/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-507b705 [2020-09-11 15:58:25,379 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-11 15:58:25,383 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-11 15:58:25,409 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-11 15:58:25,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-11 15:58:25,411 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-11 15:58:25,412 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-11 15:58:25,414 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-11 15:58:25,416 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-11 15:58:25,417 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-11 15:58:25,418 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-11 15:58:25,420 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-11 15:58:25,420 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-11 15:58:25,421 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-11 15:58:25,422 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-11 15:58:25,424 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-11 15:58:25,425 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-11 15:58:25,426 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-11 15:58:25,428 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-11 15:58:25,430 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-11 15:58:25,431 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-11 15:58:25,433 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-11 15:58:25,434 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-11 15:58:25,435 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-11 15:58:25,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-11 15:58:25,446 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-11 15:58:25,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-11 15:58:25,449 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-11 15:58:25,450 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-11 15:58:25,452 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-11 15:58:25,452 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-11 15:58:25,454 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-11 15:58:25,454 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-11 15:58:25,454 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-11 15:58:25,455 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-11 15:58:25,463 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-11 15:58:25,464 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-11 15:58:25,518 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-11 15:58:25,519 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-11 15:58:25,520 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-11 15:58:25,520 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-11 15:58:25,520 INFO L138 SettingsManager]: * Use SBE=true [2020-09-11 15:58:25,521 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-11 15:58:25,521 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-11 15:58:25,522 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-11 15:58:25,522 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-11 15:58:25,522 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-11 15:58:25,522 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-11 15:58:25,522 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-11 15:58:25,523 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-11 15:58:25,523 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-11 15:58:25,523 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-11 15:58:25,523 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-11 15:58:25,523 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-11 15:58:25,525 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-11 15:58:25,525 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-11 15:58:25,525 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-11 15:58:25,525 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-11 15:58:25,525 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-11 15:58:25,526 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-11 15:58:25,526 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-11 15:58:25,526 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-11 15:58:25,527 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-11 15:58:25,527 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-11 15:58:25,527 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-11 15:58:25,527 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-11 15:58:25,527 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-11 15:58:25,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-11 15:58:26,007 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-11 15:58:26,013 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-11 15:58:26,015 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-11 15:58:26,016 INFO L275 PluginConnector]: CDTParser initialized [2020-09-11 15:58:26,017 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-09-11 15:58:26,112 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ab1fff1b/bf381844d2c54b0680636b07f3329105/FLAGacb3b6812 [2020-09-11 15:58:26,755 INFO L306 CDTParser]: Found 1 translation units. [2020-09-11 15:58:26,756 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-lit/qw2004-1.i [2020-09-11 15:58:26,775 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ab1fff1b/bf381844d2c54b0680636b07f3329105/FLAGacb3b6812 [2020-09-11 15:58:27,011 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6ab1fff1b/bf381844d2c54b0680636b07f3329105 [2020-09-11 15:58:27,023 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-11 15:58:27,030 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-11 15:58:27,031 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-11 15:58:27,031 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-11 15:58:27,036 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-11 15:58:27,037 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6db7a34c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27, skipping insertion in model container [2020-09-11 15:58:27,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-11 15:58:27,101 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-11 15:58:27,589 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:58:27,603 INFO L203 MainTranslator]: Completed pre-run [2020-09-11 15:58:27,651 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-11 15:58:27,734 INFO L208 MainTranslator]: Completed translation [2020-09-11 15:58:27,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27 WrapperNode [2020-09-11 15:58:27,735 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-11 15:58:27,736 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-11 15:58:27,736 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-11 15:58:27,736 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-11 15:58:27,747 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,766 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,800 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-11 15:58:27,801 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-11 15:58:27,801 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-11 15:58:27,801 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-11 15:58:27,813 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,813 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,816 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,817 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,823 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,826 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,828 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... [2020-09-11 15:58:27,832 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-11 15:58:27,832 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-11 15:58:27,832 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-11 15:58:27,833 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-11 15:58:27,834 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-11 15:58:27,921 INFO L130 BoogieDeclarations]: Found specification of procedure BCSP_PnpStop [2020-09-11 15:58:27,922 INFO L138 BoogieDeclarations]: Found implementation of procedure BCSP_PnpStop [2020-09-11 15:58:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-11 15:58:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-09-11 15:58:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-11 15:58:27,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-11 15:58:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-09-11 15:58:27,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-11 15:58:27,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-11 15:58:27,926 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-11 15:58:28,454 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-11 15:58:28,454 INFO L295 CfgBuilder]: Removed 20 assume(true) statements. [2020-09-11 15:58:28,459 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:58:28 BoogieIcfgContainer [2020-09-11 15:58:28,460 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-11 15:58:28,461 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-11 15:58:28,461 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-11 15:58:28,465 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-11 15:58:28,466 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.09 03:58:27" (1/3) ... [2020-09-11 15:58:28,466 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498f4036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:58:28, skipping insertion in model container [2020-09-11 15:58:28,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.09 03:58:27" (2/3) ... [2020-09-11 15:58:28,467 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@498f4036 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.09 03:58:28, skipping insertion in model container [2020-09-11 15:58:28,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.09 03:58:28" (3/3) ... [2020-09-11 15:58:28,470 INFO L109 eAbstractionObserver]: Analyzing ICFG qw2004-1.i [2020-09-11 15:58:28,482 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-11 15:58:28,482 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-11 15:58:28,493 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-11 15:58:28,495 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-11 15:58:28,524 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,525 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,525 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,525 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,526 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,526 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,526 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,526 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,527 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,527 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,527 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,527 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,528 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,528 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,528 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,528 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,529 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,529 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,529 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,529 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,530 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,530 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,530 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,530 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,531 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,531 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,531 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,532 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,532 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,532 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,537 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,537 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,538 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_dec_~tmp~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,538 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,538 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,539 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,539 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_dec_#t~post2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,539 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,539 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,540 WARN L313 ript$VariableManager]: TermVariabe BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_~pending~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,540 WARN L313 ript$VariableManager]: TermVariabe |BCSP_PnpStopThread1of1ForFork0_BCSP_IoDecrement_#t~ret3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-11 15:58:28,566 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-09-11 15:58:28,596 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-11 15:58:28,596 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-11 15:58:28,596 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-11 15:58:28,597 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-11 15:58:28,597 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-11 15:58:28,597 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-11 15:58:28,597 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-11 15:58:28,597 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-11 15:58:28,615 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 86 transitions, 177 flow [2020-09-11 15:58:28,617 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 86 transitions, 177 flow [2020-09-11 15:58:28,666 INFO L129 PetriNetUnfolder]: 6/85 cut-off events. [2020-09-11 15:58:28,666 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:58:28,673 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-09-11 15:58:28,677 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 84 places, 86 transitions, 177 flow [2020-09-11 15:58:28,702 INFO L129 PetriNetUnfolder]: 6/85 cut-off events. [2020-09-11 15:58:28,702 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-11 15:58:28,704 INFO L80 FinitePrefix]: Finished finitePrefix Result has 89 conditions, 85 events. 6/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 84 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 69. Up to 3 conditions per place. [2020-09-11 15:58:28,707 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2160 [2020-09-11 15:58:28,708 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-11 15:58:30,918 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-11 15:58:30,919 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-11 15:58:30,926 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-11 15:58:30,926 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-11 15:58:30,955 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-11 15:58:30,955 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-11 15:58:30,962 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 11, 1] term [2020-09-11 15:58:30,962 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-09-11 15:58:30,970 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2372 [2020-09-11 15:58:30,970 INFO L214 etLargeBlockEncoding]: Total number of compositions: 96 [2020-09-11 15:58:30,975 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 16 places, 13 transitions, 31 flow [2020-09-11 15:58:30,987 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 32 states. [2020-09-11 15:58:30,989 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2020-09-11 15:58:30,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-09-11 15:58:30,998 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:58:30,999 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-09-11 15:58:30,999 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:58:31,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:58:31,007 INFO L82 PathProgramCache]: Analyzing trace with hash 11174652, now seen corresponding path program 1 times [2020-09-11 15:58:31,020 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:58:31,021 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1858021977] [2020-09-11 15:58:31,021 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:58:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:58:31,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:58:31,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1858021977] [2020-09-11 15:58:31,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:58:31,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-09-11 15:58:31,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225399199] [2020-09-11 15:58:31,229 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-11 15:58:31,229 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:58:31,245 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-11 15:58:31,245 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-11 15:58:31,247 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 3 states. [2020-09-11 15:58:31,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:58:31,283 INFO L93 Difference]: Finished difference Result 31 states and 50 transitions. [2020-09-11 15:58:31,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-11 15:58:31,285 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-09-11 15:58:31,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:58:31,297 INFO L225 Difference]: With dead ends: 31 [2020-09-11 15:58:31,298 INFO L226 Difference]: Without dead ends: 13 [2020-09-11 15:58:31,300 INFO L675 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 [2020-09-11 15:58:31,322 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-09-11 15:58:31,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-09-11 15:58:31,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-09-11 15:58:31,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 16 transitions. [2020-09-11 15:58:31,344 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 16 transitions. Word has length 4 [2020-09-11 15:58:31,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:58:31,344 INFO L479 AbstractCegarLoop]: Abstraction has 13 states and 16 transitions. [2020-09-11 15:58:31,344 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-11 15:58:31,344 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 16 transitions. [2020-09-11 15:58:31,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:58:31,345 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:58:31,345 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:58:31,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-11 15:58:31,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:58:31,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:58:31,347 INFO L82 PathProgramCache]: Analyzing trace with hash -1422714602, now seen corresponding path program 1 times [2020-09-11 15:58:31,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:58:31,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1131773637] [2020-09-11 15:58:31,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:58:31,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:58:31,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:58:31,472 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1131773637] [2020-09-11 15:58:31,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:58:31,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 15:58:31,473 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217626012] [2020-09-11 15:58:31,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-11 15:58:31,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:58:31,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-11 15:58:31,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-11 15:58:31,476 INFO L87 Difference]: Start difference. First operand 13 states and 16 transitions. Second operand 7 states. [2020-09-11 15:58:31,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:58:31,555 INFO L93 Difference]: Finished difference Result 17 states and 19 transitions. [2020-09-11 15:58:31,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-11 15:58:31,555 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 8 [2020-09-11 15:58:31,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:58:31,556 INFO L225 Difference]: With dead ends: 17 [2020-09-11 15:58:31,556 INFO L226 Difference]: Without dead ends: 9 [2020-09-11 15:58:31,557 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-09-11 15:58:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-09-11 15:58:31,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-09-11 15:58:31,559 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-09-11 15:58:31,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 8 transitions. [2020-09-11 15:58:31,560 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 8 transitions. Word has length 8 [2020-09-11 15:58:31,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:58:31,560 INFO L479 AbstractCegarLoop]: Abstraction has 9 states and 8 transitions. [2020-09-11 15:58:31,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-11 15:58:31,561 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 8 transitions. [2020-09-11 15:58:31,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-11 15:58:31,561 INFO L414 BasicCegarLoop]: Found error trace [2020-09-11 15:58:31,561 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-11 15:58:31,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-11 15:58:31,562 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-11 15:58:31,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-11 15:58:31,562 INFO L82 PathProgramCache]: Analyzing trace with hash -786886622, now seen corresponding path program 2 times [2020-09-11 15:58:31,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-11 15:58:31,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [233118834] [2020-09-11 15:58:31,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-11 15:58:31,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-11 15:58:31,727 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-11 15:58:31,727 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [233118834] [2020-09-11 15:58:31,727 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-11 15:58:31,727 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-11 15:58:31,728 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1959285775] [2020-09-11 15:58:31,729 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-11 15:58:31,729 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-11 15:58:31,729 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-11 15:58:31,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:58:31,730 INFO L87 Difference]: Start difference. First operand 9 states and 8 transitions. Second operand 6 states. [2020-09-11 15:58:31,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-11 15:58:31,750 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-09-11 15:58:31,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-11 15:58:31,751 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2020-09-11 15:58:31,751 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-11 15:58:31,751 INFO L225 Difference]: With dead ends: 7 [2020-09-11 15:58:31,752 INFO L226 Difference]: Without dead ends: 0 [2020-09-11 15:58:31,752 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-09-11 15:58:31,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-11 15:58:31,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-11 15:58:31,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-11 15:58:31,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-11 15:58:31,753 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2020-09-11 15:58:31,753 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-11 15:58:31,754 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-11 15:58:31,754 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-11 15:58:31,754 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-11 15:58:31,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-11 15:58:31,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-11 15:58:31,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.09 03:58:31 BasicIcfg [2020-09-11 15:58:31,759 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-11 15:58:31,763 INFO L168 Benchmark]: Toolchain (without parser) took 4736.19 ms. Allocated memory was 146.8 MB in the beginning and 248.5 MB in the end (delta: 101.7 MB). Free memory was 101.8 MB in the beginning and 149.7 MB in the end (delta: -47.9 MB). Peak memory consumption was 53.8 MB. Max. memory is 7.1 GB. [2020-09-11 15:58:31,764 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-11 15:58:31,765 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.33 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 162.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2020-09-11 15:58:31,766 INFO L168 Benchmark]: Boogie Procedure Inliner took 64.84 ms. Allocated memory is still 204.5 MB. Free memory was 162.1 MB in the beginning and 160.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2020-09-11 15:58:31,767 INFO L168 Benchmark]: Boogie Preprocessor took 30.92 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 158.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2020-09-11 15:58:31,768 INFO L168 Benchmark]: RCFGBuilder took 627.71 ms. Allocated memory is still 204.5 MB. Free memory was 158.2 MB in the beginning and 132.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2020-09-11 15:58:31,769 INFO L168 Benchmark]: TraceAbstraction took 3298.14 ms. Allocated memory was 204.5 MB in the beginning and 248.5 MB in the end (delta: 44.0 MB). Free memory was 131.9 MB in the beginning and 149.7 MB in the end (delta: -17.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-11 15:58:31,773 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 146.8 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.33 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 101.2 MB in the beginning and 162.1 MB in the end (delta: -60.9 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 64.84 ms. Allocated memory is still 204.5 MB. Free memory was 162.1 MB in the beginning and 160.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.92 ms. Allocated memory is still 204.5 MB. Free memory was 160.1 MB in the beginning and 158.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 627.71 ms. Allocated memory is still 204.5 MB. Free memory was 158.2 MB in the beginning and 132.5 MB in the end (delta: 25.6 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3298.14 ms. Allocated memory was 204.5 MB in the beginning and 248.5 MB in the end (delta: 44.0 MB). Free memory was 131.9 MB in the beginning and 149.7 MB in the end (delta: -17.8 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 84 ProgramPointsBefore, 16 ProgramPointsAfterwards, 86 TransitionsBefore, 13 TransitionsAfterwards, 2160 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 61 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 21 ConcurrentYvCompositions, 5 ChoiceCompositions, 1329 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 13 SemBasedMoverChecksPositive, 32 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 2372 CheckedPairsTotal, 96 TotalNumberOfCompositions - PositiveResult [Line: 679]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 81 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3.1s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 21 SDtfs, 19 SDslu, 16 SDs, 0 SdLazy, 45 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 601 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 correct! Received shutdown request...