/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.epf -i ../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 18:51:28,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 18:51:28,492 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 18:51:28,504 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 18:51:28,505 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 18:51:28,506 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 18:51:28,507 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 18:51:28,509 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 18:51:28,511 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 18:51:28,512 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 18:51:28,513 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 18:51:28,514 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 18:51:28,514 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 18:51:28,515 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 18:51:28,516 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 18:51:28,517 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 18:51:28,518 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 18:51:28,519 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 18:51:28,521 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 18:51:28,522 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 18:51:28,524 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 18:51:28,525 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 18:51:28,526 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 18:51:28,527 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 18:51:28,529 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 18:51:28,529 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 18:51:28,530 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 18:51:28,531 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 18:51:28,531 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 18:51:28,532 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 18:51:28,532 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 18:51:28,533 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 18:51:28,534 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 18:51:28,534 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 18:51:28,535 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 18:51:28,536 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 18:51:28,536 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 18:51:28,537 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 18:51:28,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 18:51:28,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 18:51:28,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 18:51:28,539 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2020-04-17 18:51:28,553 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 18:51:28,554 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 18:51:28,555 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 18:51:28,555 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 18:51:28,555 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 18:51:28,555 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 18:51:28,556 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 18:51:28,556 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 18:51:28,556 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 18:51:28,556 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 18:51:28,556 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 18:51:28,557 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 18:51:28,557 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 18:51:28,557 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 18:51:28,557 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 18:51:28,557 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 18:51:28,557 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 18:51:28,558 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 18:51:28,558 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 18:51:28,558 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 18:51:28,558 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 18:51:28,558 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:51:28,559 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 18:51:28,559 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 18:51:28,559 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 18:51:28,559 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 18:51:28,560 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 18:51:28,560 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 18:51:28,560 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 18:51:28,861 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 18:51:28,874 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 18:51:28,878 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 18:51:28,880 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 18:51:28,880 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 18:51:28,881 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-04-17 18:51:28,953 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22b680a9/cd7a63d276b24a96b5f6cadc9bf396c6/FLAGb59392669 [2020-04-17 18:51:29,481 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 18:51:29,482 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/23_lu-fig2.fixed.i [2020-04-17 18:51:29,494 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22b680a9/cd7a63d276b24a96b5f6cadc9bf396c6/FLAGb59392669 [2020-04-17 18:51:29,767 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e22b680a9/cd7a63d276b24a96b5f6cadc9bf396c6 [2020-04-17 18:51:29,775 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 18:51:29,797 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 18:51:29,798 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 18:51:29,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 18:51:29,802 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 18:51:29,803 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:51:29" (1/1) ... [2020-04-17 18:51:29,806 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@58e2b99 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:29, skipping insertion in model container [2020-04-17 18:51:29,806 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 06:51:29" (1/1) ... [2020-04-17 18:51:29,815 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 18:51:29,853 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 18:51:30,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:51:30,379 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 18:51:30,434 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 18:51:30,544 INFO L208 MainTranslator]: Completed translation [2020-04-17 18:51:30,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30 WrapperNode [2020-04-17 18:51:30,545 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 18:51:30,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 18:51:30,546 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 18:51:30,546 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 18:51:30,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,638 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 18:51:30,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 18:51:30,641 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 18:51:30,641 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 18:51:30,651 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,652 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,664 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,664 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,696 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... [2020-04-17 18:51:30,704 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 18:51:30,705 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 18:51:30,705 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 18:51:30,705 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 18:51:30,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 18:51:30,784 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-04-17 18:51:30,785 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-04-17 18:51:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 18:51:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 18:51:30,785 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 18:51:30,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 18:51:30,787 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 18:51:30,789 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 18:51:31,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 18:51:31,648 INFO L295 CfgBuilder]: Removed 7 assume(true) statements. [2020-04-17 18:51:31,653 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:51:31 BoogieIcfgContainer [2020-04-17 18:51:31,653 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 18:51:31,654 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 18:51:31,654 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 18:51:31,658 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 18:51:31,658 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 06:51:29" (1/3) ... [2020-04-17 18:51:31,659 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52210fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:51:31, skipping insertion in model container [2020-04-17 18:51:31,659 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 06:51:30" (2/3) ... [2020-04-17 18:51:31,660 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52210fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 06:51:31, skipping insertion in model container [2020-04-17 18:51:31,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 06:51:31" (3/3) ... [2020-04-17 18:51:31,662 INFO L109 eAbstractionObserver]: Analyzing ICFG 23_lu-fig2.fixed.i [2020-04-17 18:51:31,674 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 18:51:31,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 18:51:31,682 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-04-17 18:51:31,684 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 18:51:31,709 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,709 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,711 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,711 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,713 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,714 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,714 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,714 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,715 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,715 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,718 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,718 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,719 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,719 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,719 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,720 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,720 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,724 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,724 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,724 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,725 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,725 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,725 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_#in~PR_CreateThread__RES| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,726 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~PR_CreateThread__RES~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,726 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,726 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0___VERIFIER_atomic_thr1_~PR_CreateThread__RES not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 18:51:31,739 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-04-17 18:51:31,759 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 18:51:31,760 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 18:51:31,760 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 18:51:31,760 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 18:51:31,760 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 18:51:31,761 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 18:51:31,761 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 18:51:31,761 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 18:51:31,776 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 45 places, 43 transitions, 91 flow [2020-04-17 18:51:31,778 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 91 flow [2020-04-17 18:51:31,811 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2020-04-17 18:51:31,811 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:51:31,816 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2020-04-17 18:51:31,818 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 45 places, 43 transitions, 91 flow [2020-04-17 18:51:31,830 INFO L129 PetriNetUnfolder]: 2/42 cut-off events. [2020-04-17 18:51:31,830 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-04-17 18:51:31,831 INFO L80 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 42 events. 2/42 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 22 event pairs, 0 based on Foata normal form. 0/38 useless extension candidates. Maximal degree in co-relation 30. Up to 2 conditions per place. [2020-04-17 18:51:31,832 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 378 [2020-04-17 18:51:31,833 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 18:51:33,124 INFO L206 etLargeBlockEncoding]: Checked pairs total: 692 [2020-04-17 18:51:33,125 INFO L214 etLargeBlockEncoding]: Total number of compositions: 31 [2020-04-17 18:51:33,129 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 17 places, 14 transitions, 33 flow [2020-04-17 18:51:33,140 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 38 states. [2020-04-17 18:51:33,143 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states. [2020-04-17 18:51:33,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-04-17 18:51:33,150 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:33,151 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-04-17 18:51:33,151 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:33,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:33,158 INFO L82 PathProgramCache]: Analyzing trace with hash 10713486, now seen corresponding path program 1 times [2020-04-17 18:51:33,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:33,169 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427285315] [2020-04-17 18:51:33,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:33,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:33,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:33,349 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427285315] [2020-04-17 18:51:33,350 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:33,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-04-17 18:51:33,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268218871] [2020-04-17 18:51:33,357 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:33,358 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:33,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:33,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:33,383 INFO L87 Difference]: Start difference. First operand 38 states. Second operand 3 states. [2020-04-17 18:51:33,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:33,434 INFO L93 Difference]: Finished difference Result 29 states and 50 transitions. [2020-04-17 18:51:33,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:33,437 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-04-17 18:51:33,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:33,465 INFO L225 Difference]: With dead ends: 29 [2020-04-17 18:51:33,465 INFO L226 Difference]: Without dead ends: 22 [2020-04-17 18:51:33,467 INFO L678 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 [2020-04-17 18:51:33,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-04-17 18:51:33,507 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-04-17 18:51:33,509 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-04-17 18:51:33,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 38 transitions. [2020-04-17 18:51:33,513 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 38 transitions. Word has length 4 [2020-04-17 18:51:33,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:33,514 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 38 transitions. [2020-04-17 18:51:33,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:33,515 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 38 transitions. [2020-04-17 18:51:33,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-04-17 18:51:33,516 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:33,516 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-04-17 18:51:33,516 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:33,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:33,517 INFO L82 PathProgramCache]: Analyzing trace with hash 332126608, now seen corresponding path program 1 times [2020-04-17 18:51:33,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:33,518 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834012525] [2020-04-17 18:51:33,518 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:33,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:33,612 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:33,613 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834012525] [2020-04-17 18:51:33,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:33,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:51:33,614 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28291570] [2020-04-17 18:51:33,615 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 18:51:33,615 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:33,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 18:51:33,616 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:33,616 INFO L87 Difference]: Start difference. First operand 22 states and 38 transitions. Second operand 3 states. [2020-04-17 18:51:33,624 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:33,624 INFO L93 Difference]: Finished difference Result 21 states and 35 transitions. [2020-04-17 18:51:33,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 18:51:33,625 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-04-17 18:51:33,625 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:33,626 INFO L225 Difference]: With dead ends: 21 [2020-04-17 18:51:33,626 INFO L226 Difference]: Without dead ends: 18 [2020-04-17 18:51:33,627 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 18:51:33,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-04-17 18:51:33,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-04-17 18:51:33,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-04-17 18:51:33,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 27 transitions. [2020-04-17 18:51:33,631 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 27 transitions. Word has length 5 [2020-04-17 18:51:33,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:33,632 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 27 transitions. [2020-04-17 18:51:33,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 18:51:33,632 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 27 transitions. [2020-04-17 18:51:33,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-04-17 18:51:33,633 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:33,633 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:33,633 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:33,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:33,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1337957644, now seen corresponding path program 1 times [2020-04-17 18:51:33,634 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:33,634 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316760974] [2020-04-17 18:51:33,634 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:33,697 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:33,698 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316760974] [2020-04-17 18:51:33,698 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:33,698 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 18:51:33,699 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491666707] [2020-04-17 18:51:33,699 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:51:33,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:33,700 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:51:33,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:51:33,701 INFO L87 Difference]: Start difference. First operand 18 states and 27 transitions. Second operand 4 states. [2020-04-17 18:51:33,743 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:33,744 INFO L93 Difference]: Finished difference Result 14 states and 19 transitions. [2020-04-17 18:51:33,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 18:51:33,745 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-04-17 18:51:33,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:33,745 INFO L225 Difference]: With dead ends: 14 [2020-04-17 18:51:33,746 INFO L226 Difference]: Without dead ends: 14 [2020-04-17 18:51:33,746 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 18:51:33,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-04-17 18:51:33,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-04-17 18:51:33,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-04-17 18:51:33,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 19 transitions. [2020-04-17 18:51:33,751 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 19 transitions. Word has length 7 [2020-04-17 18:51:33,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:33,752 INFO L479 AbstractCegarLoop]: Abstraction has 14 states and 19 transitions. [2020-04-17 18:51:33,752 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:51:33,752 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 19 transitions. [2020-04-17 18:51:33,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-04-17 18:51:33,753 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 18:51:33,753 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 18:51:33,756 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-04-17 18:51:33,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 18:51:33,756 INFO L82 PathProgramCache]: Analyzing trace with hash 1550853615, now seen corresponding path program 1 times [2020-04-17 18:51:33,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 18:51:33,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1831438204] [2020-04-17 18:51:33,757 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 18:51:33,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 18:51:33,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 18:51:33,842 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1831438204] [2020-04-17 18:51:33,842 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 18:51:33,842 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-04-17 18:51:33,842 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [99886804] [2020-04-17 18:51:33,843 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 18:51:33,843 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 18:51:33,843 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 18:51:33,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:51:33,844 INFO L87 Difference]: Start difference. First operand 14 states and 19 transitions. Second operand 4 states. [2020-04-17 18:51:33,850 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 18:51:33,850 INFO L93 Difference]: Finished difference Result 13 states and 18 transitions. [2020-04-17 18:51:33,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 18:51:33,851 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-04-17 18:51:33,851 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 18:51:33,852 INFO L225 Difference]: With dead ends: 13 [2020-04-17 18:51:33,852 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 18:51:33,852 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 18:51:33,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 18:51:33,853 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 18:51:33,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 18:51:33,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 18:51:33,853 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 9 [2020-04-17 18:51:33,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 18:51:33,854 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 18:51:33,854 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 18:51:33,854 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 18:51:33,854 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 18:51:33,858 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 06:51:33 BasicIcfg [2020-04-17 18:51:33,858 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 18:51:33,861 INFO L168 Benchmark]: Toolchain (without parser) took 4083.46 ms. Allocated memory was 142.1 MB in the beginning and 255.3 MB in the end (delta: 113.2 MB). Free memory was 98.7 MB in the beginning and 177.9 MB in the end (delta: -79.1 MB). Peak memory consumption was 34.1 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:33,862 INFO L168 Benchmark]: CDTParser took 1.14 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-17 18:51:33,863 INFO L168 Benchmark]: CACSL2BoogieTranslator took 747.25 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 96.8 MB in the beginning and 158.1 MB in the end (delta: -61.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:33,864 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.11 ms. Allocated memory is still 199.8 MB. Free memory was 158.1 MB in the beginning and 155.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:33,865 INFO L168 Benchmark]: Boogie Preprocessor took 64.37 ms. Allocated memory is still 199.8 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:33,866 INFO L168 Benchmark]: RCFGBuilder took 948.44 ms. Allocated memory is still 199.8 MB. Free memory was 154.4 MB in the beginning and 106.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. [2020-04-17 18:51:33,866 INFO L168 Benchmark]: TraceAbstraction took 2204.30 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 106.1 MB in the beginning and 177.9 MB in the end (delta: -71.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-04-17 18:51:33,871 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.14 ms. Allocated memory is still 142.1 MB. Free memory was 118.4 MB in the beginning and 118.2 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 747.25 ms. Allocated memory was 142.1 MB in the beginning and 199.8 MB in the end (delta: 57.7 MB). Free memory was 96.8 MB in the beginning and 158.1 MB in the end (delta: -61.3 MB). Peak memory consumption was 21.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 94.11 ms. Allocated memory is still 199.8 MB. Free memory was 158.1 MB in the beginning and 155.8 MB in the end (delta: 2.3 MB). Peak memory consumption was 2.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 64.37 ms. Allocated memory is still 199.8 MB. Free memory was 155.8 MB in the beginning and 154.4 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 948.44 ms. Allocated memory is still 199.8 MB. Free memory was 154.4 MB in the beginning and 106.8 MB in the end (delta: 47.5 MB). Peak memory consumption was 47.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2204.30 ms. Allocated memory was 199.8 MB in the beginning and 255.3 MB in the end (delta: 55.6 MB). Free memory was 106.1 MB in the beginning and 177.9 MB in the end (delta: -71.8 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: 1.3s, 45 ProgramPointsBefore, 17 ProgramPointsAfterwards, 43 TransitionsBefore, 14 TransitionsAfterwards, 378 CoEnabledTransitionPairs, 5 FixpointIterations, 10 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 192 VarBasedMoverChecksPositive, 30 VarBasedMoverChecksNegative, 26 SemBasedMoverChecksPositive, 21 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 692 CheckedPairsTotal, 31 TotalNumberOfCompositions - PositiveResult [Line: 696]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 710]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 42 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 39 SDtfs, 19 SDslu, 20 SDs, 0 SdLazy, 24 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=38occurred 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 25 NumberOfCodeBlocks, 25 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 459 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...