/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:50:00,738 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:50:00,740 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:50:00,759 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:50:00,759 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:50:00,760 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:50:00,762 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:50:00,764 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:50:00,766 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:50:00,767 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:50:00,768 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:50:00,769 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:50:00,769 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:50:00,770 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:50:00,771 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:50:00,772 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:50:00,773 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:50:00,774 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:50:00,776 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:50:00,778 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:50:00,779 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:50:00,780 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:50:00,782 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:50:00,782 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:50:00,785 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 03:50:00,785 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 03:50:00,785 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 03:50:00,786 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 03:50:00,787 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 03:50:00,788 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 03:50:00,788 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:50:00,789 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:50:00,789 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:50:00,790 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:50:00,791 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:50:00,791 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:50:00,792 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:50:00,792 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:50:00,792 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:50:00,793 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:50:00,794 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:50:00,795 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf [2019-12-27 03:50:00,809 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:50:00,810 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:50:00,811 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:50:00,811 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:50:00,811 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:50:00,811 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:50:00,812 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:50:00,812 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:50:00,812 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:50:00,812 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:50:00,812 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:50:00,813 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:50:00,813 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:50:00,813 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:50:00,813 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:50:00,813 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:50:00,814 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:50:00,814 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:50:00,814 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:50:00,814 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:50:00,814 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:50:00,815 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:50:00,815 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:50:00,815 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:50:00,815 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:50:00,815 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:50:00,816 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:50:00,816 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:50:00,816 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:50:01,095 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:50:01,109 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:50:01,112 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:50:01,114 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:50:01,114 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:50:01,115 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2019-12-27 03:50:01,196 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62d8671ac/67f88a5b75414be99fd324e29f838e4a/FLAGa3bcae838 [2019-12-27 03:50:01,809 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:50:01,810 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_tso.oepc.i [2019-12-27 03:50:01,835 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62d8671ac/67f88a5b75414be99fd324e29f838e4a/FLAGa3bcae838 [2019-12-27 03:50:02,096 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62d8671ac/67f88a5b75414be99fd324e29f838e4a [2019-12-27 03:50:02,106 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:50:02,108 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:50:02,109 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:50:02,109 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:50:02,113 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:50:02,114 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,117 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57c4a233 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02, skipping insertion in model container [2019-12-27 03:50:02,117 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,125 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:50:02,167 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:50:02,732 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:50:02,747 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:50:02,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:50:02,897 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:50:02,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02 WrapperNode [2019-12-27 03:50:02,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:50:02,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:50:02,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:50:02,899 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:50:02,908 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,929 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,949 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:50:02,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:50:02,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:50:02,950 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:50:02,957 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,957 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,961 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,961 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,974 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (1/1) ... [2019-12-27 03:50:02,982 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:50:02,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:50:02,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:50:02,983 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:50:02,988 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (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 [2019-12-27 03:50:03,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:50:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:50:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:50:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:50:03,050 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:50:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:50:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:50:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:50:03,051 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:50:03,051 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:50:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-27 03:50:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-27 03:50:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:50:03,052 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:50:03,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:50:03,054 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 03:50:03,485 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:50:03,485 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:50:03,487 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:50:03 BoogieIcfgContainer [2019-12-27 03:50:03,487 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:50:03,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:50:03,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:50:03,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:50:03,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:50:02" (1/3) ... [2019-12-27 03:50:03,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d71645d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:50:03, skipping insertion in model container [2019-12-27 03:50:03,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:50:02" (2/3) ... [2019-12-27 03:50:03,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d71645d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:50:03, skipping insertion in model container [2019-12-27 03:50:03,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:50:03" (3/3) ... [2019-12-27 03:50:03,496 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_tso.oepc.i [2019-12-27 03:50:03,507 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:50:03,507 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:50:03,516 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:50:03,517 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:50:03,552 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,553 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,553 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,553 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,554 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,554 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,555 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,555 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,555 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,555 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,556 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,556 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,556 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,557 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,557 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,557 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,557 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,558 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,558 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,558 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,559 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,559 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,559 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,559 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,563 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,564 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,564 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,564 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,570 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,570 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,570 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,571 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,573 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,574 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,574 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,574 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,578 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,579 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:50:03,595 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-27 03:50:03,616 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:50:03,616 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:50:03,617 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:50:03,617 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:50:03,617 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:50:03,617 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:50:03,617 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:50:03,617 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:50:03,632 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 76 places, 64 transitions [2019-12-27 03:50:03,634 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 76 places, 64 transitions [2019-12-27 03:50:03,679 INFO L132 PetriNetUnfolder]: 1/60 cut-off events. [2019-12-27 03:50:03,679 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:50:03,686 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs. 0/58 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 03:50:03,689 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 76 places, 64 transitions [2019-12-27 03:50:03,709 INFO L132 PetriNetUnfolder]: 1/60 cut-off events. [2019-12-27 03:50:03,709 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:50:03,711 INFO L76 FinitePrefix]: Finished finitePrefix Result has 73 conditions, 60 events. 1/60 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 27 event pairs. 0/58 useless extension candidates. Maximal degree in co-relation 50. Up to 2 conditions per place. [2019-12-27 03:50:03,713 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 732 [2019-12-27 03:50:03,715 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:50:05,351 WARN L192 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-27 03:50:05,419 INFO L206 etLargeBlockEncoding]: Checked pairs total: 721 [2019-12-27 03:50:05,420 INFO L214 etLargeBlockEncoding]: Total number of compositions: 48 [2019-12-27 03:50:05,424 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 27 places, 19 transitions [2019-12-27 03:50:05,443 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 94 states. [2019-12-27 03:50:05,446 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states. [2019-12-27 03:50:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:50:05,456 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:05,457 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:05,457 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:05,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:05,464 INFO L82 PathProgramCache]: Analyzing trace with hash -989464989, now seen corresponding path program 1 times [2019-12-27 03:50:05,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:05,475 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848724309] [2019-12-27 03:50:05,475 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:05,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:05,797 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:05,798 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848724309] [2019-12-27 03:50:05,800 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:05,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:50:05,802 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055757797] [2019-12-27 03:50:05,808 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:50:05,808 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:05,823 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:50:05,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:50:05,827 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 3 states. [2019-12-27 03:50:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:05,873 INFO L93 Difference]: Finished difference Result 86 states and 212 transitions. [2019-12-27 03:50:05,874 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:50:05,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:50:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:05,889 INFO L225 Difference]: With dead ends: 86 [2019-12-27 03:50:05,889 INFO L226 Difference]: Without dead ends: 70 [2019-12-27 03:50:05,890 INFO L631 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 [2019-12-27 03:50:05,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2019-12-27 03:50:05,931 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2019-12-27 03:50:05,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 70 states. [2019-12-27 03:50:05,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 164 transitions. [2019-12-27 03:50:05,936 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 164 transitions. Word has length 10 [2019-12-27 03:50:05,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:05,938 INFO L462 AbstractCegarLoop]: Abstraction has 70 states and 164 transitions. [2019-12-27 03:50:05,938 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:50:05,938 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 164 transitions. [2019-12-27 03:50:05,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:50:05,939 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:05,940 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:05,940 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:05,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:05,940 INFO L82 PathProgramCache]: Analyzing trace with hash -609272234, now seen corresponding path program 1 times [2019-12-27 03:50:05,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:05,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [598792543] [2019-12-27 03:50:05,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:06,031 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:06,031 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [598792543] [2019-12-27 03:50:06,031 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:06,032 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:50:06,032 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269174092] [2019-12-27 03:50:06,033 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:50:06,034 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:06,034 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:50:06,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:50:06,034 INFO L87 Difference]: Start difference. First operand 70 states and 164 transitions. Second operand 3 states. [2019-12-27 03:50:06,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:06,042 INFO L93 Difference]: Finished difference Result 66 states and 152 transitions. [2019-12-27 03:50:06,043 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:50:06,043 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 03:50:06,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:06,045 INFO L225 Difference]: With dead ends: 66 [2019-12-27 03:50:06,045 INFO L226 Difference]: Without dead ends: 66 [2019-12-27 03:50:06,046 INFO L631 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 [2019-12-27 03:50:06,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2019-12-27 03:50:06,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 66. [2019-12-27 03:50:06,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 66 states. [2019-12-27 03:50:06,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 152 transitions. [2019-12-27 03:50:06,055 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 152 transitions. Word has length 11 [2019-12-27 03:50:06,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:06,055 INFO L462 AbstractCegarLoop]: Abstraction has 66 states and 152 transitions. [2019-12-27 03:50:06,056 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:50:06,056 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 152 transitions. [2019-12-27 03:50:06,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 03:50:06,057 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:06,057 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:06,057 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:06,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:06,058 INFO L82 PathProgramCache]: Analyzing trace with hash -1933083520, now seen corresponding path program 1 times [2019-12-27 03:50:06,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:06,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341178053] [2019-12-27 03:50:06,059 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:06,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:06,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:06,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341178053] [2019-12-27 03:50:06,125 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:06,125 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:50:06,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1717987737] [2019-12-27 03:50:06,125 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:06,126 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:06,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:06,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:06,127 INFO L87 Difference]: Start difference. First operand 66 states and 152 transitions. Second operand 4 states. [2019-12-27 03:50:06,168 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:06,168 INFO L93 Difference]: Finished difference Result 82 states and 178 transitions. [2019-12-27 03:50:06,169 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:50:06,169 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-27 03:50:06,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:06,170 INFO L225 Difference]: With dead ends: 82 [2019-12-27 03:50:06,170 INFO L226 Difference]: Without dead ends: 52 [2019-12-27 03:50:06,170 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:50:06,171 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2019-12-27 03:50:06,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-27 03:50:06,176 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-27 03:50:06,177 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 108 transitions. [2019-12-27 03:50:06,177 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 108 transitions. Word has length 12 [2019-12-27 03:50:06,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:06,178 INFO L462 AbstractCegarLoop]: Abstraction has 52 states and 108 transitions. [2019-12-27 03:50:06,178 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:06,178 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 108 transitions. [2019-12-27 03:50:06,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-12-27 03:50:06,179 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:06,179 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:06,179 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:06,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:06,180 INFO L82 PathProgramCache]: Analyzing trace with hash -1709122238, now seen corresponding path program 2 times [2019-12-27 03:50:06,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:06,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389409433] [2019-12-27 03:50:06,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:06,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:06,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:06,264 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [389409433] [2019-12-27 03:50:06,264 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:06,264 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:50:06,264 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1228775272] [2019-12-27 03:50:06,264 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:06,265 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:06,265 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:06,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:06,266 INFO L87 Difference]: Start difference. First operand 52 states and 108 transitions. Second operand 4 states. [2019-12-27 03:50:06,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:06,294 INFO L93 Difference]: Finished difference Result 66 states and 123 transitions. [2019-12-27 03:50:06,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 03:50:06,294 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2019-12-27 03:50:06,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:06,295 INFO L225 Difference]: With dead ends: 66 [2019-12-27 03:50:06,295 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 03:50:06,295 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:50:06,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 03:50:06,298 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 03:50:06,298 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 03:50:06,299 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 57 transitions. [2019-12-27 03:50:06,299 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 57 transitions. Word has length 12 [2019-12-27 03:50:06,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:06,299 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 57 transitions. [2019-12-27 03:50:06,300 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:06,300 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 57 transitions. [2019-12-27 03:50:06,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-12-27 03:50:06,300 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:06,301 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:06,301 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:06,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:06,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1395075125, now seen corresponding path program 1 times [2019-12-27 03:50:06,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:06,302 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891848470] [2019-12-27 03:50:06,302 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:06,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:06,344 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:06,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1891848470] [2019-12-27 03:50:06,344 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:06,344 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:50:06,345 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550817465] [2019-12-27 03:50:06,345 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:06,345 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:06,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:06,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:06,347 INFO L87 Difference]: Start difference. First operand 34 states and 57 transitions. Second operand 4 states. [2019-12-27 03:50:06,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:06,392 INFO L93 Difference]: Finished difference Result 41 states and 64 transitions. [2019-12-27 03:50:06,393 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:50:06,393 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2019-12-27 03:50:06,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:06,393 INFO L225 Difference]: With dead ends: 41 [2019-12-27 03:50:06,394 INFO L226 Difference]: Without dead ends: 25 [2019-12-27 03:50:06,394 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:50:06,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2019-12-27 03:50:06,398 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2019-12-27 03:50:06,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2019-12-27 03:50:06,398 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 34 transitions. [2019-12-27 03:50:06,399 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 34 transitions. Word has length 13 [2019-12-27 03:50:06,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:06,399 INFO L462 AbstractCegarLoop]: Abstraction has 25 states and 34 transitions. [2019-12-27 03:50:06,399 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:06,399 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 34 transitions. [2019-12-27 03:50:06,400 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2019-12-27 03:50:06,400 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:50:06,400 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:50:06,400 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:50:06,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:50:06,401 INFO L82 PathProgramCache]: Analyzing trace with hash -534290396, now seen corresponding path program 1 times [2019-12-27 03:50:06,401 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:50:06,401 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253607667] [2019-12-27 03:50:06,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:50:06,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:50:06,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:50:06,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253607667] [2019-12-27 03:50:06,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:50:06,480 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:50:06,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765484465] [2019-12-27 03:50:06,481 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:50:06,481 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:50:06,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:50:06,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:50:06,482 INFO L87 Difference]: Start difference. First operand 25 states and 34 transitions. Second operand 4 states. [2019-12-27 03:50:06,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:50:06,525 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2019-12-27 03:50:06,525 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:50:06,525 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2019-12-27 03:50:06,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:50:06,526 INFO L225 Difference]: With dead ends: 24 [2019-12-27 03:50:06,526 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:50:06,526 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 03:50:06,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:50:06,527 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:50:06,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:50:06,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:50:06,527 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2019-12-27 03:50:06,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:50:06,528 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:50:06,528 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:50:06,528 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:50:06,528 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:50:06,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:50:06 BasicIcfg [2019-12-27 03:50:06,535 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:50:06,539 INFO L168 Benchmark]: Toolchain (without parser) took 4429.51 ms. Allocated memory was 144.2 MB in the beginning and 248.5 MB in the end (delta: 104.3 MB). Free memory was 100.8 MB in the beginning and 105.0 MB in the end (delta: -4.2 MB). Peak memory consumption was 100.2 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:06,540 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 03:50:06,546 INFO L168 Benchmark]: CACSL2BoogieTranslator took 788.89 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 100.6 MB in the beginning and 156.6 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:06,547 INFO L168 Benchmark]: Boogie Procedure Inliner took 51.13 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:06,548 INFO L168 Benchmark]: Boogie Preprocessor took 32.72 ms. Allocated memory is still 202.4 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:06,549 INFO L168 Benchmark]: RCFGBuilder took 504.89 ms. Allocated memory is still 202.4 MB. Free memory was 153.2 MB in the beginning and 130.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:06,549 INFO L168 Benchmark]: TraceAbstraction took 3045.91 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 130.5 MB in the beginning and 105.0 MB in the end (delta: 25.5 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. [2019-12-27 03:50:06,563 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 788.89 ms. Allocated memory was 144.2 MB in the beginning and 202.4 MB in the end (delta: 58.2 MB). Free memory was 100.6 MB in the beginning and 156.6 MB in the end (delta: -56.1 MB). Peak memory consumption was 20.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 51.13 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 154.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 32.72 ms. Allocated memory is still 202.4 MB. Free memory was 154.6 MB in the beginning and 153.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 504.89 ms. Allocated memory is still 202.4 MB. Free memory was 153.2 MB in the beginning and 130.5 MB in the end (delta: 22.7 MB). Peak memory consumption was 22.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3045.91 ms. Allocated memory was 202.4 MB in the beginning and 248.5 MB in the end (delta: 46.1 MB). Free memory was 130.5 MB in the beginning and 105.0 MB in the end (delta: 25.5 MB). Peak memory consumption was 71.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 76 ProgramPointsBefore, 27 ProgramPointsAfterwards, 64 TransitionsBefore, 19 TransitionsAfterwards, 732 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 32 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 2 ConcurrentYvCompositions, 1 ChoiceCompositions, 354 VarBasedMoverChecksPositive, 15 VarBasedMoverChecksNegative, 1 SemBasedMoverChecksPositive, 16 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 721 CheckedPairsTotal, 48 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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 5 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 93 SDtfs, 42 SDslu, 89 SDs, 0 SdLazy, 36 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=94occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 66 ConstructedInterpolants, 0 QuantifiedInterpolants, 1972 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...