./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread/lazy01.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/lazy01.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 f12bc723e42b6228372a2e66436e5b017cc7cb69 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 02:43:11,050 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 02:43:11,052 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 02:43:11,077 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 02:43:11,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 02:43:11,079 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 02:43:11,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 02:43:11,082 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 02:43:11,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 02:43:11,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 02:43:11,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 02:43:11,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 02:43:11,087 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 02:43:11,088 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 02:43:11,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 02:43:11,090 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 02:43:11,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 02:43:11,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 02:43:11,093 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 02:43:11,095 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 02:43:11,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 02:43:11,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 02:43:11,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 02:43:11,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 02:43:11,102 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 02:43:11,102 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 02:43:11,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 02:43:11,103 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 02:43:11,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 02:43:11,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 02:43:11,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 02:43:11,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 02:43:11,106 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 02:43:11,107 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 02:43:11,108 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 02:43:11,108 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 02:43:11,109 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 02:43:11,109 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 02:43:11,109 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 02:43:11,110 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 02:43:11,111 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 02:43:11,112 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 02:43:11,140 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 02:43:11,141 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 02:43:11,142 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 02:43:11,142 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 02:43:11,142 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 02:43:11,143 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 02:43:11,143 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 02:43:11,143 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 02:43:11,143 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 02:43:11,144 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 02:43:11,144 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 02:43:11,144 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 02:43:11,144 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 02:43:11,145 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 02:43:11,145 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 02:43:11,145 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 02:43:11,145 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 02:43:11,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 02:43:11,146 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 02:43:11,146 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 02:43:11,146 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 02:43:11,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 02:43:11,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 02:43:11,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 02:43:11,147 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 02:43:11,148 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 02:43:11,148 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 02:43:11,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 02:43:11,148 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 02:43:11,148 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 -> f12bc723e42b6228372a2e66436e5b017cc7cb69 [2020-10-20 02:43:11,343 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 02:43:11,356 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 02:43:11,359 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 02:43:11,361 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 02:43:11,361 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 02:43:11,362 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread/lazy01.i [2020-10-20 02:43:11,425 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7540f624e/d593147559a549bf9b499809c4e097e8/FLAGaeb71242a [2020-10-20 02:43:12,017 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 02:43:12,018 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread/lazy01.i [2020-10-20 02:43:12,036 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7540f624e/d593147559a549bf9b499809c4e097e8/FLAGaeb71242a [2020-10-20 02:43:12,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7540f624e/d593147559a549bf9b499809c4e097e8 [2020-10-20 02:43:12,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 02:43:12,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 02:43:12,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 02:43:12,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 02:43:12,304 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 02:43:12,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:12,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5e3ef3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12, skipping insertion in model container [2020-10-20 02:43:12,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:12,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 02:43:12,392 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 02:43:12,796 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:43:12,820 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 02:43:12,909 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 02:43:12,997 INFO L208 MainTranslator]: Completed translation [2020-10-20 02:43:12,998 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12 WrapperNode [2020-10-20 02:43:12,998 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 02:43:12,999 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 02:43:13,000 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 02:43:13,000 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 02:43:13,010 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,039 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 02:43:13,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 02:43:13,060 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 02:43:13,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 02:43:13,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,072 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,078 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,081 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,083 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (1/1) ... [2020-10-20 02:43:13,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 02:43:13,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 02:43:13,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 02:43:13,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 02:43:13,088 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (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 02:43:13,176 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-20 02:43:13,177 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2020-10-20 02:43:13,178 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2020-10-20 02:43:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2020-10-20 02:43:13,179 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2020-10-20 02:43:13,179 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2020-10-20 02:43:13,180 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2020-10-20 02:43:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-20 02:43:13,180 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2020-10-20 02:43:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 02:43:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-20 02:43:13,181 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 02:43:13,182 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 02:43:13,182 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 02:43:13,184 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 02:43:13,688 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 02:43:13,689 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 02:43:13,691 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:43:13 BoogieIcfgContainer [2020-10-20 02:43:13,691 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 02:43:13,693 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 02:43:13,693 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 02:43:13,697 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 02:43:13,697 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 02:43:12" (1/3) ... [2020-10-20 02:43:13,698 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369d2700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:43:13, skipping insertion in model container [2020-10-20 02:43:13,698 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 02:43:12" (2/3) ... [2020-10-20 02:43:13,699 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@369d2700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 02:43:13, skipping insertion in model container [2020-10-20 02:43:13,699 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:43:13" (3/3) ... [2020-10-20 02:43:13,701 INFO L111 eAbstractionObserver]: Analyzing ICFG lazy01.i [2020-10-20 02:43:13,714 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-20 02:43:13,714 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 02:43:13,722 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 02:43:13,724 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-20 02:43:13,772 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,773 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,773 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,774 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,774 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,775 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,776 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,777 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,778 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,778 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,778 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,779 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,780 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,781 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,781 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,781 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,782 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,782 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,783 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,783 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,783 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,783 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,784 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,784 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,788 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,788 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,789 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,789 WARN L313 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~nondet7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,795 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,795 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,795 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,796 WARN L313 ript$VariableManager]: TermVariabe thread3Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,796 WARN L313 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~nondet8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,799 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,799 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,800 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~nondet5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,800 WARN L313 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~post6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-20 02:43:13,814 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2020-10-20 02:43:13,829 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-20 02:43:13,851 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 02:43:13,851 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 02:43:13,851 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 02:43:13,851 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 02:43:13,852 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 02:43:13,852 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 02:43:13,852 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 02:43:13,852 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 02:43:13,864 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-20 02:43:13,867 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 89 places, 87 transitions, 216 flow [2020-10-20 02:43:13,870 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 89 places, 87 transitions, 216 flow [2020-10-20 02:43:13,872 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 89 places, 87 transitions, 216 flow [2020-10-20 02:43:13,931 INFO L129 PetriNetUnfolder]: 7/95 cut-off events. [2020-10-20 02:43:13,932 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2020-10-20 02:43:13,938 INFO L80 FinitePrefix]: Finished finitePrefix Result has 117 conditions, 95 events. 7/95 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 145 event pairs, 0 based on Foata normal form. 0/92 useless extension candidates. Maximal degree in co-relation 57. Up to 6 conditions per place. [2020-10-20 02:43:13,942 INFO L117 LiptonReduction]: Number of co-enabled transitions 1376 [2020-10-20 02:43:15,352 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-10-20 02:43:16,249 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 111 [2020-10-20 02:43:16,469 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 107 [2020-10-20 02:43:16,549 INFO L132 LiptonReduction]: Checked pairs total: 5128 [2020-10-20 02:43:16,549 INFO L134 LiptonReduction]: Total number of compositions: 58 [2020-10-20 02:43:16,556 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 40 places, 37 transitions, 116 flow [2020-10-20 02:43:16,598 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 492 states. [2020-10-20 02:43:16,600 INFO L276 IsEmpty]: Start isEmpty. Operand 492 states. [2020-10-20 02:43:16,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-10-20 02:43:16,609 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:43:16,610 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:43:16,610 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:43:16,616 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:43:16,617 INFO L82 PathProgramCache]: Analyzing trace with hash -716266499, now seen corresponding path program 1 times [2020-10-20 02:43:16,627 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:43:16,628 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060305405] [2020-10-20 02:43:16,628 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:43:16,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:43:16,852 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 02:43:16,853 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060305405] [2020-10-20 02:43:16,853 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:43:16,854 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-20 02:43:16,855 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235705376] [2020-10-20 02:43:16,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:43:16,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:43:16,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:43:16,875 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:43:16,878 INFO L87 Difference]: Start difference. First operand 492 states. Second operand 3 states. [2020-10-20 02:43:16,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:43:16,941 INFO L93 Difference]: Finished difference Result 480 states and 1245 transitions. [2020-10-20 02:43:16,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:43:16,943 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-10-20 02:43:16,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:43:16,961 INFO L225 Difference]: With dead ends: 480 [2020-10-20 02:43:16,961 INFO L226 Difference]: Without dead ends: 250 [2020-10-20 02:43:16,962 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:43:16,989 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2020-10-20 02:43:17,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 250. [2020-10-20 02:43:17,036 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 250 states. [2020-10-20 02:43:17,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 250 states to 250 states and 622 transitions. [2020-10-20 02:43:17,043 INFO L78 Accepts]: Start accepts. Automaton has 250 states and 622 transitions. Word has length 8 [2020-10-20 02:43:17,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:43:17,044 INFO L481 AbstractCegarLoop]: Abstraction has 250 states and 622 transitions. [2020-10-20 02:43:17,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:43:17,044 INFO L276 IsEmpty]: Start isEmpty. Operand 250 states and 622 transitions. [2020-10-20 02:43:17,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 02:43:17,046 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:43:17,046 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:43:17,046 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 02:43:17,047 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:43:17,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:43:17,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1751899358, now seen corresponding path program 1 times [2020-10-20 02:43:17,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:43:17,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897941792] [2020-10-20 02:43:17,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:43:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:43:17,124 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 02:43:17,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1897941792] [2020-10-20 02:43:17,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:43:17,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:43:17,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1404780969] [2020-10-20 02:43:17,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-20 02:43:17,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:43:17,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-20 02:43:17,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-20 02:43:17,128 INFO L87 Difference]: Start difference. First operand 250 states and 622 transitions. Second operand 3 states. [2020-10-20 02:43:17,156 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:43:17,156 INFO L93 Difference]: Finished difference Result 142 states and 253 transitions. [2020-10-20 02:43:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-20 02:43:17,157 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-10-20 02:43:17,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:43:17,158 INFO L225 Difference]: With dead ends: 142 [2020-10-20 02:43:17,158 INFO L226 Difference]: Without dead ends: 140 [2020-10-20 02:43:17,159 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 02:43:17,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-10-20 02:43:17,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-10-20 02:43:17,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-10-20 02:43:17,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 250 transitions. [2020-10-20 02:43:17,170 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 250 transitions. Word has length 10 [2020-10-20 02:43:17,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:43:17,171 INFO L481 AbstractCegarLoop]: Abstraction has 140 states and 250 transitions. [2020-10-20 02:43:17,171 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-20 02:43:17,171 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 250 transitions. [2020-10-20 02:43:17,172 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-20 02:43:17,172 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:43:17,172 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:43:17,172 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-20 02:43:17,173 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:43:17,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:43:17,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1525698031, now seen corresponding path program 1 times [2020-10-20 02:43:17,173 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:43:17,173 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1013848387] [2020-10-20 02:43:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:43:17,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:43:17,251 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 02:43:17,252 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1013848387] [2020-10-20 02:43:17,252 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:43:17,252 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-20 02:43:17,253 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105248387] [2020-10-20 02:43:17,253 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-20 02:43:17,253 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:43:17,253 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-20 02:43:17,254 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 02:43:17,254 INFO L87 Difference]: Start difference. First operand 140 states and 250 transitions. Second operand 4 states. [2020-10-20 02:43:17,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:43:17,284 INFO L93 Difference]: Finished difference Result 135 states and 241 transitions. [2020-10-20 02:43:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-20 02:43:17,286 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-10-20 02:43:17,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:43:17,287 INFO L225 Difference]: With dead ends: 135 [2020-10-20 02:43:17,288 INFO L226 Difference]: Without dead ends: 130 [2020-10-20 02:43:17,289 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-20 02:43:17,291 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-10-20 02:43:17,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-10-20 02:43:17,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-10-20 02:43:17,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 232 transitions. [2020-10-20 02:43:17,310 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 232 transitions. Word has length 11 [2020-10-20 02:43:17,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:43:17,310 INFO L481 AbstractCegarLoop]: Abstraction has 130 states and 232 transitions. [2020-10-20 02:43:17,310 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-20 02:43:17,310 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 232 transitions. [2020-10-20 02:43:17,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-10-20 02:43:17,311 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:43:17,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:43:17,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-20 02:43:17,312 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:43:17,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:43:17,314 INFO L82 PathProgramCache]: Analyzing trace with hash 458589855, now seen corresponding path program 1 times [2020-10-20 02:43:17,314 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:43:17,314 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400419071] [2020-10-20 02:43:17,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:43:17,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 02:43:17,416 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 02:43:17,417 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400419071] [2020-10-20 02:43:17,417 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 02:43:17,417 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-20 02:43:17,417 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527674218] [2020-10-20 02:43:17,418 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-20 02:43:17,418 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 02:43:17,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-20 02:43:17,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-20 02:43:17,419 INFO L87 Difference]: Start difference. First operand 130 states and 232 transitions. Second operand 5 states. [2020-10-20 02:43:17,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 02:43:17,456 INFO L93 Difference]: Finished difference Result 125 states and 223 transitions. [2020-10-20 02:43:17,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 02:43:17,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 12 [2020-10-20 02:43:17,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 02:43:17,457 INFO L225 Difference]: With dead ends: 125 [2020-10-20 02:43:17,458 INFO L226 Difference]: Without dead ends: 120 [2020-10-20 02:43:17,458 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-20 02:43:17,459 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2020-10-20 02:43:17,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2020-10-20 02:43:17,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2020-10-20 02:43:17,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 214 transitions. [2020-10-20 02:43:17,466 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 214 transitions. Word has length 12 [2020-10-20 02:43:17,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 02:43:17,466 INFO L481 AbstractCegarLoop]: Abstraction has 120 states and 214 transitions. [2020-10-20 02:43:17,467 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-20 02:43:17,467 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 214 transitions. [2020-10-20 02:43:17,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-10-20 02:43:17,468 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 02:43:17,468 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 02:43:17,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-20 02:43:17,469 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thread3Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thread3Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 02:43:17,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 02:43:17,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1394586607, now seen corresponding path program 1 times [2020-10-20 02:43:17,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 02:43:17,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216305489] [2020-10-20 02:43:17,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 02:43:17,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:43:17,516 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:43:17,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-20 02:43:17,539 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-20 02:43:17,570 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-20 02:43:17,571 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-20 02:43:17,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-20 02:43:17,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 02:43:17 BasicIcfg [2020-10-20 02:43:17,625 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 02:43:17,626 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 02:43:17,626 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 02:43:17,627 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 02:43:17,627 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 02:43:13" (3/4) ... [2020-10-20 02:43:17,630 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-10-20 02:43:17,739 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 02:43:17,739 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 02:43:17,741 INFO L168 Benchmark]: Toolchain (without parser) took 5450.53 ms. Allocated memory was 36.2 MB in the beginning and 70.8 MB in the end (delta: 34.6 MB). Free memory was 8.4 MB in the beginning and 8.1 MB in the end (delta: 354.1 kB). Peak memory consumption was 35.0 MB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,742 INFO L168 Benchmark]: CDTParser took 0.38 ms. Allocated memory is still 36.2 MB. Free memory was 15.2 MB in the beginning and 15.2 MB in the end (delta: 49.2 kB). Peak memory consumption was 49.2 kB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 699.83 ms. Allocated memory was 36.2 MB in the beginning and 47.2 MB in the end (delta: 11.0 MB). Free memory was 7.5 MB in the beginning and 22.6 MB in the end (delta: -15.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 60.55 ms. Allocated memory is still 47.2 MB. Free memory was 22.6 MB in the beginning and 20.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,751 INFO L168 Benchmark]: Boogie Preprocessor took 26.40 ms. Allocated memory is still 47.2 MB. Free memory was 20.6 MB in the beginning and 19.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,752 INFO L168 Benchmark]: RCFGBuilder took 604.25 ms. Allocated memory was 47.2 MB in the beginning and 47.7 MB in the end (delta: 524.3 kB). Free memory was 18.8 MB in the beginning and 13.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,753 INFO L168 Benchmark]: TraceAbstraction took 3933.14 ms. Allocated memory was 47.7 MB in the beginning and 70.8 MB in the end (delta: 23.1 MB). Free memory was 12.6 MB in the beginning and 12.3 MB in the end (delta: 339.3 kB). Peak memory consumption was 23.4 MB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,753 INFO L168 Benchmark]: Witness Printer took 113.57 ms. Allocated memory is still 70.8 MB. Free memory was 12.3 MB in the beginning and 8.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 14.3 GB. [2020-10-20 02:43:17,765 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.38 ms. Allocated memory is still 36.2 MB. Free memory was 15.2 MB in the beginning and 15.2 MB in the end (delta: 49.2 kB). Peak memory consumption was 49.2 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 699.83 ms. Allocated memory was 36.2 MB in the beginning and 47.2 MB in the end (delta: 11.0 MB). Free memory was 7.5 MB in the beginning and 22.6 MB in the end (delta: -15.1 MB). Peak memory consumption was 8.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 60.55 ms. Allocated memory is still 47.2 MB. Free memory was 22.6 MB in the beginning and 20.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.40 ms. Allocated memory is still 47.2 MB. Free memory was 20.6 MB in the beginning and 19.1 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.5 MB. Max. memory is 14.3 GB. * RCFGBuilder took 604.25 ms. Allocated memory was 47.2 MB in the beginning and 47.7 MB in the end (delta: 524.3 kB). Free memory was 18.8 MB in the beginning and 13.2 MB in the end (delta: 5.6 MB). Peak memory consumption was 9.2 MB. Max. memory is 14.3 GB. * TraceAbstraction took 3933.14 ms. Allocated memory was 47.7 MB in the beginning and 70.8 MB in the end (delta: 23.1 MB). Free memory was 12.6 MB in the beginning and 12.3 MB in the end (delta: 339.3 kB). Peak memory consumption was 23.4 MB. Max. memory is 14.3 GB. * Witness Printer took 113.57 ms. Allocated memory is still 70.8 MB. Free memory was 12.3 MB in the beginning and 8.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1078 VarBasedMoverChecksPositive, 66 VarBasedMoverChecksNegative, 39 SemBasedMoverChecksPositive, 27 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 253 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 2.6s, 89 PlacesBefore, 40 PlacesAfterwards, 87 TransitionsBefore, 37 TransitionsAfterwards, 1376 CoEnabledTransitionPairs, 5 FixpointIterations, 28 TrivialSequentialCompositions, 25 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 58 TotalNumberOfCompositions, 5128 MoverChecksTotal - CounterExampleResult [Line: 12]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L694] 0 pthread_mutex_t mutex; [L695] 0 int data = 0; [L723] 0 pthread_t t1, t2, t3; [L724] FCALL, FORK 0 pthread_create(&t1, 0, thread1, 0) VAL [arg={0:0}, data=0, mutex={5:0}] [L725] FCALL, FORK 0 pthread_create(&t2, 0, thread2, 0) VAL [arg={0:0}, arg={0:0}, data=0, mutex={5:0}] [L706] 2 data+=2 VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={5:0}] [L726] FCALL, FORK 0 pthread_create(&t3, 0, thread3, 0) VAL [arg={0:0}, arg={0:0}, arg={0:0}, data=2, mutex={5:0}] [L708] 2 return 0; [L699] 1 data++ [L701] 1 return 0; [L713] COND TRUE 3 data >= 3 [L12] COND FALSE 3 !(0) [L12] 3 __assert_fail ("0", "lazy01.c", 3, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, \result={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, data=3, mutex={5:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 80 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.7s, HoareTripleCheckerStatistics: 117 SDtfs, 67 SDslu, 134 SDs, 0 SdLazy, 38 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=492occurred 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: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 56 NumberOfCodeBlocks, 56 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 37 ConstructedInterpolants, 0 QuantifiedInterpolants, 1107 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...