/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-18 16:16:04,505 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-18 16:16:04,508 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-18 16:16:04,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-18 16:16:04,530 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-18 16:16:04,532 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-18 16:16:04,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-18 16:16:04,545 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-18 16:16:04,548 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-18 16:16:04,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-18 16:16:04,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-18 16:16:04,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-18 16:16:04,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-18 16:16:04,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-18 16:16:04,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-18 16:16:04,562 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-18 16:16:04,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-18 16:16:04,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-18 16:16:04,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-18 16:16:04,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-18 16:16:04,577 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-18 16:16:04,581 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-18 16:16:04,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-18 16:16:04,584 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-18 16:16:04,586 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-18 16:16:04,586 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-18 16:16:04,586 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-18 16:16:04,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-18 16:16:04,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-18 16:16:04,592 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-18 16:16:04,592 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-18 16:16:04,593 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-18 16:16:04,594 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-18 16:16:04,595 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-18 16:16:04,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-18 16:16:04,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-18 16:16:04,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-18 16:16:04,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-18 16:16:04,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-18 16:16:04,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-18 16:16:04,599 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-18 16:16:04,600 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-McrStrategy.epf [2020-04-18 16:16:04,633 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-18 16:16:04,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-18 16:16:04,634 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-18 16:16:04,635 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-18 16:16:04,635 INFO L138 SettingsManager]: * Use SBE=true [2020-04-18 16:16:04,635 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-18 16:16:04,635 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-18 16:16:04,636 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-18 16:16:04,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-18 16:16:04,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-18 16:16:04,636 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-18 16:16:04,636 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-18 16:16:04,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-18 16:16:04,637 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-18 16:16:04,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-18 16:16:04,637 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-18 16:16:04,637 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-18 16:16:04,637 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-18 16:16:04,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-18 16:16:04,638 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-18 16:16:04,638 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-18 16:16:04,638 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-18 16:16:04,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-18 16:16:04,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-18 16:16:04,639 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-18 16:16:04,639 INFO L138 SettingsManager]: * Trace refinement strategy=MCR [2020-04-18 16:16:04,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-18 16:16:04,640 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-04-18 16:16:04,640 INFO L138 SettingsManager]: * Trace refinement strategy used in MCR=CAMEL [2020-04-18 16:16:04,640 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-18 16:16:04,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-18 16:16:04,960 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-18 16:16:04,979 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-18 16:16:04,985 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-18 16:16:04,987 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-18 16:16:04,988 INFO L275 PluginConnector]: CDTParser initialized [2020-04-18 16:16:04,990 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-04-18 16:16:05,067 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e4a717e2/07efee6e7d414d2db14c8c92566958c8/FLAG79b87e05e [2020-04-18 16:16:05,644 INFO L306 CDTParser]: Found 1 translation units. [2020-04-18 16:16:05,648 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-04-18 16:16:05,666 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e4a717e2/07efee6e7d414d2db14c8c92566958c8/FLAG79b87e05e [2020-04-18 16:16:05,916 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7e4a717e2/07efee6e7d414d2db14c8c92566958c8 [2020-04-18 16:16:05,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-18 16:16:05,950 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-18 16:16:05,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-18 16:16:05,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-18 16:16:05,955 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-18 16:16:05,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:16:05" (1/1) ... [2020-04-18 16:16:05,959 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@503149f0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:05, skipping insertion in model container [2020-04-18 16:16:05,960 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.04 04:16:05" (1/1) ... [2020-04-18 16:16:05,968 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-18 16:16:06,018 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-18 16:16:06,459 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:16:06,471 INFO L203 MainTranslator]: Completed pre-run [2020-04-18 16:16:06,514 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-18 16:16:06,615 INFO L208 MainTranslator]: Completed translation [2020-04-18 16:16:06,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06 WrapperNode [2020-04-18 16:16:06,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-18 16:16:06,616 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-18 16:16:06,617 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-18 16:16:06,617 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-18 16:16:06,628 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,651 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,672 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-18 16:16:06,673 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-18 16:16:06,673 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-18 16:16:06,673 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-18 16:16:06,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,683 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,683 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,689 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (1/1) ... [2020-04-18 16:16:06,696 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-18 16:16:06,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-18 16:16:06,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-18 16:16:06,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-18 16:16:06,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (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 [2020-04-18 16:16:06,757 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-18 16:16:06,757 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-18 16:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-18 16:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-18 16:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-18 16:16:06,758 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-18 16:16:06,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-18 16:16:06,760 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-18 16:16:07,303 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-18 16:16:07,304 INFO L295 CfgBuilder]: Removed 6 assume(true) statements. [2020-04-18 16:16:07,308 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:16:07 BoogieIcfgContainer [2020-04-18 16:16:07,309 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-18 16:16:07,310 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-18 16:16:07,310 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-18 16:16:07,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-18 16:16:07,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.04 04:16:05" (1/3) ... [2020-04-18 16:16:07,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360cf4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:16:07, skipping insertion in model container [2020-04-18 16:16:07,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.04 04:16:06" (2/3) ... [2020-04-18 16:16:07,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@360cf4fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.04 04:16:07, skipping insertion in model container [2020-04-18 16:16:07,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.04 04:16:07" (3/3) ... [2020-04-18 16:16:07,318 INFO L109 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2020-04-18 16:16:07,330 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-18 16:16:07,330 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-18 16:16:07,338 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-18 16:16:07,339 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-18 16:16:07,361 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,361 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,361 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,362 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,362 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,363 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,363 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,367 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,368 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,368 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,368 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,369 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,369 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-18 16:16:07,387 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-04-18 16:16:07,409 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-18 16:16:07,409 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-18 16:16:07,409 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-18 16:16:07,409 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-18 16:16:07,409 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-18 16:16:07,410 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-18 16:16:07,410 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-18 16:16:07,410 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-18 16:16:07,422 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 39 transitions, 83 flow [2020-04-18 16:16:07,441 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 152 states. [2020-04-18 16:16:07,443 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states. [2020-04-18 16:16:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 16:16:07,453 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:16:07,454 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:16:07,455 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:16:07,461 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:07,462 INFO L82 PathProgramCache]: Analyzing trace with hash -1104158689, now seen corresponding path program 1 times [2020-04-18 16:16:07,469 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:16:07,470 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [1100349760] [2020-04-18 16:16:07,486 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:07,501 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-04-18 16:16:07,503 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2020-04-18 16:16:07,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-04-18 16:16:07,504 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:16:07,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:07,505 INFO L82 PathProgramCache]: Analyzing trace with hash -1104158689, now seen corresponding path program 2 times [2020-04-18 16:16:07,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:07,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715599516] [2020-04-18 16:16:07,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:07,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:07,732 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:07,733 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715599516] [2020-04-18 16:16:07,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:07,736 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:16:07,739 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:07,742 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:07,747 INFO L259 McrAutomatonBuilder]: Finished intersection with 22 states and 21 transitions. [2020-04-18 16:16:07,748 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:07,758 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:16:07,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:07,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:07,766 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2020-04-18 16:16:07,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:07,775 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-04-18 16:16:07,775 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 21 transitions. [2020-04-18 16:16:07,776 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:07,777 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [1100349760] [2020-04-18 16:16:07,777 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:16:07,777 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3] total 3 [2020-04-18 16:16:07,778 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [1100349760] [2020-04-18 16:16:07,779 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-18 16:16:07,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:16:07,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:07,785 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:07,785 INFO L87 Difference]: Start difference. First operand 152 states. Second operand 3 states. [2020-04-18 16:16:07,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:07,821 INFO L93 Difference]: Finished difference Result 190 states and 326 transitions. [2020-04-18 16:16:07,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-18 16:16:07,823 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-04-18 16:16:07,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:16:07,833 INFO L225 Difference]: With dead ends: 190 [2020-04-18 16:16:07,833 INFO L226 Difference]: Without dead ends: 48 [2020-04-18 16:16:07,835 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:07,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-04-18 16:16:07,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-04-18 16:16:07,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-04-18 16:16:07,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 67 transitions. [2020-04-18 16:16:07,879 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 67 transitions. Word has length 21 [2020-04-18 16:16:07,879 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:16:07,880 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 67 transitions. [2020-04-18 16:16:07,880 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-18 16:16:07,880 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 67 transitions. [2020-04-18 16:16:07,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 16:16:07,881 INFO L417 BasicCegarLoop]: Found error trace [2020-04-18 16:16:07,882 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-18 16:16:07,882 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-18 16:16:07,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:07,882 INFO L82 PathProgramCache]: Analyzing trace with hash -2004115218, now seen corresponding path program 1 times [2020-04-18 16:16:07,883 INFO L163 FreeRefinementEngine]: Executing refinement strategy MCR [2020-04-18 16:16:07,883 INFO L354 FreeRefinementEngine]: Using trace check StrategyModuleMcr [393058668] [2020-04-18 16:16:07,884 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:07,887 INFO L259 McrAutomatonBuilder]: Finished intersection with 52 states and 78 transitions. [2020-04-18 16:16:07,888 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states. [2020-04-18 16:16:07,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 16:16:07,889 INFO L105 Mcr]: ---- MCR iteration 0 ---- [2020-04-18 16:16:07,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:07,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1229551272, now seen corresponding path program 2 times [2020-04-18 16:16:07,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:07,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090440714] [2020-04-18 16:16:07,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:07,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:08,011 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:08,011 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090440714] [2020-04-18 16:16:08,012 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:08,029 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:16:08,030 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:08,035 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:08,043 INFO L259 McrAutomatonBuilder]: Finished intersection with 41 states and 56 transitions. [2020-04-18 16:16:08,044 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:08,053 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:16:08,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:08,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-18 16:16:08,054 INFO L87 Difference]: Start difference. First operand 52 states. Second operand 3 states. [2020-04-18 16:16:08,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:08,063 INFO L93 Difference]: Finished difference Result 55 states and 80 transitions. [2020-04-18 16:16:08,064 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 80 transitions. [2020-04-18 16:16:08,064 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 16:16:08,065 INFO L105 Mcr]: ---- MCR iteration 1 ---- [2020-04-18 16:16:08,065 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:08,066 INFO L82 PathProgramCache]: Analyzing trace with hash -2004115218, now seen corresponding path program 3 times [2020-04-18 16:16:08,066 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:08,067 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1991616811] [2020-04-18 16:16:08,067 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:08,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:08,148 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:08,149 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1991616811] [2020-04-18 16:16:08,149 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:08,149 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-18 16:16:08,150 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:08,151 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:08,155 INFO L259 McrAutomatonBuilder]: Finished intersection with 35 states and 44 transitions. [2020-04-18 16:16:08,155 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:08,168 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 0 times. [2020-04-18 16:16:08,168 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-18 16:16:08,168 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-18 16:16:08,169 INFO L87 Difference]: Start difference. First operand 55 states and 80 transitions. Second operand 3 states. [2020-04-18 16:16:08,174 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:08,175 INFO L93 Difference]: Finished difference Result 66 states and 92 transitions. [2020-04-18 16:16:08,175 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2020-04-18 16:16:08,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-04-18 16:16:08,176 INFO L105 Mcr]: ---- MCR iteration 2 ---- [2020-04-18 16:16:08,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-18 16:16:08,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2042774918, now seen corresponding path program 4 times [2020-04-18 16:16:08,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-18 16:16:08,177 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2022910506] [2020-04-18 16:16:08,177 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-18 16:16:08,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-18 16:16:08,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-18 16:16:08,293 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2022910506] [2020-04-18 16:16:08,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-18 16:16:08,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-18 16:16:08,294 INFO L201 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-04-18 16:16:08,295 INFO L256 McrAutomatonBuilder]: Started intersection. [2020-04-18 16:16:08,298 INFO L259 McrAutomatonBuilder]: Finished intersection with 33 states and 40 transitions. [2020-04-18 16:16:08,299 INFO L282 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton. [2020-04-18 16:16:08,331 INFO L356 McrAutomatonBuilder]: Construction finished. Needed to calculate wp 2 times. [2020-04-18 16:16:08,332 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-18 16:16:08,332 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:16:08,332 INFO L87 Difference]: Start difference. First operand 66 states and 92 transitions. Second operand 4 states. [2020-04-18 16:16:08,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:08,340 INFO L93 Difference]: Finished difference Result 66 states and 92 transitions. [2020-04-18 16:16:08,341 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 92 transitions. [2020-04-18 16:16:08,342 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:08,343 INFO L354 FreeRefinementEngine]: Using interpolant generator StrategyModuleMcr [393058668] [2020-04-18 16:16:08,343 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-04-18 16:16:08,343 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2020-04-18 16:16:08,343 INFO L156 tionRefinementEngine]: Using interpolant automaton builder StrategyModuleMcr [393058668] [2020-04-18 16:16:08,344 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-04-18 16:16:08,344 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy MCR [2020-04-18 16:16:08,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-04-18 16:16:08,345 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-04-18 16:16:08,345 INFO L87 Difference]: Start difference. First operand 48 states and 67 transitions. Second operand 6 states. [2020-04-18 16:16:08,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-18 16:16:08,382 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2020-04-18 16:16:08,382 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-04-18 16:16:08,383 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-04-18 16:16:08,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-18 16:16:08,383 INFO L225 Difference]: With dead ends: 34 [2020-04-18 16:16:08,383 INFO L226 Difference]: Without dead ends: 0 [2020-04-18 16:16:08,385 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-04-18 16:16:08,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-18 16:16:08,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-18 16:16:08,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-18 16:16:08,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-18 16:16:08,386 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2020-04-18 16:16:08,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-18 16:16:08,386 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-18 16:16:08,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-04-18 16:16:08,386 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-18 16:16:08,387 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-18 16:16:08,392 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.04 04:16:08 BasicIcfg [2020-04-18 16:16:08,392 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-18 16:16:08,395 INFO L168 Benchmark]: Toolchain (without parser) took 2465.37 ms. Allocated memory was 137.4 MB in the beginning and 231.7 MB in the end (delta: 94.4 MB). Free memory was 100.5 MB in the beginning and 165.4 MB in the end (delta: -64.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:08,396 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2020-04-18 16:16:08,397 INFO L168 Benchmark]: CACSL2BoogieTranslator took 664.40 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 159.8 MB in the end (delta: -61.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:08,398 INFO L168 Benchmark]: Boogie Procedure Inliner took 56.01 ms. Allocated memory is still 200.8 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:08,399 INFO L168 Benchmark]: Boogie Preprocessor took 23.53 ms. Allocated memory is still 200.8 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:08,400 INFO L168 Benchmark]: RCFGBuilder took 612.43 ms. Allocated memory is still 200.8 MB. Free memory was 156.5 MB in the beginning and 123.0 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. [2020-04-18 16:16:08,401 INFO L168 Benchmark]: TraceAbstraction took 1082.21 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 123.0 MB in the beginning and 165.4 MB in the end (delta: -42.4 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-18 16:16:08,405 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 664.40 ms. Allocated memory was 137.4 MB in the beginning and 200.8 MB in the end (delta: 63.4 MB). Free memory was 98.5 MB in the beginning and 159.8 MB in the end (delta: -61.3 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 56.01 ms. Allocated memory is still 200.8 MB. Free memory was 159.8 MB in the beginning and 157.8 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 23.53 ms. Allocated memory is still 200.8 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 612.43 ms. Allocated memory is still 200.8 MB. Free memory was 156.5 MB in the beginning and 123.0 MB in the end (delta: 33.4 MB). Peak memory consumption was 33.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1082.21 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 123.0 MB in the beginning and 165.4 MB in the end (delta: -42.4 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 698]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 68 SDtfs, 17 SDslu, 102 SDs, 0 SdLazy, 17 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=152occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...