20:51:48,200 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:51:48" (3/3) ... [2019-12-26 20:51:48,201 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2019-12-26 20:51:48,210 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 20:51:48,210 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 20:51:48,217 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-26 20:51:48,218 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 20:51:48,261 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,262 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,263 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,263 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,263 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,264 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,264 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,265 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,265 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,266 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,266 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,266 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,266 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,267 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,267 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,267 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,269 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,269 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,270 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,270 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,271 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,271 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,272 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,272 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,273 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,273 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,273 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,273 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,274 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,274 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,279 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,280 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,280 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,280 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,281 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,299 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,301 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,301 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,301 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,306 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,306 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,307 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,307 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,307 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,312 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,312 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,312 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,313 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:48,353 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-26 20:51:48,371 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:51:48,371 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:51:48,371 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:51:48,371 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:51:48,371 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:51:48,371 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:51:48,372 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:51:48,372 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:51:48,388 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 96 transitions [2019-12-26 20:51:48,390 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-26 20:51:48,463 INFO L132 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-26 20:51:48,463 INFO L133 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2019-12-26 20:51:48,473 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. [2019-12-26 20:51:48,481 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-26 20:51:48,523 INFO L132 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-26 20:51:48,523 INFO L133 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2019-12-26 20:51:48,528 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. [2019-12-26 20:51:48,535 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2072 [2019-12-26 20:51:48,536 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:51:50,130 WARN L192 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-12-26 20:51:50,488 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6304 [2019-12-26 20:51:50,489 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-26 20:51:50,492 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 55 transitions [2019-12-26 20:51:50,819 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2019-12-26 20:51:50,822 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2019-12-26 20:51:50,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 20:51:50,832 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:50,833 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:50,834 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]=== [2019-12-26 20:51:50,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:50,843 INFO L82 PathProgramCache]: Analyzing trace with hash 2025569535, now seen corresponding path program 1 times [2019-12-26 20:51:50,857 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:50,857 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334654092] [2019-12-26 20:51:50,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:51,117 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:51,118 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334654092] [2019-12-26 20:51:51,119 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:51,119 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:51:51,120 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171292967] [2019-12-26 20:51:51,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:51:51,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:51,145 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:51:51,146 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:51:51,149 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2019-12-26 20:51:51,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:51,374 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2019-12-26 20:51:51,377 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-26 20:51:51,378 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-26 20:51:51,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:51,497 INFO L225 Difference]: With dead ends: 9727 [2019-12-26 20:51:51,497 INFO L226 Difference]: Without dead ends: 7325 [2019-12-26 20:51:51,499 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 [2019-12-26 20:51:51,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2019-12-26 20:51:51,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2019-12-26 20:51:51,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2019-12-26 20:51:51,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2019-12-26 20:51:51,864 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2019-12-26 20:51:51,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:51,865 INFO L462 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2019-12-26 20:51:51,865 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:51:51,865 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2019-12-26 20:51:51,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 20:51:51,867 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:51,867 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:51,867 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]=== [2019-12-26 20:51:51,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:51,868 INFO L82 PathProgramCache]: Analyzing trace with hash 952094142, now seen corresponding path program 1 times [2019-12-26 20:51:51,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:51,868 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154324296] [2019-12-26 20:51:51,869 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:51,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:51,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:51,955 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154324296] [2019-12-26 20:51:51,955 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:51,955 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:51:51,956 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107887727] [2019-12-26 20:51:51,957 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:51:51,957 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:51,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:51:51,958 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:51:51,958 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2019-12-26 20:51:52,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:52,065 INFO L93 Difference]: Finished difference Result 6872 states and 20348 transitions. [2019-12-26 20:51:52,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-26 20:51:52,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-26 20:51:52,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:52,119 INFO L225 Difference]: With dead ends: 6872 [2019-12-26 20:51:52,119 INFO L226 Difference]: Without dead ends: 6776 [2019-12-26 20:51:52,120 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 [2019-12-26 20:51:52,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2019-12-26 20:51:52,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4772. [2019-12-26 20:51:52,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4772 states. [2019-12-26 20:51:52,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 14625 transitions. [2019-12-26 20:51:52,400 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 14625 transitions. Word has length 10 [2019-12-26 20:51:52,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:52,400 INFO L462 AbstractCegarLoop]: Abstraction has 4772 states and 14625 transitions. [2019-12-26 20:51:52,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:51:52,401 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 14625 transitions. [2019-12-26 20:51:52,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-26 20:51:52,402 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:52,403 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:52,403 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]=== [2019-12-26 20:51:52,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:52,403 INFO L82 PathProgramCache]: Analyzing trace with hash -525587508, now seen corresponding path program 2 times [2019-12-26 20:51:52,404 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:52,404 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476437304] [2019-12-26 20:51:52,404 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:52,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:52,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:52,453 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476437304] [2019-12-26 20:51:52,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:52,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:51:52,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [424119691] [2019-12-26 20:51:52,454 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:51:52,454 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:52,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:51:52,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:52,456 INFO L87 Difference]: Start difference. First operand 4772 states and 14625 transitions. Second operand 3 states. [2019-12-26 20:51:52,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:52,505 INFO L93 Difference]: Finished difference Result 2244 states and 5528 transitions. [2019-12-26 20:51:52,505 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:51:52,506 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-26 20:51:52,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:52,531 INFO L225 Difference]: With dead ends: 2244 [2019-12-26 20:51:52,532 INFO L226 Difference]: Without dead ends: 2180 [2019-12-26 20:51:52,532 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 [2019-12-26 20:51:52,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2019-12-26 20:51:52,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2019-12-26 20:51:52,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2019-12-26 20:51:52,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2019-12-26 20:51:52,599 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2019-12-26 20:51:52,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:52,600 INFO L462 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2019-12-26 20:51:52,600 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:51:52,600 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2019-12-26 20:51:52,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-26 20:51:52,601 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:52,601 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:52,602 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]=== [2019-12-26 20:51:52,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:52,602 INFO L82 PathProgramCache]: Analyzing trace with hash 2052037428, now seen corresponding path program 1 times [2019-12-26 20:51:52,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:52,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229020949] [2019-12-26 20:51:52,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:52,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:52,676 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:52,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229020949] [2019-12-26 20:51:52,677 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:52,677 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:51:52,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1331236629] [2019-12-26 20:51:52,680 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-26 20:51:52,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:52,681 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-26 20:51:52,681 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-26 20:51:52,681 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2019-12-26 20:51:52,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:52,748 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2019-12-26 20:51:52,749 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-26 20:51:52,749 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-26 20:51:52,749 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:52,754 INFO L225 Difference]: With dead ends: 2507 [2019-12-26 20:51:52,754 INFO L226 Difference]: Without dead ends: 1814 [2019-12-26 20:51:52,755 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 [2019-12-26 20:51:52,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2019-12-26 20:51:52,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2019-12-26 20:51:52,797 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2019-12-26 20:51:52,803 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2019-12-26 20:51:52,804 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2019-12-26 20:51:52,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:52,807 INFO L462 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2019-12-26 20:51:52,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-26 20:51:52,807 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2019-12-26 20:51:52,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-26 20:51:52,812 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:52,812 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:52,812 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]=== [2019-12-26 20:51:52,812 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:52,812 INFO L82 PathProgramCache]: Analyzing trace with hash -428981579, now seen corresponding path program 1 times [2019-12-26 20:51:52,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:52,818 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013762121] [2019-12-26 20:51:52,818 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:52,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:52,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:52,910 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013762121] [2019-12-26 20:51:52,910 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:52,910 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:51:52,910 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1572902624] [2019-12-26 20:51:52,911 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-26 20:51:52,911 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:52,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-26 20:51:52,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-26 20:51:52,912 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2019-12-26 20:51:52,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:52,950 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2019-12-26 20:51:52,951 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-26 20:51:52,951 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-26 20:51:52,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:52,955 INFO L225 Difference]: With dead ends: 1734 [2019-12-26 20:51:52,956 INFO L226 Difference]: Without dead ends: 1508 [2019-12-26 20:51:52,956 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 [2019-12-26 20:51:52,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2019-12-26 20:51:52,988 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2019-12-26 20:51:52,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-12-26 20:51:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2019-12-26 20:51:52,993 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2019-12-26 20:51:52,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:52,993 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2019-12-26 20:51:52,994 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-26 20:51:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2019-12-26 20:51:52,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-26 20:51:52,995 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:52,995 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:52,996 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]=== [2019-12-26 20:51:52,996 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:52,996 INFO L82 PathProgramCache]: Analyzing trace with hash -1672493533, now seen corresponding path program 2 times [2019-12-26 20:51:52,996 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:52,997 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023539829] [2019-12-26 20:51:52,997 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:53,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:53,040 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:53,040 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023539829] [2019-12-26 20:51:53,041 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:53,041 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-26 20:51:53,041 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [997588995] [2019-12-26 20:51:53,041 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-26 20:51:53,041 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:53,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-26 20:51:53,043 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-26 20:51:53,043 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2019-12-26 20:51:53,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:53,075 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2019-12-26 20:51:53,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-26 20:51:53,076 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-26 20:51:53,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:53,076 INFO L225 Difference]: With dead ends: 530 [2019-12-26 20:51:53,076 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 20:51:53,077 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 [2019-12-26 20:51:53,077 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 20:51:53,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 20:51:53,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 20:51:53,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 20:51:53,078 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-26 20:51:53,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:53,078 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 20:51:53,078 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-26 20:51:53,078 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 20:51:53,078 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 20:51:53,082 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 08:51:53 BasicIcfg [2019-12-26 20:51:53,083 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 20:51:53,085 INFO L168 Benchmark]: Toolchain (without parser) took 6136.45 ms. Allocated memory was 147.8 MB in the beginning and 274.7 MB in the end (delta: 126.9 MB). Free memory was 104.3 MB in the beginning and 70.6 MB in the end (delta: 33.7 MB). Peak memory consumption was 160.6 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:53,086 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-26 20:51:53,087 INFO L168 Benchmark]: CACSL2BoogieTranslator took 693.03 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 163.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:53,088 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 203.9 MB. Free memory was 163.1 MB in the beginning and 160.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:53,088 INFO L168 Benchmark]: Boogie Preprocessor took 28.84 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 159.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:53,089 INFO L168 Benchmark]: RCFGBuilder took 467.72 ms. Allocated memory is still 203.9 MB. Free memory was 159.4 MB in the beginning and 137.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:53,090 INFO L168 Benchmark]: TraceAbstraction took 4892.38 ms. Allocated memory was 203.9 MB in the beginning and 274.7 MB in the end (delta: 70.8 MB). Free memory was 137.3 MB in the beginning and 70.6 MB in the end (delta: 66.6 MB). Peak memory consumption was 137.4 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:53,094 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.8 MB. Free memory was 124.2 MB in the beginning and 124.0 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 693.03 ms. Allocated memory was 147.8 MB in the beginning and 203.9 MB in the end (delta: 56.1 MB). Free memory was 103.9 MB in the beginning and 163.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 48.57 ms. Allocated memory is still 203.9 MB. Free memory was 163.1 MB in the beginning and 160.7 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.84 ms. Allocated memory is still 203.9 MB. Free memory was 160.7 MB in the beginning and 159.4 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.72 ms. Allocated memory is still 203.9 MB. Free memory was 159.4 MB in the beginning and 137.9 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4892.38 ms. Allocated memory was 203.9 MB in the beginning and 274.7 MB in the end (delta: 70.8 MB). Free memory was 137.3 MB in the beginning and 70.6 MB in the end (delta: 66.6 MB). Peak memory consumption was 137.4 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: 4.7s, 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...