/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-lit/qw2004-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:40:04,187 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:40:04,191 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:40:04,207 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:40:04,208 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:40:04,209 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:40:04,210 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:40:04,212 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:40:04,213 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:40:04,214 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:40:04,215 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:40:04,216 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:40:04,217 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:40:04,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:40:04,219 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:40:04,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:40:04,221 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:40:04,222 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:40:04,223 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:40:04,225 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:40:04,227 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:40:04,228 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:40:04,229 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:40:04,230 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:40:04,232 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:40:04,233 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:40:04,233 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:40:04,234 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:40:04,234 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:40:04,235 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:40:04,236 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:40:04,236 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:40:04,237 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:40:04,238 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:40:04,239 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:40:04,239 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:40:04,240 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:40:04,240 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:40:04,240 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:40:04,241 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:40:04,242 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:40:04,243 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 [2019-12-19 05:40:04,257 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:40:04,258 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:40:04,259 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:40:04,259 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:40:04,259 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:40:04,260 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:40:04,260 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:40:04,260 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:40:04,260 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:40:04,260 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:40:04,261 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:40:04,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:40:04,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:40:04,261 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:40:04,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:40:04,262 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:40:04,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:40:04,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:40:04,262 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:40:04,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:40:04,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:40:04,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:40:04,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:40:04,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:40:04,263 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:40:04,263 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:40:04,264 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:40:04,264 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:40:04,264 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:40:04,264 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:40:04,527 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:40:04,551 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:40:04,557 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:40:04,558 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:40:04,559 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:40:04,560 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2019-12-19 05:40:04,633 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c7e1395/39af1135b41a4b49adc4b6dfa37409e0/FLAGb6ae6e9e7 [2019-12-19 05:40:05,159 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:40:05,159 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2019-12-19 05:40:05,180 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c7e1395/39af1135b41a4b49adc4b6dfa37409e0/FLAGb6ae6e9e7 [2019-12-19 05:40:05,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b4c7e1395/39af1135b41a4b49adc4b6dfa37409e0 [2019-12-19 05:40:05,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:40:05,501 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:40:05,502 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:40:05,502 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:40:05,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:40:05,507 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:40:05" (1/1) ... [2019-12-19 05:40:05,510 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@227488c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:05, skipping insertion in model container [2019-12-19 05:40:05,510 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:40:05" (1/1) ... [2019-12-19 05:40:05,518 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:40:05,562 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:40:06,073 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:40:06,089 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:40:06,171 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:40:06,245 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:40:06,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06 WrapperNode [2019-12-19 05:40:06,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:40:06,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:40:06,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:40:06,247 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:40:06,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,298 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:40:06,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:40:06,299 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:40:06,299 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:40:06,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,309 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,310 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,317 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,319 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... [2019-12-19 05:40:06,322 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:40:06,323 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:40:06,323 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:40:06,323 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:40:06,324 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:40:06,395 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2019-12-19 05:40:06,396 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2019-12-19 05:40:06,396 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:40:06,396 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:40:06,396 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:40:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:40:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:40:06,397 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:40:06,397 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:40:06,399 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:40:06,827 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:40:06,827 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-19 05:40:06,829 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:40:06 BoogieIcfgContainer [2019-12-19 05:40:06,829 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:40:06,830 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:40:06,831 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:40:06,834 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:40:06,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:40:05" (1/3) ... [2019-12-19 05:40:06,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbbef75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:40:06, skipping insertion in model container [2019-12-19 05:40:06,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:40:06" (2/3) ... [2019-12-19 05:40:06,836 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1fbbef75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:40:06, skipping insertion in model container [2019-12-19 05:40:06,836 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:40:06" (3/3) ... [2019-12-19 05:40:06,838 INFO L109 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2019-12-19 05:40:06,848 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:40:06,848 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:40:06,855 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:40:06,856 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:40:06,888 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,888 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,888 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,889 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,889 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,890 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,890 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,890 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,891 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,891 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,891 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,892 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,893 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,893 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,893 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,894 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,894 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,895 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,895 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,895 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,896 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,896 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,901 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,902 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,902 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,902 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,903 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,903 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,903 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,903 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,904 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:40:06,921 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-19 05:40:06,941 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:40:06,941 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:40:06,941 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:40:06,941 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:40:06,941 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:40:06,942 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:40:06,942 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:40:06,942 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:40:06,954 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 79 places, 80 transitions [2019-12-19 05:40:07,011 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 772 states. [2019-12-19 05:40:07,014 INFO L276 IsEmpty]: Start isEmpty. Operand 772 states. [2019-12-19 05:40:07,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 05:40:07,043 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:40:07,044 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:40:07,046 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:40:07,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:40:07,053 INFO L82 PathProgramCache]: Analyzing trace with hash -467632500, now seen corresponding path program 1 times [2019-12-19 05:40:07,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:40:07,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1051297401] [2019-12-19 05:40:07,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:40:07,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:40:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:40:07,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1051297401] [2019-12-19 05:40:07,294 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:40:07,295 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-19 05:40:07,296 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [152640594] [2019-12-19 05:40:07,301 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-19 05:40:07,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:40:07,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-19 05:40:07,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 05:40:07,322 INFO L87 Difference]: Start difference. First operand 772 states. Second operand 3 states. [2019-12-19 05:40:07,448 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:40:07,449 INFO L93 Difference]: Finished difference Result 1298 states and 2630 transitions. [2019-12-19 05:40:07,449 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-19 05:40:07,451 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 35 [2019-12-19 05:40:07,451 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:40:07,483 INFO L225 Difference]: With dead ends: 1298 [2019-12-19 05:40:07,483 INFO L226 Difference]: Without dead ends: 618 [2019-12-19 05:40:07,487 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 [2019-12-19 05:40:07,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2019-12-19 05:40:07,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 410. [2019-12-19 05:40:07,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-12-19 05:40:07,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 802 transitions. [2019-12-19 05:40:07,597 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 802 transitions. Word has length 35 [2019-12-19 05:40:07,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:40:07,598 INFO L462 AbstractCegarLoop]: Abstraction has 410 states and 802 transitions. [2019-12-19 05:40:07,598 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-19 05:40:07,598 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 802 transitions. [2019-12-19 05:40:07,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-19 05:40:07,601 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:40:07,601 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:40:07,601 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:40:07,602 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:40:07,602 INFO L82 PathProgramCache]: Analyzing trace with hash -1375320882, now seen corresponding path program 1 times [2019-12-19 05:40:07,602 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:40:07,603 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580593898] [2019-12-19 05:40:07,603 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:40:07,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:40:07,748 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:40:07,749 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580593898] [2019-12-19 05:40:07,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:40:07,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:40:07,750 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2030649652] [2019-12-19 05:40:07,751 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:40:07,752 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:40:07,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:40:07,752 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:40:07,753 INFO L87 Difference]: Start difference. First operand 410 states and 802 transitions. Second operand 5 states. [2019-12-19 05:40:07,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:40:07,860 INFO L93 Difference]: Finished difference Result 389 states and 752 transitions. [2019-12-19 05:40:07,861 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:40:07,861 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-12-19 05:40:07,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:40:07,863 INFO L225 Difference]: With dead ends: 389 [2019-12-19 05:40:07,863 INFO L226 Difference]: Without dead ends: 335 [2019-12-19 05:40:07,864 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:40:07,868 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2019-12-19 05:40:07,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2019-12-19 05:40:07,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-12-19 05:40:07,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 647 transitions. [2019-12-19 05:40:07,894 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 647 transitions. Word has length 36 [2019-12-19 05:40:07,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:40:07,894 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 647 transitions. [2019-12-19 05:40:07,894 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:40:07,895 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 647 transitions. [2019-12-19 05:40:07,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2019-12-19 05:40:07,896 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:40:07,897 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:40:07,897 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:40:07,898 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:40:07,898 INFO L82 PathProgramCache]: Analyzing trace with hash -1402972, now seen corresponding path program 1 times [2019-12-19 05:40:07,898 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:40:07,898 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229052113] [2019-12-19 05:40:07,898 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:40:07,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:40:08,025 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:40:08,026 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229052113] [2019-12-19 05:40:08,026 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:40:08,026 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-19 05:40:08,026 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [124889382] [2019-12-19 05:40:08,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-19 05:40:08,028 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:40:08,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-19 05:40:08,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 05:40:08,029 INFO L87 Difference]: Start difference. First operand 335 states and 647 transitions. Second operand 3 states. [2019-12-19 05:40:08,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:40:08,048 INFO L93 Difference]: Finished difference Result 352 states and 664 transitions. [2019-12-19 05:40:08,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-19 05:40:08,048 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 49 [2019-12-19 05:40:08,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:40:08,051 INFO L225 Difference]: With dead ends: 352 [2019-12-19 05:40:08,051 INFO L226 Difference]: Without dead ends: 335 [2019-12-19 05:40:08,052 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 [2019-12-19 05:40:08,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 335 states. [2019-12-19 05:40:08,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 335 to 335. [2019-12-19 05:40:08,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 335 states. [2019-12-19 05:40:08,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 335 states to 335 states and 630 transitions. [2019-12-19 05:40:08,064 INFO L78 Accepts]: Start accepts. Automaton has 335 states and 630 transitions. Word has length 49 [2019-12-19 05:40:08,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:40:08,065 INFO L462 AbstractCegarLoop]: Abstraction has 335 states and 630 transitions. [2019-12-19 05:40:08,065 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-19 05:40:08,065 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states and 630 transitions. [2019-12-19 05:40:08,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2019-12-19 05:40:08,070 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:40:08,070 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:40:08,070 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:40:08,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:40:08,071 INFO L82 PathProgramCache]: Analyzing trace with hash 1506273845, now seen corresponding path program 1 times [2019-12-19 05:40:08,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:40:08,071 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [56690214] [2019-12-19 05:40:08,071 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:40:08,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:40:08,183 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:40:08,183 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [56690214] [2019-12-19 05:40:08,184 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:40:08,184 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:40:08,184 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586590014] [2019-12-19 05:40:08,185 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:40:08,185 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:40:08,185 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:40:08,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:40:08,186 INFO L87 Difference]: Start difference. First operand 335 states and 630 transitions. Second operand 5 states. [2019-12-19 05:40:08,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:40:08,250 INFO L93 Difference]: Finished difference Result 415 states and 769 transitions. [2019-12-19 05:40:08,251 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:40:08,251 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 50 [2019-12-19 05:40:08,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:40:08,253 INFO L225 Difference]: With dead ends: 415 [2019-12-19 05:40:08,253 INFO L226 Difference]: Without dead ends: 319 [2019-12-19 05:40:08,254 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:40:08,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2019-12-19 05:40:08,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 319. [2019-12-19 05:40:08,262 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 319 states. [2019-12-19 05:40:08,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 319 states to 319 states and 583 transitions. [2019-12-19 05:40:08,263 INFO L78 Accepts]: Start accepts. Automaton has 319 states and 583 transitions. Word has length 50 [2019-12-19 05:40:08,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:40:08,264 INFO L462 AbstractCegarLoop]: Abstraction has 319 states and 583 transitions. [2019-12-19 05:40:08,264 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:40:08,264 INFO L276 IsEmpty]: Start isEmpty. Operand 319 states and 583 transitions. [2019-12-19 05:40:08,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-19 05:40:08,266 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:40:08,266 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:40:08,266 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:40:08,266 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:40:08,267 INFO L82 PathProgramCache]: Analyzing trace with hash -1923867571, now seen corresponding path program 1 times [2019-12-19 05:40:08,267 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:40:08,267 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [805311490] [2019-12-19 05:40:08,267 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:40:08,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:40:08,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:40:08,303 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [805311490] [2019-12-19 05:40:08,303 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:40:08,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-19 05:40:08,304 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [273825541] [2019-12-19 05:40:08,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-19 05:40:08,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:40:08,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-19 05:40:08,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 05:40:08,305 INFO L87 Difference]: Start difference. First operand 319 states and 583 transitions. Second operand 3 states. [2019-12-19 05:40:08,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:40:08,313 INFO L93 Difference]: Finished difference Result 319 states and 567 transitions. [2019-12-19 05:40:08,314 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-19 05:40:08,314 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 51 [2019-12-19 05:40:08,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:40:08,315 INFO L225 Difference]: With dead ends: 319 [2019-12-19 05:40:08,316 INFO L226 Difference]: Without dead ends: 191 [2019-12-19 05:40:08,316 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 [2019-12-19 05:40:08,317 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2019-12-19 05:40:08,320 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2019-12-19 05:40:08,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2019-12-19 05:40:08,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 327 transitions. [2019-12-19 05:40:08,322 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 327 transitions. Word has length 51 [2019-12-19 05:40:08,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:40:08,322 INFO L462 AbstractCegarLoop]: Abstraction has 191 states and 327 transitions. [2019-12-19 05:40:08,322 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-19 05:40:08,322 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 327 transitions. [2019-12-19 05:40:08,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-19 05:40:08,323 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:40:08,324 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:40:08,324 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:40:08,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:40:08,324 INFO L82 PathProgramCache]: Analyzing trace with hash -1618217943, now seen corresponding path program 2 times [2019-12-19 05:40:08,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:40:08,325 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825588100] [2019-12-19 05:40:08,325 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:40:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:40:08,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:40:08,423 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825588100] [2019-12-19 05:40:08,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:40:08,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:40:08,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455088004] [2019-12-19 05:40:08,424 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:40:08,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:40:08,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:40:08,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:40:08,425 INFO L87 Difference]: Start difference. First operand 191 states and 327 transitions. Second operand 8 states. [2019-12-19 05:40:08,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:40:08,569 INFO L93 Difference]: Finished difference Result 233 states and 398 transitions. [2019-12-19 05:40:08,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:40:08,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 51 [2019-12-19 05:40:08,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:40:08,571 INFO L225 Difference]: With dead ends: 233 [2019-12-19 05:40:08,571 INFO L226 Difference]: Without dead ends: 149 [2019-12-19 05:40:08,571 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2019-12-19 05:40:08,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 149 states. [2019-12-19 05:40:08,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 149 to 149. [2019-12-19 05:40:08,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 149 states. [2019-12-19 05:40:08,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 243 transitions. [2019-12-19 05:40:08,576 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 243 transitions. Word has length 51 [2019-12-19 05:40:08,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:40:08,577 INFO L462 AbstractCegarLoop]: Abstraction has 149 states and 243 transitions. [2019-12-19 05:40:08,577 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:40:08,577 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 243 transitions. [2019-12-19 05:40:08,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-19 05:40:08,578 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:40:08,578 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:40:08,578 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:40:08,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:40:08,579 INFO L82 PathProgramCache]: Analyzing trace with hash 1660013967, now seen corresponding path program 3 times [2019-12-19 05:40:08,579 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:40:08,579 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [901740483] [2019-12-19 05:40:08,580 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:40:08,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:40:08,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:40:08,634 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-19 05:40:08,634 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-19 05:40:08,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:40:08 BasicIcfg [2019-12-19 05:40:08,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:40:08,710 INFO L168 Benchmark]: Toolchain (without parser) took 3206.32 ms. Allocated memory was 143.7 MB in the beginning and 231.2 MB in the end (delta: 87.6 MB). Free memory was 98.7 MB in the beginning and 98.4 MB in the end (delta: 294.2 kB). Peak memory consumption was 87.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:40:08,711 INFO L168 Benchmark]: CDTParser took 0.76 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 05:40:08,718 INFO L168 Benchmark]: CACSL2BoogieTranslator took 744.31 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.5 MB in the beginning and 159.5 MB in the end (delta: -61.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. [2019-12-19 05:40:08,719 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.58 ms. Allocated memory is still 201.3 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:40:08,720 INFO L168 Benchmark]: Boogie Preprocessor took 24.20 ms. Allocated memory is still 201.3 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-19 05:40:08,721 INFO L168 Benchmark]: RCFGBuilder took 506.40 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 133.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. [2019-12-19 05:40:08,722 INFO L168 Benchmark]: TraceAbstraction took 1874.44 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 133.5 MB in the beginning and 98.4 MB in the end (delta: 35.1 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. [2019-12-19 05:40:08,735 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.76 ms. Allocated memory is still 143.7 MB. Free memory was 118.7 MB in the beginning and 118.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 744.31 ms. Allocated memory was 143.7 MB in the beginning and 201.3 MB in the end (delta: 57.7 MB). Free memory was 98.5 MB in the beginning and 159.5 MB in the end (delta: -61.1 MB). Peak memory consumption was 21.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.58 ms. Allocated memory is still 201.3 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.20 ms. Allocated memory is still 201.3 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 506.40 ms. Allocated memory is still 201.3 MB. Free memory was 156.1 MB in the beginning and 133.5 MB in the end (delta: 22.6 MB). Peak memory consumption was 22.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1874.44 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 133.5 MB in the beginning and 98.4 MB in the end (delta: 35.1 MB). Peak memory consumption was 65.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 676]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L683] 0 volatile int stoppingFlag; VAL [stoppingFlag=0] [L684] 0 volatile int pendingIo; VAL [pendingIo=0, stoppingFlag=0] [L685] 0 volatile int stoppingEvent; VAL [pendingIo=0, stoppingEvent=0, stoppingFlag=0] [L686] 0 volatile int stopped; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L726] 0 pthread_t t; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=0] [L727] 0 pendingIo = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L728] 0 stoppingFlag = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L729] 0 stoppingEvent = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L730] 0 stopped = 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L731] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L710] 0 int status; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L688] COND FALSE 0 !(\read(stoppingFlag)) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L719] 1 stoppingFlag = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L703] 1 int pending; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L697] 1 pendingIo-- [L698] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L691] 0 pendingIo = pendingIo + 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L693] 0 return 0; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L711] 0 status = BCSP_IoIncrement() VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L712] COND TRUE 0 status == 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L700] 1 return tmp; VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L704] 1 pending = dec() VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L705] COND TRUE 1 pending == 0 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L706] 1 stoppingEvent = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=1, stoppingFlag=1] [L722] 1 stopped = 1 VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L675] COND TRUE 0 !(cond) VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L676] 0 __VERIFIER_error() VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Result: UNSAFE, OverallTime: 1.6s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 488 SDtfs, 266 SDslu, 862 SDs, 0 SdLazy, 100 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=772occurred 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, 6 MinimizatonAttempts, 208 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 323 NumberOfCodeBlocks, 323 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 266 ConstructedInterpolants, 0 QuantifiedInterpolants, 23037 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...