/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/dekker.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-26 20:51:28,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-26 20:51:28,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-26 20:51:28,233 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-26 20:51:28,233 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-26 20:51:28,235 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-26 20:51:28,236 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-26 20:51:28,246 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-26 20:51:28,249 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-26 20:51:28,252 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-26 20:51:28,254 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-26 20:51:28,256 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-26 20:51:28,256 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-26 20:51:28,258 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-26 20:51:28,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-26 20:51:28,262 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-26 20:51:28,263 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-26 20:51:28,264 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-26 20:51:28,265 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-26 20:51:28,270 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-26 20:51:28,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-26 20:51:28,277 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-26 20:51:28,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-26 20:51:28,279 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-26 20:51:28,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-26 20:51:28,286 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-26 20:51:28,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-26 20:51:28,288 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-26 20:51:28,289 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-26 20:51:28,290 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-26 20:51:28,290 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-26 20:51:28,292 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-26 20:51:28,292 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-26 20:51:28,292 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-26 20:51:28,294 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-26 20:51:28,295 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-26 20:51:28,296 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2019-12-26 20:51:28,328 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-26 20:51:28,328 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-26 20:51:28,330 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-26 20:51:28,331 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-26 20:51:28,331 INFO L138 SettingsManager]: * Use SBE=true [2019-12-26 20:51:28,331 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-26 20:51:28,332 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-26 20:51:28,332 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-26 20:51:28,332 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-26 20:51:28,332 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-26 20:51:28,332 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-26 20:51:28,333 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-26 20:51:28,334 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-26 20:51:28,334 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-26 20:51:28,334 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-26 20:51:28,334 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-26 20:51:28,335 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-26 20:51:28,335 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-26 20:51:28,335 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-26 20:51:28,335 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-26 20:51:28,335 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-26 20:51:28,336 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:51:28,336 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-26 20:51:28,336 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-26 20:51:28,336 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-26 20:51:28,337 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-26 20:51:28,337 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-26 20:51:28,337 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-26 20:51:28,337 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-26 20:51:28,337 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-26 20:51:28,616 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-26 20:51:28,629 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-26 20:51:28,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-26 20:51:28,634 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-26 20:51:28,634 INFO L275 PluginConnector]: CDTParser initialized [2019-12-26 20:51:28,635 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-26 20:51:28,712 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07be50ccf/f29d7d24edfb49b690e388301ef869c7/FLAG8fbed998d [2019-12-26 20:51:29,259 INFO L306 CDTParser]: Found 1 translation units. [2019-12-26 20:51:29,261 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/dekker.i [2019-12-26 20:51:29,272 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07be50ccf/f29d7d24edfb49b690e388301ef869c7/FLAG8fbed998d [2019-12-26 20:51:29,523 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07be50ccf/f29d7d24edfb49b690e388301ef869c7 [2019-12-26 20:51:29,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-26 20:51:29,534 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-26 20:51:29,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-26 20:51:29,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-26 20:51:29,538 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-26 20:51:29,539 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:51:29" (1/1) ... [2019-12-26 20:51:29,542 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cad934d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:29, skipping insertion in model container [2019-12-26 20:51:29,542 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.12 08:51:29" (1/1) ... [2019-12-26 20:51:29,549 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-26 20:51:29,591 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-26 20:51:30,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:51:30,074 INFO L203 MainTranslator]: Completed pre-run [2019-12-26 20:51:30,116 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-26 20:51:30,182 INFO L208 MainTranslator]: Completed translation [2019-12-26 20:51:30,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30 WrapperNode [2019-12-26 20:51:30,183 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-26 20:51:30,183 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-26 20:51:30,184 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-26 20:51:30,184 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-26 20:51:30,192 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,209 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,231 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-26 20:51:30,231 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-26 20:51:30,231 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-26 20:51:30,231 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-26 20:51:30,241 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,241 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,244 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,251 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,264 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,266 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... [2019-12-26 20:51:30,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-26 20:51:30,276 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-26 20:51:30,276 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-26 20:51:30,276 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-26 20:51:30,277 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-26 20:51:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-26 20:51:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-26 20:51:30,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-26 20:51:30,329 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-26 20:51:30,329 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-26 20:51:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-26 20:51:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-26 20:51:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-26 20:51:30,330 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-26 20:51:30,330 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-26 20:51:30,332 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-26 20:51:30,684 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-26 20:51:30,685 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-26 20:51:30,686 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:51:30 BoogieIcfgContainer [2019-12-26 20:51:30,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-26 20:51:30,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-26 20:51:30,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-26 20:51:30,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-26 20:51:30,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.12 08:51:29" (1/3) ... [2019-12-26 20:51:30,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0d33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:51:30, skipping insertion in model container [2019-12-26 20:51:30,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.12 08:51:30" (2/3) ... [2019-12-26 20:51:30,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e0d33a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.12 08:51:30, skipping insertion in model container [2019-12-26 20:51:30,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.12 08:51:30" (3/3) ... [2019-12-26 20:51:30,694 INFO L109 eAbstractionObserver]: Analyzing ICFG dekker.i [2019-12-26 20:51:30,703 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-26 20:51:30,703 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-26 20:51:30,709 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-26 20:51:30,711 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-26 20:51:30,737 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,737 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,737 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,737 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,738 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,739 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,740 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,740 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,740 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,740 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,741 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,741 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,745 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,745 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,745 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,746 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,752 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,753 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,753 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,753 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-26 20:51:30,779 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-26 20:51:30,799 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-26 20:51:30,799 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-26 20:51:30,799 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-26 20:51:30,800 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-26 20:51:30,800 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-26 20:51:30,800 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-26 20:51:30,800 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-26 20:51:30,801 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-26 20:51:30,815 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 70 places, 77 transitions [2019-12-26 20:51:30,817 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 77 transitions [2019-12-26 20:51:30,862 INFO L132 PetriNetUnfolder]: 13/77 cut-off events. [2019-12-26 20:51:30,862 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-26 20:51:30,869 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 77 events. 13/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2019-12-26 20:51:30,874 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 70 places, 77 transitions [2019-12-26 20:51:30,897 INFO L132 PetriNetUnfolder]: 13/77 cut-off events. [2019-12-26 20:51:30,898 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-26 20:51:30,902 INFO L76 FinitePrefix]: Finished finitePrefix Result has 88 conditions, 77 events. 13/77 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 115 event pairs. 0/63 useless extension candidates. Maximal degree in co-relation 53. Up to 3 conditions per place. [2019-12-26 20:51:30,908 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1428 [2019-12-26 20:51:30,910 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-26 20:51:31,996 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2019-12-26 20:51:32,071 INFO L206 etLargeBlockEncoding]: Checked pairs total: 3136 [2019-12-26 20:51:32,071 INFO L214 etLargeBlockEncoding]: Total number of compositions: 41 [2019-12-26 20:51:32,075 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 39 places, 45 transitions [2019-12-26 20:51:32,103 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 335 states. [2019-12-26 20:51:32,105 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2019-12-26 20:51:32,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-26 20:51:32,112 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:32,113 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-26 20:51:32,114 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:32,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:32,120 INFO L82 PathProgramCache]: Analyzing trace with hash 307755311, now seen corresponding path program 1 times [2019-12-26 20:51:32,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:32,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666949895] [2019-12-26 20:51:32,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:32,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:32,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:32,276 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666949895] [2019-12-26 20:51:32,277 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:32,277 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:51:32,278 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765031797] [2019-12-26 20:51:32,283 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-26 20:51:32,283 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:32,297 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-26 20:51:32,298 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-26 20:51:32,300 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 2 states. [2019-12-26 20:51:32,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:32,334 INFO L93 Difference]: Finished difference Result 335 states and 891 transitions. [2019-12-26 20:51:32,334 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-26 20:51:32,335 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2019-12-26 20:51:32,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:32,357 INFO L225 Difference]: With dead ends: 335 [2019-12-26 20:51:32,358 INFO L226 Difference]: Without dead ends: 296 [2019-12-26 20:51:32,359 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-26 20:51:32,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 296 states. [2019-12-26 20:51:32,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 296 to 296. [2019-12-26 20:51:32,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2019-12-26 20:51:32,430 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 806 transitions. [2019-12-26 20:51:32,431 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 806 transitions. Word has length 5 [2019-12-26 20:51:32,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:32,445 INFO L462 AbstractCegarLoop]: Abstraction has 296 states and 806 transitions. [2019-12-26 20:51:32,445 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-26 20:51:32,446 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 806 transitions. [2019-12-26 20:51:32,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-26 20:51:32,446 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:32,447 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-26 20:51:32,447 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:32,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:32,448 INFO L82 PathProgramCache]: Analyzing trace with hash 950440607, now seen corresponding path program 1 times [2019-12-26 20:51:32,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:32,448 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764132465] [2019-12-26 20:51:32,448 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:32,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:32,542 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:32,542 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764132465] [2019-12-26 20:51:32,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:32,543 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:51:32,543 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [512621057] [2019-12-26 20:51:32,544 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:51:32,545 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:32,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:51:32,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,545 INFO L87 Difference]: Start difference. First operand 296 states and 806 transitions. Second operand 3 states. [2019-12-26 20:51:32,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:32,578 INFO L93 Difference]: Finished difference Result 313 states and 813 transitions. [2019-12-26 20:51:32,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:51:32,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-12-26 20:51:32,579 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:32,581 INFO L225 Difference]: With dead ends: 313 [2019-12-26 20:51:32,582 INFO L226 Difference]: Without dead ends: 250 [2019-12-26 20:51:32,583 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2019-12-26 20:51:32,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 232. [2019-12-26 20:51:32,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 232 states. [2019-12-26 20:51:32,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232 states to 232 states and 621 transitions. [2019-12-26 20:51:32,624 INFO L78 Accepts]: Start accepts. Automaton has 232 states and 621 transitions. Word has length 6 [2019-12-26 20:51:32,624 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:32,624 INFO L462 AbstractCegarLoop]: Abstraction has 232 states and 621 transitions. [2019-12-26 20:51:32,624 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:51:32,624 INFO L276 IsEmpty]: Start isEmpty. Operand 232 states and 621 transitions. [2019-12-26 20:51:32,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-26 20:51:32,626 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:32,626 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:32,626 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:32,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:32,626 INFO L82 PathProgramCache]: Analyzing trace with hash -863522724, now seen corresponding path program 1 times [2019-12-26 20:51:32,627 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:32,627 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734308805] [2019-12-26 20:51:32,627 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:32,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:32,677 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:32,677 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734308805] [2019-12-26 20:51:32,678 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:32,678 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-26 20:51:32,678 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223260621] [2019-12-26 20:51:32,678 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:51:32,679 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:32,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:51:32,679 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,679 INFO L87 Difference]: Start difference. First operand 232 states and 621 transitions. Second operand 3 states. [2019-12-26 20:51:32,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:32,700 INFO L93 Difference]: Finished difference Result 225 states and 583 transitions. [2019-12-26 20:51:32,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:51:32,700 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-26 20:51:32,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:32,702 INFO L225 Difference]: With dead ends: 225 [2019-12-26 20:51:32,702 INFO L226 Difference]: Without dead ends: 156 [2019-12-26 20:51:32,703 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 156 states. [2019-12-26 20:51:32,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 156 to 156. [2019-12-26 20:51:32,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 156 states. [2019-12-26 20:51:32,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 408 transitions. [2019-12-26 20:51:32,714 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 408 transitions. Word has length 8 [2019-12-26 20:51:32,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:32,715 INFO L462 AbstractCegarLoop]: Abstraction has 156 states and 408 transitions. [2019-12-26 20:51:32,715 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:51:32,715 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 408 transitions. [2019-12-26 20:51:32,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 20:51:32,717 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:32,717 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:32,717 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:32,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:32,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1690923042, now seen corresponding path program 1 times [2019-12-26 20:51:32,718 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:32,718 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429707164] [2019-12-26 20:51:32,718 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:32,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:32,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:32,769 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429707164] [2019-12-26 20:51:32,770 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:32,770 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:51:32,770 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680545128] [2019-12-26 20:51:32,770 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:51:32,771 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:32,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:51:32,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,771 INFO L87 Difference]: Start difference. First operand 156 states and 408 transitions. Second operand 3 states. [2019-12-26 20:51:32,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:32,795 INFO L93 Difference]: Finished difference Result 156 states and 398 transitions. [2019-12-26 20:51:32,797 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:51:32,797 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-26 20:51:32,797 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:32,798 INFO L225 Difference]: With dead ends: 156 [2019-12-26 20:51:32,798 INFO L226 Difference]: Without dead ends: 136 [2019-12-26 20:51:32,799 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2019-12-26 20:51:32,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 136. [2019-12-26 20:51:32,810 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 136 states. [2019-12-26 20:51:32,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 136 states to 136 states and 340 transitions. [2019-12-26 20:51:32,811 INFO L78 Accepts]: Start accepts. Automaton has 136 states and 340 transitions. Word has length 11 [2019-12-26 20:51:32,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:32,811 INFO L462 AbstractCegarLoop]: Abstraction has 136 states and 340 transitions. [2019-12-26 20:51:32,811 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:51:32,811 INFO L276 IsEmpty]: Start isEmpty. Operand 136 states and 340 transitions. [2019-12-26 20:51:32,813 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-26 20:51:32,813 INFO L403 BasicCegarLoop]: Found error trace [2019-12-26 20:51:32,814 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-26 20:51:32,814 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-26 20:51:32,814 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-26 20:51:32,814 INFO L82 PathProgramCache]: Analyzing trace with hash -535888112, now seen corresponding path program 2 times [2019-12-26 20:51:32,814 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-26 20:51:32,816 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1246618686] [2019-12-26 20:51:32,816 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-26 20:51:32,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-26 20:51:32,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-26 20:51:32,894 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1246618686] [2019-12-26 20:51:32,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-26 20:51:32,895 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-26 20:51:32,895 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [478013917] [2019-12-26 20:51:32,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-26 20:51:32,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-26 20:51:32,896 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-26 20:51:32,896 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,896 INFO L87 Difference]: Start difference. First operand 136 states and 340 transitions. Second operand 3 states. [2019-12-26 20:51:32,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-26 20:51:32,908 INFO L93 Difference]: Finished difference Result 86 states and 251 transitions. [2019-12-26 20:51:32,908 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-26 20:51:32,908 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-26 20:51:32,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-26 20:51:32,909 INFO L225 Difference]: With dead ends: 86 [2019-12-26 20:51:32,909 INFO L226 Difference]: Without dead ends: 0 [2019-12-26 20:51:32,909 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-26 20:51:32,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-26 20:51:32,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-26 20:51:32,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-26 20:51:32,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-26 20:51:32,910 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-26 20:51:32,910 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-26 20:51:32,910 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-26 20:51:32,911 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-26 20:51:32,911 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-26 20:51:32,911 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-26 20:51:32,915 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.12 08:51:32 BasicIcfg [2019-12-26 20:51:32,915 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-26 20:51:32,917 INFO L168 Benchmark]: Toolchain (without parser) took 3383.87 ms. Allocated memory was 139.5 MB in the beginning and 244.8 MB in the end (delta: 105.4 MB). Free memory was 102.8 MB in the beginning and 177.7 MB in the end (delta: -74.8 MB). Peak memory consumption was 30.6 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:32,918 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-26 20:51:32,919 INFO L168 Benchmark]: CACSL2BoogieTranslator took 648.49 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 163.3 MB in the end (delta: -60.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:32,920 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 203.4 MB. Free memory was 163.3 MB in the beginning and 161.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:32,921 INFO L168 Benchmark]: Boogie Preprocessor took 41.23 ms. Allocated memory is still 203.4 MB. Free memory was 161.3 MB in the beginning and 160.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:32,922 INFO L168 Benchmark]: RCFGBuilder took 410.35 ms. Allocated memory is still 203.4 MB. Free memory was 159.4 MB in the beginning and 138.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:32,923 INFO L168 Benchmark]: TraceAbstraction took 2227.76 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 138.1 MB in the beginning and 177.7 MB in the end (delta: -39.6 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-26 20:51:32,927 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 648.49 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 102.4 MB in the beginning and 163.3 MB in the end (delta: -60.9 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 47.53 ms. Allocated memory is still 203.4 MB. Free memory was 163.3 MB in the beginning and 161.3 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 41.23 ms. Allocated memory is still 203.4 MB. Free memory was 161.3 MB in the beginning and 160.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 410.35 ms. Allocated memory is still 203.4 MB. Free memory was 159.4 MB in the beginning and 138.7 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2227.76 ms. Allocated memory was 203.4 MB in the beginning and 244.8 MB in the end (delta: 41.4 MB). Free memory was 138.1 MB in the beginning and 177.7 MB in the end (delta: -39.6 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.2s, 70 ProgramPointsBefore, 39 ProgramPointsAfterwards, 77 TransitionsBefore, 45 TransitionsAfterwards, 1428 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 14 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 9 ConcurrentYvCompositions, 2 ChoiceCompositions, 605 VarBasedMoverChecksPositive, 60 VarBasedMoverChecksNegative, 39 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 3136 CheckedPairsTotal, 41 TotalNumberOfCompositions - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 64 locations, 2 error locations. Result: SAFE, OverallTime: 2.1s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 199 SDtfs, 82 SDslu, 68 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=335occurred 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: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 454 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...