/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-fae578e [2019-12-18 11:47:44,351 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 11:47:44,354 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 11:47:44,369 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 11:47:44,370 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 11:47:44,371 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 11:47:44,372 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 11:47:44,374 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 11:47:44,378 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 11:47:44,379 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 11:47:44,380 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 11:47:44,385 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 11:47:44,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 11:47:44,387 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 11:47:44,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 11:47:44,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 11:47:44,391 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 11:47:44,393 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 11:47:44,395 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 11:47:44,397 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 11:47:44,401 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 11:47:44,403 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 11:47:44,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 11:47:44,405 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 11:47:44,409 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 11:47:44,409 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 11:47:44,409 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 11:47:44,411 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 11:47:44,412 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 11:47:44,414 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 11:47:44,414 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 11:47:44,416 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 11:47:44,417 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 11:47:44,418 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 11:47:44,421 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 11:47:44,421 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 11:47:44,422 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 11:47:44,422 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 11:47:44,422 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 11:47:44,425 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 11:47:44,425 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 11:47:44,426 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 [2019-12-18 11:47:44,440 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 11:47:44,440 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 11:47:44,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 11:47:44,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 11:47:44,441 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 11:47:44,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 11:47:44,442 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 11:47:44,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 11:47:44,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 11:47:44,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 11:47:44,443 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 11:47:44,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 11:47:44,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 11:47:44,443 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 11:47:44,444 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 11:47:44,444 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 11:47:44,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 11:47:44,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 11:47:44,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 11:47:44,445 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 11:47:44,445 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 11:47:44,445 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 11:47:44,445 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 11:47:44,445 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 11:47:44,445 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 11:47:44,446 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 11:47:44,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 11:47:44,446 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 11:47:44,446 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-18 11:47:44,446 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 11:47:44,738 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 11:47:44,759 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 11:47:44,763 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 11:47:44,764 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 11:47:44,764 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 11:47:44,765 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-18 11:47:44,837 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62af56e02/2b5d5e22505c4db6b03dee3ee72a06d3/FLAGc0376b05c [2019-12-18 11:47:45,377 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 11:47:45,378 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2019-12-18 11:47:45,391 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62af56e02/2b5d5e22505c4db6b03dee3ee72a06d3/FLAGc0376b05c [2019-12-18 11:47:45,714 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62af56e02/2b5d5e22505c4db6b03dee3ee72a06d3 [2019-12-18 11:47:45,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 11:47:45,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 11:47:45,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 11:47:45,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 11:47:45,730 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 11:47:45,731 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:47:45" (1/1) ... [2019-12-18 11:47:45,733 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33b5b1fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:45, skipping insertion in model container [2019-12-18 11:47:45,734 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:47:45" (1/1) ... [2019-12-18 11:47:45,741 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 11:47:45,802 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 11:47:46,250 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:47:46,265 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 11:47:46,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 11:47:46,394 INFO L208 MainTranslator]: Completed translation [2019-12-18 11:47:46,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46 WrapperNode [2019-12-18 11:47:46,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 11:47:46,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 11:47:46,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 11:47:46,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 11:47:46,405 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,429 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,453 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 11:47:46,454 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 11:47:46,454 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 11:47:46,454 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 11:47:46,463 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,463 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,466 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,466 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,474 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,480 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (1/1) ... [2019-12-18 11:47:46,485 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 11:47:46,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 11:47:46,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 11:47:46,486 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 11:47:46,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (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 11:47:46,545 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-18 11:47:46,546 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 11:47:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2019-12-18 11:47:46,547 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2019-12-18 11:47:46,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 11:47:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 11:47:46,548 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 11:47:46,549 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 11:47:46,549 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2019-12-18 11:47:46,550 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2019-12-18 11:47:46,551 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 11:47:46,683 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_read_lock_returnLabel [2019-12-18 11:47:46,687 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_release_read_lock_returnLabel [2019-12-18 11:47:46,880 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_take_write_lock_returnLabel [2019-12-18 11:47:46,890 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 11:47:46,890 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-18 11:47:46,891 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:47:46 BoogieIcfgContainer [2019-12-18 11:47:46,892 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 11:47:46,893 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 11:47:46,893 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 11:47:46,896 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 11:47:46,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:47:45" (1/3) ... [2019-12-18 11:47:46,897 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494000db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:47:46, skipping insertion in model container [2019-12-18 11:47:46,897 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:47:46" (2/3) ... [2019-12-18 11:47:46,898 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@494000db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:47:46, skipping insertion in model container [2019-12-18 11:47:46,898 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:47:46" (3/3) ... [2019-12-18 11:47:46,899 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2019-12-18 11:47:46,909 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 11:47:46,909 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 11:47:46,915 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 11:47:46,916 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 11:47:46,949 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,949 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,950 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,950 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,951 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,951 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,951 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,954 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,954 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,955 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,955 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,955 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,956 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,956 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,956 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,957 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,958 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,958 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,958 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,959 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,959 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,959 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,961 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,961 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,962 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,962 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,962 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,963 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,963 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,963 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,968 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,968 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,969 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,969 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,969 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork0_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,994 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,995 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,995 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,995 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,999 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,999 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:46,999 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:47,000 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:47,000 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork2_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:47,011 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:47,012 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:47,012 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:47,012 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 11:47:47,056 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-18 11:47:47,078 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 11:47:47,078 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 11:47:47,078 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 11:47:47,078 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 11:47:47,078 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 11:47:47,079 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 11:47:47,079 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 11:47:47,079 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 11:47:47,095 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 95 places, 96 transitions [2019-12-18 11:47:47,097 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-18 11:47:47,192 INFO L126 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-18 11:47:47,193 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:47:47,206 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 11:47:47,213 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 95 places, 96 transitions [2019-12-18 11:47:47,289 INFO L126 PetriNetUnfolder]: 19/130 cut-off events. [2019-12-18 11:47:47,289 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 11:47:47,296 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 11:47:47,306 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2072 [2019-12-18 11:47:47,307 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 11:47:48,857 WARN L192 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2019-12-18 11:47:48,972 WARN L192 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 57 [2019-12-18 11:47:49,126 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2019-12-18 11:47:49,232 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6304 [2019-12-18 11:47:49,233 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-18 11:47:49,240 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 55 places, 55 transitions [2019-12-18 11:47:49,629 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2019-12-18 11:47:49,633 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2019-12-18 11:47:49,641 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 11:47:49,642 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:47:49,643 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:47:49,643 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 11:47:49,649 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:47:49,650 INFO L82 PathProgramCache]: Analyzing trace with hash 2025569535, now seen corresponding path program 1 times [2019-12-18 11:47:49,662 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:47:49,663 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1087982480] [2019-12-18 11:47:49,663 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:47:49,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:47:49,881 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 11:47:49,883 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1087982480] [2019-12-18 11:47:49,884 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:47:49,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:47:49,885 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238106331] [2019-12-18 11:47:49,891 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 11:47:49,892 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:47:49,908 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 11:47:49,909 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 11:47:49,911 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2019-12-18 11:47:50,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:47:50,187 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2019-12-18 11:47:50,187 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 11:47:50,189 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2019-12-18 11:47:50,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:47:50,282 INFO L225 Difference]: With dead ends: 9727 [2019-12-18 11:47:50,285 INFO L226 Difference]: Without dead ends: 7325 [2019-12-18 11:47:50,287 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 11:47:50,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2019-12-18 11:47:50,636 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2019-12-18 11:47:50,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2019-12-18 11:47:50,662 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2019-12-18 11:47:50,664 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2019-12-18 11:47:50,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:47:50,665 INFO L462 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2019-12-18 11:47:50,665 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 11:47:50,665 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2019-12-18 11:47:50,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:47:50,667 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:47:50,667 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:47:50,667 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 11:47:50,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:47:50,668 INFO L82 PathProgramCache]: Analyzing trace with hash 952094142, now seen corresponding path program 1 times [2019-12-18 11:47:50,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:47:50,668 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [563537475] [2019-12-18 11:47:50,669 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:47:50,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:47:50,752 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 11:47:50,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [563537475] [2019-12-18 11:47:50,753 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:47:50,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:47:50,753 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782459933] [2019-12-18 11:47:50,755 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 11:47:50,755 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:47:50,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 11:47:50,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 11:47:50,756 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2019-12-18 11:47:50,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:47:50,897 INFO L93 Difference]: Finished difference Result 6872 states and 20348 transitions. [2019-12-18 11:47:50,897 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 11:47:50,897 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 11:47:50,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:47:50,957 INFO L225 Difference]: With dead ends: 6872 [2019-12-18 11:47:50,957 INFO L226 Difference]: Without dead ends: 6776 [2019-12-18 11:47:50,958 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 11:47:50,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6776 states. [2019-12-18 11:47:51,123 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6776 to 4772. [2019-12-18 11:47:51,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4772 states. [2019-12-18 11:47:51,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4772 states to 4772 states and 14625 transitions. [2019-12-18 11:47:51,147 INFO L78 Accepts]: Start accepts. Automaton has 4772 states and 14625 transitions. Word has length 10 [2019-12-18 11:47:51,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:47:51,148 INFO L462 AbstractCegarLoop]: Abstraction has 4772 states and 14625 transitions. [2019-12-18 11:47:51,148 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 11:47:51,148 INFO L276 IsEmpty]: Start isEmpty. Operand 4772 states and 14625 transitions. [2019-12-18 11:47:51,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 11:47:51,157 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:47:51,157 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:47:51,157 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 11:47:51,157 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:47:51,158 INFO L82 PathProgramCache]: Analyzing trace with hash -525587508, now seen corresponding path program 2 times [2019-12-18 11:47:51,158 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:47:51,158 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [744654352] [2019-12-18 11:47:51,158 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:47:51,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:47:51,241 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 11:47:51,241 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [744654352] [2019-12-18 11:47:51,241 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:47:51,242 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:47:51,242 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138117441] [2019-12-18 11:47:51,242 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 11:47:51,242 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:47:51,243 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 11:47:51,244 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 11:47:51,244 INFO L87 Difference]: Start difference. First operand 4772 states and 14625 transitions. Second operand 3 states. [2019-12-18 11:47:51,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:47:51,278 INFO L93 Difference]: Finished difference Result 2244 states and 5528 transitions. [2019-12-18 11:47:51,279 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 11:47:51,279 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-18 11:47:51,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:47:51,298 INFO L225 Difference]: With dead ends: 2244 [2019-12-18 11:47:51,298 INFO L226 Difference]: Without dead ends: 2180 [2019-12-18 11:47:51,298 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 11:47:51,311 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2180 states. [2019-12-18 11:47:51,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2180 to 2180. [2019-12-18 11:47:51,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2180 states. [2019-12-18 11:47:51,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2180 states to 2180 states and 5394 transitions. [2019-12-18 11:47:51,358 INFO L78 Accepts]: Start accepts. Automaton has 2180 states and 5394 transitions. Word has length 10 [2019-12-18 11:47:51,359 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:47:51,359 INFO L462 AbstractCegarLoop]: Abstraction has 2180 states and 5394 transitions. [2019-12-18 11:47:51,359 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 11:47:51,360 INFO L276 IsEmpty]: Start isEmpty. Operand 2180 states and 5394 transitions. [2019-12-18 11:47:51,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-18 11:47:51,361 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:47:51,362 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 11:47:51,362 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 11:47:51,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:47:51,362 INFO L82 PathProgramCache]: Analyzing trace with hash 2052037428, now seen corresponding path program 1 times [2019-12-18 11:47:51,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:47:51,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211506529] [2019-12-18 11:47:51,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:47:51,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:47:51,434 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 11:47:51,434 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211506529] [2019-12-18 11:47:51,435 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:47:51,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 11:47:51,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1307957852] [2019-12-18 11:47:51,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 11:47:51,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:47:51,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 11:47:51,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 11:47:51,437 INFO L87 Difference]: Start difference. First operand 2180 states and 5394 transitions. Second operand 4 states. [2019-12-18 11:47:51,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:47:51,542 INFO L93 Difference]: Finished difference Result 2507 states and 6115 transitions. [2019-12-18 11:47:51,542 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 11:47:51,543 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-18 11:47:51,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:47:51,557 INFO L225 Difference]: With dead ends: 2507 [2019-12-18 11:47:51,557 INFO L226 Difference]: Without dead ends: 1814 [2019-12-18 11:47:51,558 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 11:47:51,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1814 states. [2019-12-18 11:47:51,603 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1814 to 1440. [2019-12-18 11:47:51,603 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1440 states. [2019-12-18 11:47:51,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1440 states to 1440 states and 3564 transitions. [2019-12-18 11:47:51,608 INFO L78 Accepts]: Start accepts. Automaton has 1440 states and 3564 transitions. Word has length 12 [2019-12-18 11:47:51,611 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:47:51,612 INFO L462 AbstractCegarLoop]: Abstraction has 1440 states and 3564 transitions. [2019-12-18 11:47:51,612 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 11:47:51,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1440 states and 3564 transitions. [2019-12-18 11:47:51,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 11:47:51,614 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:47:51,615 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 11:47:51,615 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 11:47:51,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:47:51,622 INFO L82 PathProgramCache]: Analyzing trace with hash -428981579, now seen corresponding path program 1 times [2019-12-18 11:47:51,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:47:51,624 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126811987] [2019-12-18 11:47:51,624 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:47:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:47:51,714 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 11:47:51,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126811987] [2019-12-18 11:47:51,715 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:47:51,715 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:47:51,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [35510332] [2019-12-18 11:47:51,716 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:47:51,716 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:47:51,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:47:51,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:47:51,717 INFO L87 Difference]: Start difference. First operand 1440 states and 3564 transitions. Second operand 5 states. [2019-12-18 11:47:51,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:47:51,756 INFO L93 Difference]: Finished difference Result 1734 states and 4180 transitions. [2019-12-18 11:47:51,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 11:47:51,757 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-18 11:47:51,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:47:51,761 INFO L225 Difference]: With dead ends: 1734 [2019-12-18 11:47:51,761 INFO L226 Difference]: Without dead ends: 1508 [2019-12-18 11:47:51,762 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 11:47:51,769 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1508 states. [2019-12-18 11:47:51,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1508 to 1376. [2019-12-18 11:47:51,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2019-12-18 11:47:51,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2019-12-18 11:47:51,796 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 19 [2019-12-18 11:47:51,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:47:51,796 INFO L462 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2019-12-18 11:47:51,796 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:47:51,796 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2019-12-18 11:47:51,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-18 11:47:51,798 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 11:47:51,798 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 11:47:51,798 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 11:47:51,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 11:47:51,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1672493533, now seen corresponding path program 2 times [2019-12-18 11:47:51,799 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 11:47:51,799 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1807524795] [2019-12-18 11:47:51,799 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 11:47:51,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 11:47:51,854 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 11:47:51,855 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1807524795] [2019-12-18 11:47:51,855 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 11:47:51,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 11:47:51,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [570601177] [2019-12-18 11:47:51,856 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-18 11:47:51,856 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 11:47:51,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-18 11:47:51,858 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-18 11:47:51,858 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2019-12-18 11:47:51,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 11:47:51,893 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2019-12-18 11:47:51,894 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-18 11:47:51,894 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2019-12-18 11:47:51,894 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 11:47:51,894 INFO L225 Difference]: With dead ends: 530 [2019-12-18 11:47:51,895 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 11:47:51,895 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 11:47:51,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 11:47:51,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 11:47:51,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 11:47:51,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 11:47:51,896 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-18 11:47:51,896 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 11:47:51,896 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 11:47:51,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-18 11:47:51,897 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 11:47:51,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 11:47:51,902 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:47:51 BasicIcfg [2019-12-18 11:47:51,902 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 11:47:51,905 INFO L168 Benchmark]: Toolchain (without parser) took 6179.39 ms. Allocated memory was 138.9 MB in the beginning and 294.6 MB in the end (delta: 155.7 MB). Free memory was 101.4 MB in the beginning and 173.4 MB in the end (delta: -72.0 MB). Peak memory consumption was 83.7 MB. Max. memory is 7.1 GB. [2019-12-18 11:47:51,905 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-18 11:47:51,911 INFO L168 Benchmark]: CACSL2BoogieTranslator took 669.58 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 161.7 MB in the end (delta: -60.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-12-18 11:47:51,912 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.55 ms. Allocated memory is still 202.9 MB. Free memory was 161.7 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 11:47:51,913 INFO L168 Benchmark]: Boogie Preprocessor took 31.32 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 11:47:51,913 INFO L168 Benchmark]: RCFGBuilder took 406.42 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 136.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-12-18 11:47:51,914 INFO L168 Benchmark]: TraceAbstraction took 5009.40 ms. Allocated memory was 202.9 MB in the beginning and 294.6 MB in the end (delta: 91.8 MB). Free memory was 136.6 MB in the beginning and 173.4 MB in the end (delta: -36.8 MB). Peak memory consumption was 54.9 MB. Max. memory is 7.1 GB. [2019-12-18 11:47:51,926 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 138.9 MB. Free memory is still 120.7 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 669.58 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 161.7 MB in the end (delta: -60.6 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 57.55 ms. Allocated memory is still 202.9 MB. Free memory was 161.7 MB in the beginning and 159.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.32 ms. Allocated memory is still 202.9 MB. Free memory was 159.8 MB in the beginning and 158.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 406.42 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 136.6 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 5009.40 ms. Allocated memory was 202.9 MB in the beginning and 294.6 MB in the end (delta: 91.8 MB). Free memory was 136.6 MB in the beginning and 173.4 MB in the end (delta: -36.8 MB). Peak memory consumption was 54.9 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: 0.3s, 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: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 461 SDtfs, 420 SDslu, 509 SDs, 0 SdLazy, 137 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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: 0.6s 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...