/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-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:54:55,238 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:54:55,240 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:54:55,253 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:54:55,254 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:54:55,255 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:54:55,256 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:54:55,258 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:54:55,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:54:55,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:54:55,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:54:55,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:54:55,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:54:55,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:54:55,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:54:55,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:54:55,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:54:55,268 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:54:55,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:54:55,272 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:54:55,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:54:55,274 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:54:55,275 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:54:55,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:54:55,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 18:54:55,281 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:54:55,282 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:54:55,282 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:54:55,283 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:54:55,284 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:54:55,284 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:54:55,285 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:54:55,285 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:54:55,285 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:54:55,286 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:54:55,287 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:54:55,288 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-MCR.epf [2019-12-27 18:54:55,302 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:54:55,302 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:54:55,303 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:54:55,304 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:54:55,304 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:54:55,304 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:54:55,304 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:54:55,305 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:54:55,305 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:54:55,305 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:54:55,305 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:54:55,305 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:54:55,306 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:54:55,306 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:54:55,306 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:54:55,306 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:54:55,306 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:54:55,307 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:54:55,307 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:54:55,307 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:54:55,307 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:54:55,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:54:55,308 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:54:55,308 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:54:55,308 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:54:55,308 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:54:55,308 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:54:55,309 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:54:55,309 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:54:55,309 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:54:55,309 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:54:55,605 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:54:55,620 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:54:55,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:54:55,625 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:54:55,625 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:54:55,626 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-2.i [2019-12-27 18:54:55,706 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e23dd4d/60adcf52a5b8406b8a58976edbfc46ab/FLAG4a43d68e9 [2019-12-27 18:54:56,239 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:54:56,239 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-lit/qw2004-2.i [2019-12-27 18:54:56,262 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e23dd4d/60adcf52a5b8406b8a58976edbfc46ab/FLAG4a43d68e9 [2019-12-27 18:54:56,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/42e23dd4d/60adcf52a5b8406b8a58976edbfc46ab [2019-12-27 18:54:56,560 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:54:56,562 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:54:56,563 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:54:56,563 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:54:56,567 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:54:56,568 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:54:56" (1/1) ... [2019-12-27 18:54:56,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a930891 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:56, skipping insertion in model container [2019-12-27 18:54:56,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:54:56" (1/1) ... [2019-12-27 18:54:56,578 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:54:56,616 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:54:57,158 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:54:57,176 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:54:57,230 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:54:57,311 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:54:57,311 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57 WrapperNode [2019-12-27 18:54:57,311 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:54:57,312 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:54:57,312 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:54:57,312 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:54:57,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,338 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,363 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:54:57,364 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:54:57,364 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:54:57,364 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:54:57,373 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,374 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,377 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,399 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,402 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,404 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (1/1) ... [2019-12-27 18:54:57,406 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:54:57,407 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:54:57,407 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:54:57,407 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:54:57,408 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (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 [2019-12-27 18:54:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2019-12-27 18:54:57,474 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2019-12-27 18:54:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:54:57,474 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:54:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:54:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:54:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:54:57,475 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:54:57,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:54:57,478 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 18:54:57,931 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:54:57,931 INFO L287 CfgBuilder]: Removed 18 assume(true) statements. [2019-12-27 18:54:57,933 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:54:57 BoogieIcfgContainer [2019-12-27 18:54:57,933 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:54:57,934 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:54:57,934 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:54:57,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:54:57,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:54:56" (1/3) ... [2019-12-27 18:54:57,942 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c68f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:54:57, skipping insertion in model container [2019-12-27 18:54:57,942 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:57" (2/3) ... [2019-12-27 18:54:57,943 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18c68f5a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:54:57, skipping insertion in model container [2019-12-27 18:54:57,943 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:54:57" (3/3) ... [2019-12-27 18:54:57,947 INFO L109 eAbstractionObserver]: Analyzing ICFG qw2004-2.i [2019-12-27 18:54:57,955 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:54:57,956 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:54:57,963 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:54:57,963 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:54:57,986 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,986 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,987 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,987 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,988 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,988 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,988 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,988 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,989 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,989 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,989 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,989 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,990 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,990 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,990 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,991 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,991 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,991 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,991 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,992 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,992 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,992 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,996 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,997 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,997 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,997 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,998 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,998 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,998 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,998 WARN L315 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:57,999 WARN L315 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:58,012 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-27 18:54:58,028 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:54:58,028 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:54:58,028 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:54:58,029 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:54:58,029 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:54:58,029 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:54:58,029 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:54:58,029 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:54:58,042 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 79 places, 80 transitions [2019-12-27 18:54:58,044 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions [2019-12-27 18:54:58,093 INFO L132 PetriNetUnfolder]: 5/79 cut-off events. [2019-12-27 18:54:58,093 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:54:58,100 INFO L76 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 5/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs. 0/73 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2019-12-27 18:54:58,105 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 79 places, 80 transitions [2019-12-27 18:54:58,130 INFO L132 PetriNetUnfolder]: 5/79 cut-off events. [2019-12-27 18:54:58,130 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:54:58,132 INFO L76 FinitePrefix]: Finished finitePrefix Result has 83 conditions, 79 events. 5/79 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 66 event pairs. 0/73 useless extension candidates. Maximal degree in co-relation 63. Up to 3 conditions per place. [2019-12-27 18:54:58,137 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1620 [2019-12-27 18:54:58,138 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:54:59,868 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-27 18:54:59,876 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-27 18:55:00,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-27 18:55:00,189 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-27 18:55:00,208 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1740 [2019-12-27 18:55:00,208 INFO L214 etLargeBlockEncoding]: Total number of compositions: 86 [2019-12-27 18:55:00,214 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 14 transitions [2019-12-27 18:55:00,224 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 30 states. [2019-12-27 18:55:00,226 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states. [2019-12-27 18:55:00,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 18:55:00,233 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:00,234 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 18:55:00,234 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:00,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:00,240 INFO L82 PathProgramCache]: Analyzing trace with hash 9797985, now seen corresponding path program 1 times [2019-12-27 18:55:00,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:00,252 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [749646089] [2019-12-27 18:55:00,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:00,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:00,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:00,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [749646089] [2019-12-27 18:55:00,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:00,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:55:00,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1181425552] [2019-12-27 18:55:00,408 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:00,412 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:00,429 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 5 states and 4 transitions. [2019-12-27 18:55:00,429 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:00,436 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:55:00,436 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:55:00,437 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:00,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:55:00,453 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:55:00,454 INFO L87 Difference]: Start difference. First operand 30 states. Second operand 3 states. [2019-12-27 18:55:00,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:00,486 INFO L93 Difference]: Finished difference Result 48 states and 84 transitions. [2019-12-27 18:55:00,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:55:00,489 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-27 18:55:00,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:00,513 INFO L225 Difference]: With dead ends: 48 [2019-12-27 18:55:00,513 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 18:55:00,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:55:00,535 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 18:55:00,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 18. [2019-12-27 18:55:00,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-12-27 18:55:00,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 29 transitions. [2019-12-27 18:55:00,558 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 29 transitions. Word has length 4 [2019-12-27 18:55:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:00,558 INFO L462 AbstractCegarLoop]: Abstraction has 18 states and 29 transitions. [2019-12-27 18:55:00,558 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:55:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 29 transitions. [2019-12-27 18:55:00,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-27 18:55:00,559 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:00,560 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-27 18:55:00,563 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:00,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:00,564 INFO L82 PathProgramCache]: Analyzing trace with hash 303700615, now seen corresponding path program 1 times [2019-12-27 18:55:00,565 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:00,572 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1973923595] [2019-12-27 18:55:00,572 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:00,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:00,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:00,643 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1973923595] [2019-12-27 18:55:00,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:00,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:55:00,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [555257900] [2019-12-27 18:55:00,644 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:00,644 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:00,646 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 6 states and 5 transitions. [2019-12-27 18:55:00,647 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:00,648 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:55:00,649 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:55:00,649 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:00,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:55:00,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:55:00,662 INFO L87 Difference]: Start difference. First operand 18 states and 29 transitions. Second operand 3 states. [2019-12-27 18:55:00,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:00,667 INFO L93 Difference]: Finished difference Result 15 states and 23 transitions. [2019-12-27 18:55:00,668 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:55:00,668 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2019-12-27 18:55:00,668 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:00,669 INFO L225 Difference]: With dead ends: 15 [2019-12-27 18:55:00,669 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 18:55:00,670 INFO L631 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 [2019-12-27 18:55:00,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 18:55:00,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 18:55:00,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 18:55:00,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 23 transitions. [2019-12-27 18:55:00,673 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 23 transitions. Word has length 5 [2019-12-27 18:55:00,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:00,674 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 23 transitions. [2019-12-27 18:55:00,674 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:55:00,674 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 23 transitions. [2019-12-27 18:55:00,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-12-27 18:55:00,674 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:00,675 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:00,675 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:00,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:00,675 INFO L82 PathProgramCache]: Analyzing trace with hash -201486631, now seen corresponding path program 1 times [2019-12-27 18:55:00,676 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:00,676 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556005819] [2019-12-27 18:55:00,676 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:00,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:00,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:00,761 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556005819] [2019-12-27 18:55:00,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:00,762 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:55:00,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1913867216] [2019-12-27 18:55:00,762 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:00,766 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:00,768 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 11 transitions. [2019-12-27 18:55:00,768 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:00,772 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:55:00,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:55:00,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:00,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:55:00,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:55:00,773 INFO L87 Difference]: Start difference. First operand 15 states and 23 transitions. Second operand 3 states. [2019-12-27 18:55:00,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:00,782 INFO L93 Difference]: Finished difference Result 18 states and 25 transitions. [2019-12-27 18:55:00,782 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:55:00,782 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2019-12-27 18:55:00,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:00,783 INFO L225 Difference]: With dead ends: 18 [2019-12-27 18:55:00,783 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 18:55:00,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:55:00,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 18:55:00,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 18:55:00,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 18:55:00,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 20 transitions. [2019-12-27 18:55:00,787 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 20 transitions. Word has length 7 [2019-12-27 18:55:00,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:00,787 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 20 transitions. [2019-12-27 18:55:00,787 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:55:00,788 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 20 transitions. [2019-12-27 18:55:00,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:55:00,788 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:00,788 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:00,789 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:00,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:00,789 INFO L82 PathProgramCache]: Analyzing trace with hash -1970912570, now seen corresponding path program 1 times [2019-12-27 18:55:00,789 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:00,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408306740] [2019-12-27 18:55:00,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:00,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:00,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:00,840 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408306740] [2019-12-27 18:55:00,840 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:00,840 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 18:55:00,841 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [851904660] [2019-12-27 18:55:00,841 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:00,841 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:00,843 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:55:00,843 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:00,844 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:55:00,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:55:00,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:00,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:55:00,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:55:00,847 INFO L87 Difference]: Start difference. First operand 15 states and 20 transitions. Second operand 3 states. [2019-12-27 18:55:00,860 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:00,860 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-12-27 18:55:00,862 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:55:00,862 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:55:00,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:00,863 INFO L225 Difference]: With dead ends: 15 [2019-12-27 18:55:00,863 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 18:55:00,863 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 [2019-12-27 18:55:00,864 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 18:55:00,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 18:55:00,866 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 18:55:00,866 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-12-27 18:55:00,866 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-12-27 18:55:00,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:00,867 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-12-27 18:55:00,867 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:55:00,867 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-12-27 18:55:00,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:55:00,867 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:00,868 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:00,870 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:00,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:00,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1466848850, now seen corresponding path program 2 times [2019-12-27 18:55:00,870 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:00,873 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1086987824] [2019-12-27 18:55:00,873 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:00,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:55:00,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 18:55:00,954 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1086987824] [2019-12-27 18:55:00,954 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:55:00,954 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 18:55:00,955 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [607515580] [2019-12-27 18:55:00,955 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:55:00,956 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:55:00,957 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 10 transitions. [2019-12-27 18:55:00,957 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:55:00,958 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:55:00,958 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:55:00,958 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:55:00,958 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:55:00,959 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:55:00,959 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2019-12-27 18:55:01,016 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:55:01,016 INFO L93 Difference]: Finished difference Result 13 states and 14 transitions. [2019-12-27 18:55:01,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 18:55:01,018 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-12-27 18:55:01,018 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:55:01,018 INFO L225 Difference]: With dead ends: 13 [2019-12-27 18:55:01,019 INFO L226 Difference]: Without dead ends: 10 [2019-12-27 18:55:01,019 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:55:01,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2019-12-27 18:55:01,021 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2019-12-27 18:55:01,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2019-12-27 18:55:01,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 10 transitions. [2019-12-27 18:55:01,022 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 10 transitions. Word has length 8 [2019-12-27 18:55:01,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:55:01,022 INFO L462 AbstractCegarLoop]: Abstraction has 10 states and 10 transitions. [2019-12-27 18:55:01,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:55:01,023 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 10 transitions. [2019-12-27 18:55:01,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:55:01,025 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:55:01,025 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:55:01,025 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:55:01,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:55:01,026 INFO L82 PathProgramCache]: Analyzing trace with hash -1471836440, now seen corresponding path program 3 times [2019-12-27 18:55:01,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:55:01,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [544564180] [2019-12-27 18:55:01,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:55:01,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:55:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-27 18:55:01,095 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-27 18:55:01,095 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-27 18:55:01,098 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [291] [291] ULTIMATE.startENTRY-->L731-1: Formula: (let ((.cse0 (store |v_#valid_35| 0 0))) (and (= v_~stoppingEvent~0_81 0) (= 0 v_~stopped~0_60) (= |v_#valid_33| (store .cse0 |v_ULTIMATE.start_main_~#t~0.base_26| 1)) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t~0.base_26|)) (= 1 v_~pendingIo~0_88) (< 0 |v_#StackHeapBarrier_9|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t~0.base_26|) (= v_~stoppingFlag~0_47 0) (= |v_#NULL.offset_3| 0) (= 0 |v_#NULL.base_3|) (= (store |v_#length_10| |v_ULTIMATE.start_main_~#t~0.base_26| 4) |v_#length_9|) (= |v_ULTIMATE.start_main_~#t~0.offset_19| 0) (= (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t~0.base_26| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t~0.base_26|) |v_ULTIMATE.start_main_~#t~0.offset_19| 0)) |v_#memory_int_9|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_35|, #memory_int=|v_#memory_int_10|, #length=|v_#length_10|} OutVars{ULTIMATE.start_main_#t~ret7.base=|v_ULTIMATE.start_main_#t~ret7.base_22|, ~stoppingFlag~0=v_~stoppingFlag~0_47, ~stopped~0=v_~stopped~0_60, #NULL.offset=|v_#NULL.offset_3|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_19|, ULTIMATE.start_main_~#t~0.offset=|v_ULTIMATE.start_main_~#t~0.offset_19|, #NULL.base=|v_#NULL.base_3|, ~pendingIo~0=v_~pendingIo~0_88, ~stoppingEvent~0=v_~stoppingEvent~0_81, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~ret7.offset=|v_ULTIMATE.start_main_#t~ret7.offset_22|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_9|, ULTIMATE.start_main_~#t~0.base=|v_ULTIMATE.start_main_~#t~0.base_26|, #length=|v_#length_9|} AuxVars[] AssignedVars[ULTIMATE.start_main_#t~ret7.base, ~stoppingFlag~0, ~stopped~0, #NULL.offset, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_main_~#t~0.offset, #NULL.base, ~pendingIo~0, ~stoppingEvent~0, ULTIMATE.start_main_#t~ret7.offset, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t~0.base, #length] because there is no mapped edge [2019-12-27 18:55:01,099 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [268] [268] L731-2-->L691: Formula: (and (= v_ULTIMATE.start_BCSP_PnpAdd_~arg.offset_8 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|) (= |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8| 0) (= 0 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|) (= v_~stoppingFlag~0_26 0) (= v_ULTIMATE.start_BCSP_PnpAdd_~arg.base_8 |v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8|)) InVars {~stoppingFlag~0=v_~stoppingFlag~0_26} OutVars{ULTIMATE.start_BCSP_PnpAdd_#res.offset=|v_ULTIMATE.start_BCSP_PnpAdd_#res.offset_14|, ULTIMATE.start_BCSP_PnpAdd_~arg.base=v_ULTIMATE.start_BCSP_PnpAdd_~arg.base_8, ULTIMATE.start_BCSP_PnpAdd_#in~arg.base=|v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.base_8|, ~stoppingFlag~0=v_~stoppingFlag~0_26, ULTIMATE.start_BCSP_PnpAdd_#res.base=|v_ULTIMATE.start_BCSP_PnpAdd_#res.base_14|, ULTIMATE.start_BCSP_IoIncrement_#res=|v_ULTIMATE.start_BCSP_IoIncrement_#res_19|, ULTIMATE.start_main_#t~nondet6=|v_ULTIMATE.start_main_#t~nondet6_6|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_16|, ULTIMATE.start_BCSP_PnpAdd_~status~0=v_ULTIMATE.start_BCSP_PnpAdd_~status~0_16, ULTIMATE.start_BCSP_PnpAdd_~arg.offset=v_ULTIMATE.start_BCSP_PnpAdd_~arg.offset_8, ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset=|v_ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset_8|} AuxVars[] AssignedVars[ULTIMATE.start_BCSP_PnpAdd_#res.offset, ULTIMATE.start_BCSP_PnpAdd_~arg.base, ULTIMATE.start_BCSP_PnpAdd_#in~arg.base, ULTIMATE.start_BCSP_PnpAdd_#res.base, ULTIMATE.start_BCSP_IoIncrement_#res, ULTIMATE.start_main_#t~nondet6, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ULTIMATE.start_BCSP_PnpAdd_~status~0, ULTIMATE.start_BCSP_PnpAdd_~arg.offset, ULTIMATE.start_BCSP_PnpAdd_#in~arg.offset] because there is no mapped edge [2019-12-27 18:55:01,099 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [250] [250] BCSP_PnpStopENTRY-->L703: Formula: (and (= v_BCSP_PnpStopThread1of1ForFork0_~arg.offset_4 |v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|) (= v_~stoppingFlag~0_17 1) (= v_BCSP_PnpStopThread1of1ForFork0_~arg.base_4 |v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|)) InVars {BCSP_PnpStopThread1of1ForFork0_#in~arg.offset=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|, BCSP_PnpStopThread1of1ForFork0_#in~arg.base=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|} OutVars{BCSP_PnpStopThread1of1ForFork0_#in~arg.offset=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.offset_4|, ~stoppingFlag~0=v_~stoppingFlag~0_17, BCSP_PnpStopThread1of1ForFork0_~arg.base=v_BCSP_PnpStopThread1of1ForFork0_~arg.base_4, BCSP_PnpStopThread1of1ForFork0_~arg.offset=v_BCSP_PnpStopThread1of1ForFork0_~arg.offset_4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_16|, BCSP_PnpStopThread1of1ForFork0_#in~arg.base=|v_BCSP_PnpStopThread1of1ForFork0_#in~arg.base_4|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_15} AuxVars[] AssignedVars[~stoppingFlag~0, BCSP_PnpStopThread1of1ForFork0_~arg.base, BCSP_PnpStopThread1of1ForFork0_~arg.offset, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0] because there is no mapped edge [2019-12-27 18:55:01,099 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [269] [269] L703-->L704-2: Formula: (and (= v_~pendingIo~0_60 v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_19) (= |v_BCSP_PnpStopThread1of1ForFork0_dec_#res_18| |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_23|) (= v_~pendingIo~0_61 (+ v_~pendingIo~0_60 1)) (= |v_BCSP_PnpStopThread1of1ForFork0_dec_#res_18| v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_19)) InVars {~pendingIo~0=v_~pendingIo~0_61} OutVars{BCSP_PnpStopThread1of1ForFork0_dec_#res=|v_BCSP_PnpStopThread1of1ForFork0_dec_#res_18|, BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0=v_BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0_19, BCSP_PnpStopThread1of1ForFork0_dec_#t~post3=|v_BCSP_PnpStopThread1of1ForFork0_dec_#t~post3_18|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_23|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_23, ~pendingIo~0=v_~pendingIo~0_60} AuxVars[] AssignedVars[BCSP_PnpStopThread1of1ForFork0_dec_#res, BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0, BCSP_PnpStopThread1of1ForFork0_dec_#t~post3, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0, ~pendingIo~0] because there is no mapped edge [2019-12-27 18:55:01,099 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [256] [256] L691-->L711-1: Formula: (and (= |v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_15| |v_ULTIMATE.start_BCSP_IoIncrement_#res_16|) (= 0 |v_ULTIMATE.start_BCSP_IoIncrement_#res_16|) (= v_~pendingIo~0_50 (+ v_~pendingIo~0_51 1))) InVars {~pendingIo~0=v_~pendingIo~0_51} OutVars{ULTIMATE.start_BCSP_IoIncrement_#res=|v_ULTIMATE.start_BCSP_IoIncrement_#res_16|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_15|, ~pendingIo~0=v_~pendingIo~0_50} AuxVars[] AssignedVars[ULTIMATE.start_BCSP_IoIncrement_#res, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ~pendingIo~0] because there is no mapped edge [2019-12-27 18:55:01,099 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [283] [283] L704-2-->BCSP_PnpStopEXIT: Formula: (let ((.cse1 (= 0 v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_32)) (.cse0 (= 1 v_~stopped~0_51)) (.cse2 (= |v_BCSP_PnpStopThread1of1ForFork0_#res.base_25| 0)) (.cse3 (= |v_BCSP_PnpStopThread1of1ForFork0_#res.offset_25| 0)) (.cse4 (= v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_32 |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_41|))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4 (= v_~stoppingEvent~0_61 1)) (and (not .cse1) .cse0 (not (= v_~stoppingEvent~0_62 0)) (<= 0 (+ |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_41| 2147483648)) (<= |v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_41| 2147483647) .cse2 .cse3 .cse4 (= v_~stoppingEvent~0_62 v_~stoppingEvent~0_61)))) InVars {~stoppingEvent~0=v_~stoppingEvent~0_62, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_41|} OutVars{~stoppingEvent~0=v_~stoppingEvent~0_61, BCSP_PnpStopThread1of1ForFork0_#res.base=|v_BCSP_PnpStopThread1of1ForFork0_#res.base_25|, ~stopped~0=v_~stopped~0_51, BCSP_PnpStopThread1of1ForFork0_#res.offset=|v_BCSP_PnpStopThread1of1ForFork0_#res.offset_25|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4=|v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4_40|, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0=v_BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0_32} AuxVars[] AssignedVars[~stoppingEvent~0, BCSP_PnpStopThread1of1ForFork0_#res.base, ~stopped~0, BCSP_PnpStopThread1of1ForFork0_#res.offset, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret4, BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0] because there is no mapped edge [2019-12-27 18:55:01,100 WARN L123 codingBacktranslator]: Skipped backtranslation of ATE [280] [280] L711-1-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (not (= 0 v_~stopped~0_40)) (= v_ULTIMATE.start___VERIFIER_assert_~cond_21 |v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|) (= 0 v_ULTIMATE.start___VERIFIER_assert_~cond_21) (= v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23 0) (= |v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_30| v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23)) InVars {~stopped~0=v_~stopped~0_40, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_30|} OutVars{ULTIMATE.start___VERIFIER_assert_~cond=v_ULTIMATE.start___VERIFIER_assert_~cond_21, ~stopped~0=v_~stopped~0_40, ULTIMATE.start___VERIFIER_assert_#in~cond=|v_ULTIMATE.start___VERIFIER_assert_#in~cond_21|, ULTIMATE.start_BCSP_PnpAdd_#t~ret5=|v_ULTIMATE.start_BCSP_PnpAdd_#t~ret5_29|, ULTIMATE.start_BCSP_PnpAdd_~status~0=v_ULTIMATE.start_BCSP_PnpAdd_~status~0_23} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~cond, ULTIMATE.start___VERIFIER_assert_#in~cond, ULTIMATE.start_BCSP_PnpAdd_#t~ret5, ULTIMATE.start_BCSP_PnpAdd_~status~0] because there is no mapped edge [2019-12-27 18:55:01,110 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:55:01 BasicIcfg [2019-12-27 18:55:01,110 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:55:01,113 INFO L168 Benchmark]: Toolchain (without parser) took 4550.32 ms. Allocated memory was 137.9 MB in the beginning and 249.6 MB in the end (delta: 111.7 MB). Free memory was 101.0 MB in the beginning and 184.4 MB in the end (delta: -83.5 MB). Peak memory consumption was 28.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:55:01,114 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 18:55:01,115 INFO L168 Benchmark]: CACSL2BoogieTranslator took 748.27 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 158.8 MB in the end (delta: -58.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:55:01,115 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 200.8 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 18:55:01,116 INFO L168 Benchmark]: Boogie Preprocessor took 43.07 ms. Allocated memory is still 200.8 MB. Free memory was 156.1 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:55:01,117 INFO L168 Benchmark]: RCFGBuilder took 525.95 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 132.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:55:01,118 INFO L168 Benchmark]: TraceAbstraction took 3176.41 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 131.8 MB in the beginning and 184.4 MB in the end (delta: -52.6 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 18:55:01,122 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.8 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 748.27 ms. Allocated memory was 137.9 MB in the beginning and 200.8 MB in the end (delta: 62.9 MB). Free memory was 100.6 MB in the beginning and 158.8 MB in the end (delta: -58.3 MB). Peak memory consumption was 24.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.46 ms. Allocated memory is still 200.8 MB. Free memory was 158.8 MB in the beginning and 156.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 43.07 ms. Allocated memory is still 200.8 MB. Free memory was 156.1 MB in the beginning and 154.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 525.95 ms. Allocated memory is still 200.8 MB. Free memory was 154.8 MB in the beginning and 132.5 MB in the end (delta: 22.3 MB). Peak memory consumption was 22.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3176.41 ms. Allocated memory was 200.8 MB in the beginning and 249.6 MB in the end (delta: 48.8 MB). Free memory was 131.8 MB in the beginning and 184.4 MB in the end (delta: -52.6 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.1s, 79 ProgramPointsBefore, 14 ProgramPointsAfterwards, 80 TransitionsBefore, 14 TransitionsAfterwards, 1620 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 56 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 3 ChoiceCompositions, 963 VarBasedMoverChecksPositive, 29 VarBasedMoverChecksNegative, 10 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 1740 CheckedPairsTotal, 86 TotalNumberOfCompositions - CounterExampleResult [Line: 676]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L731] FCALL, FORK 0 pthread_create(&t, 0, BCSP_PnpStop, 0) VAL [pendingIo=1, stopped=0, stoppingEvent=0, stoppingFlag=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 76 locations, 1 error locations. Result: UNSAFE, OverallTime: 3.0s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 16 SDslu, 24 SDs, 0 SdLazy, 25 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=30occurred 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, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 548 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...