/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-12 00:20:27,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-12 00:20:27,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-12 00:20:27,183 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-12 00:20:27,184 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-12 00:20:27,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-12 00:20:27,192 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-12 00:20:27,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-12 00:20:27,203 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-12 00:20:27,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-12 00:20:27,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-12 00:20:27,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-12 00:20:27,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-12 00:20:27,216 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-12 00:20:27,218 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-12 00:20:27,220 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-12 00:20:27,222 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-12 00:20:27,226 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-12 00:20:27,233 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-12 00:20:27,241 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-12 00:20:27,243 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-12 00:20:27,245 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-12 00:20:27,246 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-12 00:20:27,249 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-12 00:20:27,257 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-11-12 00:20:27,263 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-12 00:20:27,263 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-12 00:20:27,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-12 00:20:27,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-12 00:20:27,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-12 00:20:27,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-12 00:20:27,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-12 00:20:27,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-12 00:20:27,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-12 00:20:27,270 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-12 00:20:27,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-12 00:20:27,272 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-SemanticLbe.epf [2020-11-12 00:20:27,330 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-12 00:20:27,330 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-12 00:20:27,334 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-12 00:20:27,335 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-12 00:20:27,335 INFO L138 SettingsManager]: * Use SBE=true [2020-11-12 00:20:27,335 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-12 00:20:27,335 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-12 00:20:27,336 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-12 00:20:27,336 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-12 00:20:27,336 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-12 00:20:27,337 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-12 00:20:27,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-12 00:20:27,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-12 00:20:27,338 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-12 00:20:27,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-12 00:20:27,338 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-12 00:20:27,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-12 00:20:27,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-12 00:20:27,339 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-12 00:20:27,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-12 00:20:27,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-12 00:20:27,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 00:20:27,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-12 00:20:27,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-12 00:20:27,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-12 00:20:27,341 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-12 00:20:27,341 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-12 00:20:27,341 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-12 00:20:27,342 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-12 00:20:27,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-12 00:20:27,835 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-12 00:20:27,838 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-12 00:20:27,839 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-12 00:20:27,840 INFO L275 PluginConnector]: CDTParser initialized [2020-11-12 00:20:27,841 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2020-11-12 00:20:27,917 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9887596f2/f04b51804c4743f2874a8d8e803190e0/FLAGf4f0d7d23 [2020-11-12 00:20:28,660 INFO L306 CDTParser]: Found 1 translation units. [2020-11-12 00:20:28,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2020-11-12 00:20:28,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9887596f2/f04b51804c4743f2874a8d8e803190e0/FLAGf4f0d7d23 [2020-11-12 00:20:28,866 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9887596f2/f04b51804c4743f2874a8d8e803190e0 [2020-11-12 00:20:28,869 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-12 00:20:28,879 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-12 00:20:28,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-12 00:20:28,884 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-12 00:20:28,888 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-12 00:20:28,889 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:20:28" (1/1) ... [2020-11-12 00:20:28,899 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15aaa121 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:28, skipping insertion in model container [2020-11-12 00:20:28,899 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.11 12:20:28" (1/1) ... [2020-11-12 00:20:28,908 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-12 00:20:28,978 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-12 00:20:29,462 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 00:20:29,484 INFO L203 MainTranslator]: Completed pre-run [2020-11-12 00:20:29,568 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-12 00:20:29,747 INFO L208 MainTranslator]: Completed translation [2020-11-12 00:20:29,749 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29 WrapperNode [2020-11-12 00:20:29,750 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-12 00:20:29,752 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-12 00:20:29,752 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-12 00:20:29,753 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-12 00:20:29,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,804 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-12 00:20:29,850 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-12 00:20:29,851 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-12 00:20:29,851 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-12 00:20:29,865 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,865 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,893 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,896 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,899 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... [2020-11-12 00:20:29,906 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-12 00:20:29,907 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-12 00:20:29,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-12 00:20:29,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-12 00:20:29,910 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-12 00:20:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2020-11-12 00:20:29,979 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2020-11-12 00:20:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-12 00:20:29,979 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-12 00:20:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-12 00:20:29,980 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-12 00:20:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-12 00:20:29,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-12 00:20:29,982 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-12 00:20:29,982 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-12 00:20:29,984 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-12 00:20:30,576 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-12 00:20:30,577 INFO L298 CfgBuilder]: Removed 22 assume(true) statements. [2020-11-12 00:20:30,579 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:20:30 BoogieIcfgContainer [2020-11-12 00:20:30,580 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-12 00:20:30,582 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-12 00:20:30,582 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-12 00:20:30,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-12 00:20:30,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.11 12:20:28" (1/3) ... [2020-11-12 00:20:30,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4032dba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:20:30, skipping insertion in model container [2020-11-12 00:20:30,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.11 12:20:29" (2/3) ... [2020-11-12 00:20:30,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4032dba2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.11 12:20:30, skipping insertion in model container [2020-11-12 00:20:30,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.11 12:20:30" (3/3) ... [2020-11-12 00:20:30,589 INFO L111 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2020-11-12 00:20:30,607 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-12 00:20:30,607 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-12 00:20:30,611 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-12 00:20:30,613 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-12 00:20:30,647 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,647 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,647 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,648 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,648 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,648 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,649 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,649 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,649 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,649 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,650 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,650 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,650 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,650 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,651 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,651 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,651 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,651 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,652 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,652 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,652 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,652 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,653 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,653 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,653 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,654 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,654 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,654 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,654 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,655 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,655 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,655 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,656 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,656 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,656 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,656 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,657 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,657 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,658 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,658 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,658 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,658 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,659 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,659 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,659 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,660 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,660 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,660 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,660 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,660 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,661 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,661 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,661 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,662 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,662 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,662 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,662 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,663 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,663 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,663 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,666 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,666 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,666 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,667 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,667 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,667 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,667 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,668 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,668 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,668 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,668 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-12 00:20:30,672 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-12 00:20:30,685 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-11-12 00:20:30,709 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-12 00:20:30,710 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-12 00:20:30,710 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-12 00:20:30,710 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-12 00:20:30,710 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-12 00:20:30,710 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-12 00:20:30,710 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-12 00:20:30,711 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-12 00:20:30,724 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-12 00:20:30,727 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 93 places, 96 transitions, 197 flow [2020-11-12 00:20:30,731 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 93 places, 96 transitions, 197 flow [2020-11-12 00:20:30,733 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 96 transitions, 197 flow [2020-11-12 00:20:30,784 INFO L129 PetriNetUnfolder]: 7/95 cut-off events. [2020-11-12 00:20:30,785 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-12 00:20:30,790 INFO L84 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 7/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 97 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 75. Up to 3 conditions per place. [2020-11-12 00:20:30,795 INFO L116 LiptonReduction]: Number of co-enabled transitions 2448 [2020-11-12 00:20:33,604 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:33,606 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:33,617 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:33,618 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:34,130 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-12 00:20:34,337 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 54 [2020-11-12 00:20:34,780 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:34,781 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:34,787 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:34,787 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:35,328 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-12 00:20:35,665 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 76 [2020-11-12 00:20:35,766 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:35,766 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:35,777 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:35,778 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:35,937 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:35,937 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:35,950 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:35,953 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:35,974 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:35,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:35,985 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 1] term [2020-11-12 00:20:35,986 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-11-12 00:20:36,036 INFO L131 LiptonReduction]: Checked pairs total: 2530 [2020-11-12 00:20:36,036 INFO L133 LiptonReduction]: Total number of compositions: 107 [2020-11-12 00:20:36,046 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 15 transitions, 35 flow [2020-11-12 00:20:36,055 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 37 states, 35 states have (on average 2.0) internal successors, (70), 36 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,057 INFO L276 IsEmpty]: Start isEmpty. Operand has 37 states, 35 states have (on average 2.0) internal successors, (70), 36 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-12 00:20:36,062 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:20:36,063 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-12 00:20:36,063 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:20:36,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:20:36,069 INFO L82 PathProgramCache]: Analyzing trace with hash 12030901, now seen corresponding path program 1 times [2020-11-12 00:20:36,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:20:36,079 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461218312] [2020-11-12 00:20:36,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:20:36,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:20:36,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:20:36,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461218312] [2020-11-12 00:20:36,286 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:20:36,286 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 00:20:36,287 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1367534781] [2020-11-12 00:20:36,293 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 00:20:36,293 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:20:36,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 00:20:36,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 00:20:36,317 INFO L87 Difference]: Start difference. First operand has 37 states, 35 states have (on average 2.0) internal successors, (70), 36 states have internal predecessors, (70), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:20:36,348 INFO L93 Difference]: Finished difference Result 61 states and 102 transitions. [2020-11-12 00:20:36,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 00:20:36,351 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2020-11-12 00:20:36,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:20:36,360 INFO L225 Difference]: With dead ends: 61 [2020-11-12 00:20:36,361 INFO L226 Difference]: Without dead ends: 34 [2020-11-12 00:20:36,362 INFO L749 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 [2020-11-12 00:20:36,381 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-11-12 00:20:36,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 22. [2020-11-12 00:20:36,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 21 states have (on average 1.7619047619047619) internal successors, (37), 21 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 37 transitions. [2020-11-12 00:20:36,400 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 37 transitions. Word has length 4 [2020-11-12 00:20:36,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:20:36,401 INFO L481 AbstractCegarLoop]: Abstraction has 22 states and 37 transitions. [2020-11-12 00:20:36,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,401 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 37 transitions. [2020-11-12 00:20:36,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-12 00:20:36,402 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:20:36,402 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-12 00:20:36,402 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-12 00:20:36,403 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:20:36,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:20:36,403 INFO L82 PathProgramCache]: Analyzing trace with hash 372950292, now seen corresponding path program 1 times [2020-11-12 00:20:36,404 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:20:36,404 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710584589] [2020-11-12 00:20:36,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:20:36,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:20:36,463 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:20:36,464 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710584589] [2020-11-12 00:20:36,464 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:20:36,464 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-12 00:20:36,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55268013] [2020-11-12 00:20:36,466 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 00:20:36,466 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:20:36,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 00:20:36,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 00:20:36,467 INFO L87 Difference]: Start difference. First operand 22 states and 37 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,474 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:20:36,475 INFO L93 Difference]: Finished difference Result 18 states and 29 transitions. [2020-11-12 00:20:36,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 00:20:36,476 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2020-11-12 00:20:36,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:20:36,476 INFO L225 Difference]: With dead ends: 18 [2020-11-12 00:20:36,476 INFO L226 Difference]: Without dead ends: 18 [2020-11-12 00:20:36,477 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 00:20:36,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-12 00:20:36,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-12 00:20:36,481 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.7058823529411764) internal successors, (29), 17 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 29 transitions. [2020-11-12 00:20:36,482 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 29 transitions. Word has length 5 [2020-11-12 00:20:36,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:20:36,482 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 29 transitions. [2020-11-12 00:20:36,482 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 2 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,483 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2020-11-12 00:20:36,483 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-12 00:20:36,483 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:20:36,484 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:20:36,484 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-12 00:20:36,484 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:20:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:20:36,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1598314365, now seen corresponding path program 1 times [2020-11-12 00:20:36,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:20:36,486 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589586861] [2020-11-12 00:20:36,486 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:20:36,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-12 00:20:36,572 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-12 00:20:36,572 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589586861] [2020-11-12 00:20:36,573 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-12 00:20:36,573 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-12 00:20:36,574 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820568049] [2020-11-12 00:20:36,575 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-12 00:20:36,575 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-12 00:20:36,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-12 00:20:36,580 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-12 00:20:36,580 INFO L87 Difference]: Start difference. First operand 18 states and 29 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-12 00:20:36,616 INFO L93 Difference]: Finished difference Result 22 states and 32 transitions. [2020-11-12 00:20:36,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-12 00:20:36,617 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2020-11-12 00:20:36,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-12 00:20:36,617 INFO L225 Difference]: With dead ends: 22 [2020-11-12 00:20:36,618 INFO L226 Difference]: Without dead ends: 18 [2020-11-12 00:20:36,618 INFO L749 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 [2020-11-12 00:20:36,618 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-11-12 00:20:36,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-11-12 00:20:36,622 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 17 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,624 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 25 transitions. [2020-11-12 00:20:36,625 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 25 transitions. Word has length 8 [2020-11-12 00:20:36,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-12 00:20:36,625 INFO L481 AbstractCegarLoop]: Abstraction has 18 states and 25 transitions. [2020-11-12 00:20:36,626 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-12 00:20:36,626 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 25 transitions. [2020-11-12 00:20:36,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-12 00:20:36,628 INFO L486 BasicCegarLoop]: Found error trace [2020-11-12 00:20:36,629 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-12 00:20:36,630 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-12 00:20:36,631 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-12 00:20:36,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-12 00:20:36,635 INFO L82 PathProgramCache]: Analyzing trace with hash -833664676, now seen corresponding path program 1 times [2020-11-12 00:20:36,635 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-12 00:20:36,635 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451725342] [2020-11-12 00:20:36,635 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-12 00:20:36,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-12 00:20:36,689 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-12 00:20:36,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-12 00:20:36,727 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-12 00:20:36,767 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-12 00:20:36,768 INFO L595 BasicCegarLoop]: Counterexample might be feasible [2020-11-12 00:20:36,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-12 00:20:36,802 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.11 12:20:36 BasicIcfg [2020-11-12 00:20:36,802 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-12 00:20:36,804 INFO L168 Benchmark]: Toolchain (without parser) took 7931.22 ms. Allocated memory was 302.0 MB in the beginning and 421.5 MB in the end (delta: 119.5 MB). Free memory was 275.5 MB in the beginning and 276.2 MB in the end (delta: -693.9 kB). Peak memory consumption was 120.6 MB. Max. memory is 16.0 GB. [2020-11-12 00:20:36,805 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 00:20:36,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 866.84 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 275.7 MB in the end (delta: -901.0 kB). Peak memory consumption was 25.6 MB. Max. memory is 16.0 GB. [2020-11-12 00:20:36,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 97.26 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 273.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-11-12 00:20:36,808 INFO L168 Benchmark]: Boogie Preprocessor took 56.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 272.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-12 00:20:36,808 INFO L168 Benchmark]: RCFGBuilder took 672.45 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 246.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. [2020-11-12 00:20:36,810 INFO L168 Benchmark]: TraceAbstraction took 6220.43 ms. Allocated memory was 302.0 MB in the beginning and 421.5 MB in the end (delta: 119.5 MB). Free memory was 246.4 MB in the beginning and 276.2 MB in the end (delta: -29.8 MB). Peak memory consumption was 90.8 MB. Max. memory is 16.0 GB. [2020-11-12 00:20:36,814 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory was 273.1 MB in the beginning and 273.0 MB in the end (delta: 76.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 866.84 ms. Allocated memory is still 302.0 MB. Free memory was 274.8 MB in the beginning and 275.7 MB in the end (delta: -901.0 kB). Peak memory consumption was 25.6 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 97.26 ms. Allocated memory is still 302.0 MB. Free memory was 275.7 MB in the beginning and 273.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 56.09 ms. Allocated memory is still 302.0 MB. Free memory was 273.6 MB in the beginning and 272.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 672.45 ms. Allocated memory is still 302.0 MB. Free memory was 272.6 MB in the beginning and 246.4 MB in the end (delta: 26.2 MB). Peak memory consumption was 27.3 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6220.43 ms. Allocated memory was 302.0 MB in the beginning and 421.5 MB in the end (delta: 119.5 MB). Free memory was 246.4 MB in the beginning and 276.2 MB in the end (delta: -29.8 MB). Peak memory consumption was 90.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1678 VarBasedMoverChecksPositive, 38 VarBasedMoverChecksNegative, 9 SemBasedMoverChecksPositive, 29 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 31 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 5.3s, 93 PlacesBefore, 17 PlacesAfterwards, 96 TransitionsBefore, 15 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 64 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 20 ConcurrentYvCompositions, 5 ChoiceCompositions, 107 TotalNumberOfCompositions, 2530 MoverChecksTotal - CounterExampleResult [Line: 683]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L697] 0 volatile int stoppingFlag; [L698] 0 volatile int pendingIo; [L699] 0 volatile int stoppingEvent; [L700] 0 volatile int stopped; [L740] 0 pthread_t t; [L741] 0 pendingIo = 1 [L742] 0 stoppingFlag = 0 [L743] 0 stoppingEvent = 0 [L744] 0 stopped = 0 [L745] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L724] 0 int status; [L702] COND FALSE 0 !(\read(stoppingFlag)) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] [L733] 1 stoppingFlag = 1 VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=1] [L717] 1 int pending; [L711] 1 pendingIo-- [L712] 1 int tmp = pendingIo; VAL [pendingIo=0, stopped=0, stoppingEvent=0, stoppingFlag=1] [L714] 1 return tmp; [L718] 1 pending = dec() [L719] COND TRUE 1 pending == 0 [L720] 1 stoppingEvent = 1 [L686] COND FALSE 1 !(!cond) [L736] 1 stopped = 1 [L737] 1 return 0; [L705] 0 pendingIo = pendingIo + 1 [L707] 0 return 0; [L725] 0 status = BCSP_IoIncrement() VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] [L726] COND TRUE 0 status == 0 [L689] COND TRUE 0 !(cond) [L683] COND FALSE 0 !(0) [L683] 0 __assert_fail ("0", "assert.h", 6, __extension__ __PRETTY_FUNCTION__) VAL [pendingIo=1, stopped=1, stoppingEvent=1, stoppingFlag=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 90 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 6.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 5.3s, HoareTripleCheckerStatistics: 38 SDtfs, 16 SDslu, 17 SDs, 0 SdLazy, 8 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 14 ConstructedInterpolants, 0 QuantifiedInterpolants, 146 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...