/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.epf -i ../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 23:42:41,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 23:42:41,296 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 23:42:41,308 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 23:42:41,308 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 23:42:41,309 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 23:42:41,311 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 23:42:41,312 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 23:42:41,314 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 23:42:41,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 23:42:41,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 23:42:41,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 23:42:41,318 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 23:42:41,319 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 23:42:41,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 23:42:41,321 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 23:42:41,321 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 23:42:41,322 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 23:42:41,324 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 23:42:41,326 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 23:42:41,328 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 23:42:41,329 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 23:42:41,330 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 23:42:41,331 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 23:42:41,333 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-18 23:42:41,336 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 23:42:41,337 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 23:42:41,337 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 23:42:41,338 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 23:42:41,339 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 23:42:41,339 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 23:42:41,340 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 23:42:41,340 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 23:42:41,340 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 23:42:41,341 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 23:42:41,342 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 23:42:41,343 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.epf [2019-12-18 23:42:41,359 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 23:42:41,359 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 23:42:41,360 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 23:42:41,360 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 23:42:41,361 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 23:42:41,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 23:42:41,362 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 23:42:41,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 23:42:41,362 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 23:42:41,362 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 23:42:41,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 23:42:41,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 23:42:41,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 23:42:41,363 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 23:42:41,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 23:42:41,364 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 23:42:41,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 23:42:41,365 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 23:42:41,365 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 23:42:41,366 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 23:42:41,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 23:42:41,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 23:42:41,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 23:42:41,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 23:42:41,367 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 23:42:41,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 23:42:41,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 23:42:41,367 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-18 23:42:41,367 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 23:42:41,367 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 23:42:41,627 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 23:42:41,643 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 23:42:41,649 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 23:42:41,651 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 23:42:41,651 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 23:42:41,652 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2019-12-18 23:42:41,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092c9123d/30cd2cfd9afe4d119c5e90f102e1dbe2/FLAG925f25915 [2019-12-18 23:42:42,315 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 23:42:42,316 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2019-12-18 23:42:42,331 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092c9123d/30cd2cfd9afe4d119c5e90f102e1dbe2/FLAG925f25915 [2019-12-18 23:42:42,630 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/092c9123d/30cd2cfd9afe4d119c5e90f102e1dbe2 [2019-12-18 23:42:42,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 23:42:42,641 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 23:42:42,642 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 23:42:42,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 23:42:42,651 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 23:42:42,652 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:42:42" (1/1) ... [2019-12-18 23:42:42,654 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5e65ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:42, skipping insertion in model container [2019-12-18 23:42:42,655 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:42:42" (1/1) ... [2019-12-18 23:42:42,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 23:42:42,713 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 23:42:43,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:42:43,169 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 23:42:43,216 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 23:42:43,285 INFO L208 MainTranslator]: Completed translation [2019-12-18 23:42:43,286 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43 WrapperNode [2019-12-18 23:42:43,286 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 23:42:43,286 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 23:42:43,287 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 23:42:43,287 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 23:42:43,296 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,312 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,336 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 23:42:43,336 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 23:42:43,337 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 23:42:43,337 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 23:42:43,344 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,344 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,347 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,347 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,352 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,354 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,356 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (1/1) ... [2019-12-18 23:42:43,359 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 23:42:43,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 23:42:43,360 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 23:42:43,360 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 23:42:43,361 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (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 23:42:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-18 23:42:43,415 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-18 23:42:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 23:42:43,415 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 23:42:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 23:42:43,416 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 23:42:43,416 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 23:42:43,418 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 23:42:43,546 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_w_returnLabel [2019-12-18 23:42:43,595 INFO L1525 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_r_returnLabel [2019-12-18 23:42:43,694 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 23:42:43,694 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 23:42:43,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:42:43 BoogieIcfgContainer [2019-12-18 23:42:43,696 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 23:42:43,697 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 23:42:43,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 23:42:43,701 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 23:42:43,701 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:42:42" (1/3) ... [2019-12-18 23:42:43,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d73aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:42:43, skipping insertion in model container [2019-12-18 23:42:43,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:42:43" (2/3) ... [2019-12-18 23:42:43,702 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31d73aaa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:42:43, skipping insertion in model container [2019-12-18 23:42:43,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:42:43" (3/3) ... [2019-12-18 23:42:43,704 INFO L109 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2019-12-18 23:42:43,715 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 23:42:43,715 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 23:42:43,722 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 23:42:43,723 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 23:42:43,746 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,747 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,747 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,748 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,748 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,749 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,754 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,754 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,756 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,756 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 23:42:43,785 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-18 23:42:43,803 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 23:42:43,803 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 23:42:43,804 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 23:42:43,804 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 23:42:43,804 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 23:42:43,804 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 23:42:43,804 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 23:42:43,804 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 23:42:43,812 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions [2019-12-18 23:42:43,833 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 126 states. [2019-12-18 23:42:43,835 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states. [2019-12-18 23:42:43,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2019-12-18 23:42:43,844 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:43,845 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 23:42:43,846 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:43,852 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:43,852 INFO L82 PathProgramCache]: Analyzing trace with hash 1607773896, now seen corresponding path program 1 times [2019-12-18 23:42:43,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:43,860 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1367841137] [2019-12-18 23:42:43,861 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:44,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:44,146 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 23:42:44,147 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1367841137] [2019-12-18 23:42:44,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:44,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:42:44,150 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598673167] [2019-12-18 23:42:44,157 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:42:44,158 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:44,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:42:44,180 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:42:44,185 INFO L87 Difference]: Start difference. First operand 126 states. Second operand 3 states. [2019-12-18 23:42:44,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:44,255 INFO L93 Difference]: Finished difference Result 166 states and 280 transitions. [2019-12-18 23:42:44,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:42:44,261 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 20 [2019-12-18 23:42:44,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:44,279 INFO L225 Difference]: With dead ends: 166 [2019-12-18 23:42:44,279 INFO L226 Difference]: Without dead ends: 38 [2019-12-18 23:42:44,286 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 23:42:44,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2019-12-18 23:42:44,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2019-12-18 23:42:44,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38 states. [2019-12-18 23:42:44,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 49 transitions. [2019-12-18 23:42:44,345 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 49 transitions. Word has length 20 [2019-12-18 23:42:44,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:44,346 INFO L462 AbstractCegarLoop]: Abstraction has 38 states and 49 transitions. [2019-12-18 23:42:44,346 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:42:44,346 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 49 transitions. [2019-12-18 23:42:44,349 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-18 23:42:44,349 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:44,349 INFO L411 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] [2019-12-18 23:42:44,350 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:44,350 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:44,350 INFO L82 PathProgramCache]: Analyzing trace with hash -817206821, now seen corresponding path program 1 times [2019-12-18 23:42:44,351 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:44,351 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1714234574] [2019-12-18 23:42:44,351 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:44,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:44,490 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 23:42:44,491 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1714234574] [2019-12-18 23:42:44,491 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:44,491 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 23:42:44,491 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619563578] [2019-12-18 23:42:44,493 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 23:42:44,493 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:44,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 23:42:44,494 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 23:42:44,494 INFO L87 Difference]: Start difference. First operand 38 states and 49 transitions. Second operand 3 states. [2019-12-18 23:42:44,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:44,504 INFO L93 Difference]: Finished difference Result 38 states and 48 transitions. [2019-12-18 23:42:44,504 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 23:42:44,504 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-18 23:42:44,505 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:44,505 INFO L225 Difference]: With dead ends: 38 [2019-12-18 23:42:44,506 INFO L226 Difference]: Without dead ends: 33 [2019-12-18 23:42:44,507 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 23:42:44,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-18 23:42:44,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-18 23:42:44,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-18 23:42:44,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 39 transitions. [2019-12-18 23:42:44,512 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 39 transitions. Word has length 22 [2019-12-18 23:42:44,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:44,513 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 39 transitions. [2019-12-18 23:42:44,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 23:42:44,513 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 39 transitions. [2019-12-18 23:42:44,514 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-18 23:42:44,514 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 23:42:44,515 INFO L411 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] [2019-12-18 23:42:44,515 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 23:42:44,515 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 23:42:44,515 INFO L82 PathProgramCache]: Analyzing trace with hash -1086541363, now seen corresponding path program 2 times [2019-12-18 23:42:44,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 23:42:44,516 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [440102016] [2019-12-18 23:42:44,516 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 23:42:44,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 23:42:44,604 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 23:42:44,604 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [440102016] [2019-12-18 23:42:44,605 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 23:42:44,605 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-18 23:42:44,605 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342874989] [2019-12-18 23:42:44,606 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 23:42:44,606 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 23:42:44,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 23:42:44,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 23:42:44,607 INFO L87 Difference]: Start difference. First operand 33 states and 39 transitions. Second operand 4 states. [2019-12-18 23:42:44,614 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 23:42:44,615 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2019-12-18 23:42:44,615 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 23:42:44,616 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2019-12-18 23:42:44,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 23:42:44,616 INFO L225 Difference]: With dead ends: 19 [2019-12-18 23:42:44,616 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 23:42:44,617 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 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 23:42:44,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 23:42:44,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 23:42:44,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 23:42:44,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 23:42:44,618 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-12-18 23:42:44,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 23:42:44,619 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 23:42:44,619 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 23:42:44,619 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 23:42:44,619 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 23:42:44,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 11:42:44 BasicIcfg [2019-12-18 23:42:44,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 23:42:44,628 INFO L168 Benchmark]: Toolchain (without parser) took 1985.85 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.5 MB in the beginning and 99.7 MB in the end (delta: 1.8 MB). Peak memory consumption was 65.7 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:44,629 INFO L168 Benchmark]: CDTParser took 0.70 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 23:42:44,630 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.78 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 161.2 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:44,631 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.75 ms. Allocated memory is still 201.9 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:44,632 INFO L168 Benchmark]: Boogie Preprocessor took 22.65 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:44,633 INFO L168 Benchmark]: RCFGBuilder took 336.98 ms. Allocated memory is still 201.9 MB. Free memory was 157.8 MB in the beginning and 140.6 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:44,634 INFO L168 Benchmark]: TraceAbstraction took 927.64 ms. Allocated memory is still 201.9 MB. Free memory was 139.9 MB in the beginning and 99.7 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. [2019-12-18 23:42:44,638 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.70 ms. Allocated memory is still 137.9 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.78 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 101.2 MB in the beginning and 161.2 MB in the end (delta: -59.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.75 ms. Allocated memory is still 201.9 MB. Free memory was 161.2 MB in the beginning and 159.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 22.65 ms. Allocated memory is still 201.9 MB. Free memory was 159.2 MB in the beginning and 157.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 336.98 ms. Allocated memory is still 201.9 MB. Free memory was 157.8 MB in the beginning and 140.6 MB in the end (delta: 17.3 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 927.64 ms. Allocated memory is still 201.9 MB. Free memory was 139.9 MB in the beginning and 99.7 MB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: 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, 37 locations, 1 error locations. Result: SAFE, OverallTime: 0.8s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 86 SDtfs, 19 SDslu, 69 SDs, 0 SdLazy, 12 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=126occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 64 NumberOfCodeBlocks, 64 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 2037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...