./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-ext/18_read_write_lock.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-ext/18_read_write_lock.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 97062490d39080c3ce02399e02bf92c06fbfefd6 ....................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 02:47:02,678 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:47:02,681 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:47:02,721 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:47:02,722 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:47:02,724 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:47:02,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:47:02,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:47:02,736 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:47:02,737 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:47:02,738 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:47:02,739 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:47:02,740 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:47:02,741 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:47:02,742 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:47:02,743 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:47:02,744 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:47:02,744 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:47:02,746 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:47:02,748 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:47:02,757 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:47:02,759 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:47:02,760 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:47:02,761 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:47:02,763 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:47:02,764 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:47:02,764 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:47:02,765 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:47:02,765 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:47:02,766 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:47:02,767 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:47:02,767 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:47:02,768 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:47:02,769 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:47:02,770 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:47:02,770 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:47:02,771 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:47:02,771 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:47:02,771 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:47:02,772 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:47:02,773 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:47:02,774 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:47:02,795 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:47:02,796 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:47:02,797 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:47:02,797 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:47:02,798 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:47:02,798 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:47:02,798 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:47:02,798 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:47:02,799 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:47:02,799 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:47:02,799 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:47:02,799 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:47:02,800 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:47:02,800 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:47:02,800 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:47:02,800 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:47:02,801 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:47:02,801 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:47:02,801 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:47:02,802 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:47:02,802 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:47:02,802 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:47:02,802 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:47:02,803 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:47:02,803 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:47:02,803 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:47:02,803 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:47:02,804 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:47:02,804 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:47:02,804 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97062490d39080c3ce02399e02bf92c06fbfefd6 [2020-10-20 02:47:03,005 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:47:03,017 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:47:03,020 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:47:03,022 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:47:03,022 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:47:03,023 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2020-10-20 02:47:03,099 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eea524ebc/2105bc3292294d67b84930de9f0ec62a/FLAG313d17918 [2020-10-20 02:47:03,692 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:47:03,693 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-ext/18_read_write_lock.i [2020-10-20 02:47:03,708 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eea524ebc/2105bc3292294d67b84930de9f0ec62a/FLAG313d17918 [2020-10-20 02:47:03,993 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eea524ebc/2105bc3292294d67b84930de9f0ec62a [2020-10-20 02:47:03,996 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:47:04,003 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:47:04,004 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:47:04,005 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:47:04,008 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:47:04,009 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:47:03" (1/1) ... [2020-10-20 02:47:04,012 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@174a7506 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04, skipping insertion in model container [2020-10-20 02:47:04,013 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:47:03" (1/1) ... [2020-10-20 02:47:04,021 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:47:04,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:47:04,487 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:47:04,500 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:47:04,538 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:47:04,620 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:47:04,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04 WrapperNode [2020-10-20 02:47:04,621 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:47:04,622 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:47:04,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:47:04,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:47:04,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,647 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,669 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:47:04,670 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:47:04,671 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:47:04,671 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:47:04,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,681 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,689 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,690 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,702 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,706 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,708 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (1/1) ... [2020-10-20 02:47:04,711 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:47:04,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:47:04,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:47:04,721 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:47:04,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (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 [2020-10-20 02:47:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-20 02:47:04,787 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-20 02:47:04,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:47:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:47:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:47:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:47:04,788 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:47:04,789 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:47:04,790 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-20 02:47:05,235 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:47:05,235 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-20 02:47:05,237 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:47:05 BoogieIcfgContainer [2020-10-20 02:47:05,238 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:47:05,239 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:47:05,239 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:47:05,243 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:47:05,244 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:47:03" (1/3) ... [2020-10-20 02:47:05,245 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28783a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:47:05, skipping insertion in model container [2020-10-20 02:47:05,245 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:47:04" (2/3) ... [2020-10-20 02:47:05,246 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28783a34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:47:05, skipping insertion in model container [2020-10-20 02:47:05,246 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:47:05" (3/3) ... [2020-10-20 02:47:05,251 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2020-10-20 02:47:05,263 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:47:05,264 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:47:05,271 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 02:47:05,273 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:47:05,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,297 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,298 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,299 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,299 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,300 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,304 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,304 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,305 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,305 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,306 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:47:05,308 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-20 02:47:05,323 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-20 02:47:05,345 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:47:05,345 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:47:05,345 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:47:05,346 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:47:05,346 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:47:05,346 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:47:05,346 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:47:05,347 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:47:05,358 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:47:05,361 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 50 places, 48 transitions, 101 flow [2020-10-20 02:47:05,364 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 50 places, 48 transitions, 101 flow [2020-10-20 02:47:05,366 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 50 places, 48 transitions, 101 flow [2020-10-20 02:47:05,418 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2020-10-20 02:47:05,419 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-20 02:47:05,423 INFO L80 FinitePrefix]: Finished finitePrefix Result has 51 conditions, 47 events. 2/47 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 27 event pairs, 0 based on Foata normal form. 0/44 useless extension candidates. Maximal degree in co-relation 31. Up to 2 conditions per place. [2020-10-20 02:47:05,425 INFO L117 LiptonReduction]: Number of co-enabled transitions 300 [2020-10-20 02:47:06,324 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-10-20 02:47:06,641 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 68 [2020-10-20 02:47:06,808 INFO L132 LiptonReduction]: Checked pairs total: 566 [2020-10-20 02:47:06,809 INFO L134 LiptonReduction]: Total number of compositions: 47 [2020-10-20 02:47:06,815 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 11 transitions, 27 flow [2020-10-20 02:47:06,824 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 20 states. [2020-10-20 02:47:06,826 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-20 02:47:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-20 02:47:06,835 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:06,836 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-20 02:47:06,837 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:06,843 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:06,843 INFO L82 PathProgramCache]: Analyzing trace with hash 240241942, now seen corresponding path program 1 times [2020-10-20 02:47:06,854 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:06,855 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [452517045] [2020-10-20 02:47:06,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:06,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:07,047 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:07,048 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [452517045] [2020-10-20 02:47:07,049 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:07,049 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:47:07,050 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894234684] [2020-10-20 02:47:07,055 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:47:07,056 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:07,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:47:07,070 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:47:07,073 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2020-10-20 02:47:07,102 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:07,103 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2020-10-20 02:47:07,103 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:47:07,105 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-20 02:47:07,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:07,115 INFO L225 Difference]: With dead ends: 21 [2020-10-20 02:47:07,115 INFO L226 Difference]: Without dead ends: 10 [2020-10-20 02:47:07,117 INFO L677 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 [2020-10-20 02:47:07,135 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-20 02:47:07,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-20 02:47:07,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-20 02:47:07,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-10-20 02:47:07,149 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 5 [2020-10-20 02:47:07,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:07,149 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-10-20 02:47:07,149 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:47:07,150 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-10-20 02:47:07,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 02:47:07,150 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:07,150 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:47:07,150 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:47:07,151 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:07,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:07,151 INFO L82 PathProgramCache]: Analyzing trace with hash -1085621578, now seen corresponding path program 1 times [2020-10-20 02:47:07,151 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:07,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953421328] [2020-10-20 02:47:07,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:07,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:07,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:07,214 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [953421328] [2020-10-20 02:47:07,214 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:07,214 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:47:07,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1691806879] [2020-10-20 02:47:07,216 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:47:07,216 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:07,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:47:07,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:47:07,217 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-10-20 02:47:07,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:07,225 INFO L93 Difference]: Finished difference Result 10 states and 10 transitions. [2020-10-20 02:47:07,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:47:07,226 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-20 02:47:07,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:07,226 INFO L225 Difference]: With dead ends: 10 [2020-10-20 02:47:07,226 INFO L226 Difference]: Without dead ends: 9 [2020-10-20 02:47:07,227 INFO L677 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 [2020-10-20 02:47:07,228 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2020-10-20 02:47:07,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2020-10-20 02:47:07,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-20 02:47:07,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2020-10-20 02:47:07,230 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2020-10-20 02:47:07,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:07,230 INFO L481 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2020-10-20 02:47:07,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:47:07,231 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2020-10-20 02:47:07,231 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-20 02:47:07,231 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:47:07,231 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:47:07,232 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:47:07,232 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:47:07,232 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:47:07,232 INFO L82 PathProgramCache]: Analyzing trace with hash -1055753698, now seen corresponding path program 2 times [2020-10-20 02:47:07,232 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:47:07,233 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1787556544] [2020-10-20 02:47:07,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:47:07,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:47:07,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 02:47:07,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1787556544] [2020-10-20 02:47:07,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:47:07,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:47:07,347 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380880897] [2020-10-20 02:47:07,347 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 02:47:07,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:47:07,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 02:47:07,348 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 02:47:07,348 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 4 states. [2020-10-20 02:47:07,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:47:07,360 INFO L93 Difference]: Finished difference Result 5 states and 4 transitions. [2020-10-20 02:47:07,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 02:47:07,361 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-20 02:47:07,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:47:07,362 INFO L225 Difference]: With dead ends: 5 [2020-10-20 02:47:07,362 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 02:47:07,363 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-20 02:47:07,363 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 02:47:07,363 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 02:47:07,363 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 02:47:07,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 02:47:07,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-10-20 02:47:07,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:47:07,364 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 02:47:07,364 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 02:47:07,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 02:47:07,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 02:47:07,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:47:07,368 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:47:07 BasicIcfg [2020-10-20 02:47:07,369 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:47:07,369 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:47:07,369 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:47:07,369 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:47:07,370 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:47:05" (3/4) ... [2020-10-20 02:47:07,375 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 02:47:07,382 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2020-10-20 02:47:07,389 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 17 nodes and edges [2020-10-20 02:47:07,390 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-10-20 02:47:07,390 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 02:47:07,391 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 02:47:07,437 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:47:07,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:47:07,439 INFO L168 Benchmark]: Toolchain (without parser) took 3440.63 ms. Allocated memory was 36.7 MB in the beginning and 63.4 MB in the end (delta: 26.7 MB). Free memory was 15.6 MB in the beginning and 16.2 MB in the end (delta: -604.0 kB). Peak memory consumption was 26.1 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,440 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,440 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.05 ms. Allocated memory was 36.7 MB in the beginning and 46.7 MB in the end (delta: 10.0 MB). Free memory was 14.7 MB in the beginning and 19.8 MB in the end (delta: -5.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,441 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 46.7 MB. Free memory was 19.5 MB in the beginning and 17.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,442 INFO L168 Benchmark]: Boogie Preprocessor took 41.04 ms. Allocated memory is still 46.7 MB. Free memory was 17.5 MB in the beginning and 16.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,442 INFO L168 Benchmark]: RCFGBuilder took 517.65 ms. Allocated memory was 46.7 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Free memory was 15.8 MB in the beginning and 21.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,443 INFO L168 Benchmark]: TraceAbstraction took 2129.80 ms. Allocated memory was 49.3 MB in the beginning and 63.4 MB in the end (delta: 14.2 MB). Free memory was 21.2 MB in the beginning and 19.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,444 INFO L168 Benchmark]: Witness Printer took 67.88 ms. Allocated memory is still 63.4 MB. Free memory was 18.9 MB in the beginning and 16.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 02:47:07,449 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 34.1 MB. Free memory was 10.0 MB in the beginning and 10.0 MB in the end (delta: 45.7 kB). Peak memory consumption was 45.7 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 617.05 ms. Allocated memory was 36.7 MB in the beginning and 46.7 MB in the end (delta: 10.0 MB). Free memory was 14.7 MB in the beginning and 19.8 MB in the end (delta: -5.1 MB). Peak memory consumption was 14.2 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 48.30 ms. Allocated memory is still 46.7 MB. Free memory was 19.5 MB in the beginning and 17.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 41.04 ms. Allocated memory is still 46.7 MB. Free memory was 17.5 MB in the beginning and 16.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 517.65 ms. Allocated memory was 46.7 MB in the beginning and 49.3 MB in the end (delta: 2.6 MB). Free memory was 15.8 MB in the beginning and 21.6 MB in the end (delta: -5.7 MB). Peak memory consumption was 4.9 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2129.80 ms. Allocated memory was 49.3 MB in the beginning and 63.4 MB in the end (delta: 14.2 MB). Free memory was 21.2 MB in the beginning and 19.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 14.3 GB. * Witness Printer took 67.88 ms. Allocated memory is still 63.4 MB. Free memory was 18.9 MB in the beginning and 16.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 194 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 15 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.4s, 50 PlacesBefore, 14 PlacesAfterwards, 48 TransitionsBefore, 11 TransitionsAfterwards, 300 CoEnabledTransitionPairs, 8 FixpointIterations, 14 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 7 ConcurrentYvCompositions, 1 ChoiceCompositions, 47 TotalNumberOfCompositions, 566 MoverChecksTotal - PositiveResult [Line: 16]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 47 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.4s, HoareTripleCheckerStatistics: 18 SDtfs, 6 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...