/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-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 12:51:28,405 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 12:51:28,410 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 12:51:28,456 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 12:51:28,456 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 12:51:28,467 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 12:51:28,469 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 12:51:28,472 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 12:51:28,475 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 12:51:28,478 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 12:51:28,479 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 12:51:28,480 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 12:51:28,482 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 12:51:28,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 12:51:28,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 12:51:28,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 12:51:28,489 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 12:51:28,493 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 12:51:28,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 12:51:28,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 12:51:28,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 12:51:28,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 12:51:28,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 12:51:28,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 12:51:28,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-14 12:51:28,505 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 12:51:28,506 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 12:51:28,507 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 12:51:28,507 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 12:51:28,508 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 12:51:28,508 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 12:51:28,509 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 12:51:28,509 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 12:51:28,510 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 12:51:28,510 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 12:51:28,511 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 12:51:28,512 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 [2020-09-14 12:51:28,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 12:51:28,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 12:51:28,538 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 12:51:28,538 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 12:51:28,539 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 12:51:28,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 12:51:28,539 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 12:51:28,539 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 12:51:28,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 12:51:28,540 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 12:51:28,540 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 12:51:28,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 12:51:28,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 12:51:28,540 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 12:51:28,541 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 12:51:28,541 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 12:51:28,541 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 12:51:28,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 12:51:28,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 12:51:28,542 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 12:51:28,542 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 12:51:28,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 12:51:28,542 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 12:51:28,543 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 12:51:28,543 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 12:51:28,543 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 12:51:28,543 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 12:51:28,543 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 12:51:28,544 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 12:51:28,544 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 12:51:28,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 12:51:29,004 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 12:51:29,009 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 12:51:29,010 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 12:51:29,011 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 12:51:29,012 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-09-14 12:51:29,100 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763752263/d4a5e56d3eb54a7ba501cf5a76aaeeb0/FLAGf85bc7725 [2020-09-14 12:51:29,733 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 12:51:29,734 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-09-14 12:51:29,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763752263/d4a5e56d3eb54a7ba501cf5a76aaeeb0/FLAGf85bc7725 [2020-09-14 12:51:29,962 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/763752263/d4a5e56d3eb54a7ba501cf5a76aaeeb0 [2020-09-14 12:51:29,976 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 12:51:29,981 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 12:51:29,984 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 12:51:29,985 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 12:51:29,989 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 12:51:29,990 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 12:51:29" (1/1) ... [2020-09-14 12:51:29,994 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@757028fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:29, skipping insertion in model container [2020-09-14 12:51:29,994 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 12:51:29" (1/1) ... [2020-09-14 12:51:30,003 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 12:51:30,059 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 12:51:30,566 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 12:51:30,580 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 12:51:30,637 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 12:51:30,705 INFO L208 MainTranslator]: Completed translation [2020-09-14 12:51:30,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30 WrapperNode [2020-09-14 12:51:30,706 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 12:51:30,707 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 12:51:30,707 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 12:51:30,707 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 12:51:30,718 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,736 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 12:51:30,766 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 12:51:30,766 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 12:51:30,766 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 12:51:30,778 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,781 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,781 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,788 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,793 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (1/1) ... [2020-09-14 12:51:30,796 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 12:51:30,797 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 12:51:30,797 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 12:51:30,797 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 12:51:30,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (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 [2020-09-14 12:51:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-14 12:51:30,867 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 12:51:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-09-14 12:51:30,868 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-09-14 12:51:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 12:51:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 12:51:30,868 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 12:51:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 12:51:30,869 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-09-14 12:51:30,869 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-09-14 12:51:30,871 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 12:51:31,377 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 12:51:31,377 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-09-14 12:51:31,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 12:51:31 BoogieIcfgContainer [2020-09-14 12:51:31,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 12:51:31,384 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 12:51:31,384 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 12:51:31,388 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 12:51:31,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 12:51:29" (1/3) ... [2020-09-14 12:51:31,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7e7cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 12:51:31, skipping insertion in model container [2020-09-14 12:51:31,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 12:51:30" (2/3) ... [2020-09-14 12:51:31,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d7e7cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 12:51:31, skipping insertion in model container [2020-09-14 12:51:31,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 12:51:31" (3/3) ... [2020-09-14 12:51:31,392 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-09-14 12:51:31,403 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 12:51:31,404 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 12:51:31,414 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-14 12:51:31,415 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 12:51:31,448 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,448 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,449 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,449 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,449 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,449 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,450 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,450 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,450 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,450 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,451 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,451 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,451 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,452 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,452 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,452 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,452 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,452 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,453 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,453 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,453 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,454 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,454 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,454 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,454 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,455 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,455 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,455 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,455 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,456 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,456 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,456 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,456 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,456 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,457 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,457 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,457 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,457 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,462 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,462 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,462 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,463 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,463 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,463 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,468 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,468 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,468 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,468 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,469 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,469 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,469 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,471 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,471 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,472 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,472 WARN L313 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,472 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,472 WARN L313 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,475 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,475 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,475 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,476 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,476 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,476 WARN L313 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,476 WARN L313 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 12:51:31,516 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-09-14 12:51:31,538 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 12:51:31,538 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 12:51:31,538 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 12:51:31,538 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 12:51:31,539 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 12:51:31,539 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 12:51:31,539 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 12:51:31,539 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 12:51:31,557 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 100 transitions, 268 flow [2020-09-14 12:51:31,559 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 268 flow [2020-09-14 12:51:31,625 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2020-09-14 12:51:31,625 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-09-14 12:51:31,636 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 134 events. 19/134 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 336 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 91. Up to 12 conditions per place. [2020-09-14 12:51:31,642 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 268 flow [2020-09-14 12:51:31,677 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2020-09-14 12:51:31,677 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-09-14 12:51:31,679 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 134 events. 19/134 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 336 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 91. Up to 12 conditions per place. [2020-09-14 12:51:31,683 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2448 [2020-09-14 12:51:31,684 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 12:51:33,364 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-09-14 12:51:33,478 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6576 [2020-09-14 12:51:33,479 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2020-09-14 12:51:33,483 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 55 transitions, 178 flow [2020-09-14 12:51:33,786 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2020-09-14 12:51:33,789 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2020-09-14 12:51:33,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-09-14 12:51:33,798 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 12:51:33,800 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 12:51:33,800 INFO L427 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-14 12:51:33,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 12:51:33,809 INFO L82 PathProgramCache]: Analyzing trace with hash -947191722, now seen corresponding path program 1 times [2020-09-14 12:51:33,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 12:51:33,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1975044994] [2020-09-14 12:51:33,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 12:51:34,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 12:51:34,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 12:51:34,124 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1975044994] [2020-09-14 12:51:34,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 12:51:34,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 12:51:34,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1775731831] [2020-09-14 12:51:34,133 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 12:51:34,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 12:51:34,152 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 12:51:34,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 12:51:34,156 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2020-09-14 12:51:34,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 12:51:34,384 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2020-09-14 12:51:34,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 12:51:34,387 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-09-14 12:51:34,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 12:51:34,464 INFO L225 Difference]: With dead ends: 9727 [2020-09-14 12:51:34,464 INFO L226 Difference]: Without dead ends: 7325 [2020-09-14 12:51:34,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 12:51:34,590 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2020-09-14 12:51:34,796 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2020-09-14 12:51:34,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2020-09-14 12:51:34,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2020-09-14 12:51:34,826 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2020-09-14 12:51:34,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 12:51:34,826 INFO L479 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2020-09-14 12:51:34,827 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 12:51:34,827 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2020-09-14 12:51:34,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-14 12:51:34,828 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 12:51:34,829 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 12:51:34,829 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 12:51:34,829 INFO L427 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-14 12:51:34,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 12:51:34,830 INFO L82 PathProgramCache]: Analyzing trace with hash 284128253, now seen corresponding path program 1 times [2020-09-14 12:51:34,830 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 12:51:34,830 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1757066672] [2020-09-14 12:51:34,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 12:51:34,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 12:51:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 12:51:34,922 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1757066672] [2020-09-14 12:51:34,923 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 12:51:34,923 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 12:51:34,923 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1602702270] [2020-09-14 12:51:34,926 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 12:51:34,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 12:51:34,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 12:51:34,932 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-14 12:51:34,932 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2020-09-14 12:51:35,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 12:51:35,007 INFO L93 Difference]: Finished difference Result 5506 states and 16458 transitions. [2020-09-14 12:51:35,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-14 12:51:35,008 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-09-14 12:51:35,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 12:51:35,044 INFO L225 Difference]: With dead ends: 5506 [2020-09-14 12:51:35,045 INFO L226 Difference]: Without dead ends: 5395 [2020-09-14 12:51:35,046 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-14 12:51:35,075 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2020-09-14 12:51:35,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 4690. [2020-09-14 12:51:35,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4690 states. [2020-09-14 12:51:35,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 14325 transitions. [2020-09-14 12:51:35,207 INFO L78 Accepts]: Start accepts. Automaton has 4690 states and 14325 transitions. Word has length 10 [2020-09-14 12:51:35,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 12:51:35,208 INFO L479 AbstractCegarLoop]: Abstraction has 4690 states and 14325 transitions. [2020-09-14 12:51:35,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 12:51:35,208 INFO L276 IsEmpty]: Start isEmpty. Operand 4690 states and 14325 transitions. [2020-09-14 12:51:35,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-09-14 12:51:35,210 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 12:51:35,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 12:51:35,211 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 12:51:35,211 INFO L427 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-14 12:51:35,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 12:51:35,211 INFO L82 PathProgramCache]: Analyzing trace with hash 78570353, now seen corresponding path program 2 times [2020-09-14 12:51:35,212 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 12:51:35,212 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004237641] [2020-09-14 12:51:35,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 12:51:35,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 12:51:35,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 12:51:35,316 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004237641] [2020-09-14 12:51:35,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 12:51:35,318 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 12:51:35,318 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [898739935] [2020-09-14 12:51:35,319 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 12:51:35,319 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 12:51:35,319 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 12:51:35,320 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 12:51:35,320 INFO L87 Difference]: Start difference. First operand 4690 states and 14325 transitions. Second operand 3 states. [2020-09-14 12:51:35,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 12:51:35,434 INFO L93 Difference]: Finished difference Result 2214 states and 5412 transitions. [2020-09-14 12:51:35,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 12:51:35,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-09-14 12:51:35,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 12:51:35,473 INFO L225 Difference]: With dead ends: 2214 [2020-09-14 12:51:35,474 INFO L226 Difference]: Without dead ends: 2145 [2020-09-14 12:51:35,474 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 12:51:35,498 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2020-09-14 12:51:35,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2020-09-14 12:51:35,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2020-09-14 12:51:35,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 5284 transitions. [2020-09-14 12:51:35,560 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 5284 transitions. Word has length 10 [2020-09-14 12:51:35,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 12:51:35,560 INFO L479 AbstractCegarLoop]: Abstraction has 2145 states and 5284 transitions. [2020-09-14 12:51:35,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 12:51:35,561 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 5284 transitions. [2020-09-14 12:51:35,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-09-14 12:51:35,569 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 12:51:35,569 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 12:51:35,569 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 12:51:35,569 INFO L427 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-14 12:51:35,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 12:51:35,570 INFO L82 PathProgramCache]: Analyzing trace with hash 704389695, now seen corresponding path program 1 times [2020-09-14 12:51:35,570 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 12:51:35,571 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663101557] [2020-09-14 12:51:35,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 12:51:35,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 12:51:35,688 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 12:51:35,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663101557] [2020-09-14 12:51:35,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 12:51:35,689 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 12:51:35,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618359649] [2020-09-14 12:51:35,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-14 12:51:35,690 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 12:51:35,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-14 12:51:35,690 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-14 12:51:35,693 INFO L87 Difference]: Start difference. First operand 2145 states and 5284 transitions. Second operand 4 states. [2020-09-14 12:51:35,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 12:51:35,768 INFO L93 Difference]: Finished difference Result 2539 states and 6160 transitions. [2020-09-14 12:51:35,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 12:51:35,768 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-09-14 12:51:35,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 12:51:35,774 INFO L225 Difference]: With dead ends: 2539 [2020-09-14 12:51:35,774 INFO L226 Difference]: Without dead ends: 1750 [2020-09-14 12:51:35,774 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-14 12:51:35,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2020-09-14 12:51:35,806 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1376. [2020-09-14 12:51:35,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-09-14 12:51:35,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2020-09-14 12:51:35,811 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 12 [2020-09-14 12:51:35,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 12:51:35,812 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2020-09-14 12:51:35,812 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-14 12:51:35,813 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2020-09-14 12:51:35,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-14 12:51:35,814 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 12:51:35,814 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 12:51:35,815 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 12:51:35,815 INFO L427 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-09-14 12:51:35,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 12:51:35,815 INFO L82 PathProgramCache]: Analyzing trace with hash 1336794727, now seen corresponding path program 1 times [2020-09-14 12:51:35,816 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 12:51:35,816 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [325249793] [2020-09-14 12:51:35,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 12:51:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 12:51:35,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 12:51:35,880 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [325249793] [2020-09-14 12:51:35,881 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 12:51:35,881 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-14 12:51:35,881 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1955182397] [2020-09-14 12:51:35,881 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-14 12:51:35,882 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 12:51:35,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-14 12:51:35,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-14 12:51:35,882 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2020-09-14 12:51:35,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 12:51:35,909 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2020-09-14 12:51:35,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-14 12:51:35,909 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-09-14 12:51:35,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 12:51:35,910 INFO L225 Difference]: With dead ends: 530 [2020-09-14 12:51:35,910 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 12:51:35,910 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-09-14 12:51:35,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 12:51:35,911 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 12:51:35,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 12:51:35,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 12:51:35,911 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-14 12:51:35,911 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 12:51:35,912 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 12:51:35,912 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-14 12:51:35,912 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 12:51:35,912 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 12:51:35,912 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 12:51:35,917 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 12:51:35 BasicIcfg [2020-09-14 12:51:35,917 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 12:51:35,919 INFO L168 Benchmark]: Toolchain (without parser) took 5941.39 ms. Allocated memory was 141.0 MB in the beginning and 286.3 MB in the end (delta: 145.2 MB). Free memory was 101.7 MB in the beginning and 142.4 MB in the end (delta: -40.6 MB). Peak memory consumption was 104.6 MB. Max. memory is 7.1 GB. [2020-09-14 12:51:35,920 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-14 12:51:35,921 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.90 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 163.6 MB in the end (delta: -62.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. [2020-09-14 12:51:35,922 INFO L168 Benchmark]: Boogie Procedure Inliner took 59.14 ms. Allocated memory is still 205.0 MB. Free memory was 163.6 MB in the beginning and 160.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2020-09-14 12:51:35,923 INFO L168 Benchmark]: Boogie Preprocessor took 30.33 ms. Allocated memory is still 205.0 MB. Free memory was 160.8 MB in the beginning and 159.9 MB in the end (delta: 939.3 kB). Peak memory consumption was 939.3 kB. Max. memory is 7.1 GB. [2020-09-14 12:51:35,924 INFO L168 Benchmark]: RCFGBuilder took 585.63 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 126.9 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. [2020-09-14 12:51:35,925 INFO L168 Benchmark]: TraceAbstraction took 4533.41 ms. Allocated memory was 205.0 MB in the beginning and 286.3 MB in the end (delta: 81.3 MB). Free memory was 126.9 MB in the beginning and 142.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. [2020-09-14 12:51:35,929 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 141.0 MB. Free memory was 121.3 MB in the beginning and 120.9 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.90 ms. Allocated memory was 141.0 MB in the beginning and 205.0 MB in the end (delta: 64.0 MB). Free memory was 101.3 MB in the beginning and 163.6 MB in the end (delta: -62.4 MB). Peak memory consumption was 23.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 59.14 ms. Allocated memory is still 205.0 MB. Free memory was 163.6 MB in the beginning and 160.8 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 30.33 ms. Allocated memory is still 205.0 MB. Free memory was 160.8 MB in the beginning and 159.9 MB in the end (delta: 939.3 kB). Peak memory consumption was 939.3 kB. Max. memory is 7.1 GB. * RCFGBuilder took 585.63 ms. Allocated memory is still 205.0 MB. Free memory was 159.9 MB in the beginning and 126.9 MB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4533.41 ms. Allocated memory was 205.0 MB in the beginning and 286.3 MB in the end (delta: 81.3 MB). Free memory was 126.9 MB in the beginning and 142.4 MB in the end (delta: -15.5 MB). Peak memory consumption was 65.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.9s, 99 ProgramPointsBefore, 56 ProgramPointsAfterwards, 100 TransitionsBefore, 55 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 1014 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 46 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 6576 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 700]: 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 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.2s, HoareTripleCheckerStatistics: 387 SDtfs, 359 SDslu, 341 SDs, 0 SdLazy, 104 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4690occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 4028 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...