/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-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 23:02:54,977 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 23:02:54,979 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 23:02:54,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 23:02:54,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 23:02:54,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 23:02:54,994 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 23:02:54,996 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 23:02:54,997 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 23:02:54,998 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 23:02:54,999 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 23:02:55,000 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 23:02:55,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 23:02:55,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 23:02:55,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 23:02:55,004 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 23:02:55,005 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 23:02:55,006 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 23:02:55,007 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 23:02:55,009 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 23:02:55,011 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 23:02:55,012 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 23:02:55,013 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 23:02:55,014 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 23:02:55,016 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 23:02:55,016 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 23:02:55,017 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 23:02:55,017 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 23:02:55,018 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 23:02:55,019 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 23:02:55,019 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 23:02:55,020 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 23:02:55,021 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 23:02:55,021 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 23:02:55,022 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 23:02:55,022 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 23:02:55,023 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 23:02:55,023 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 23:02:55,024 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 23:02:55,024 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 23:02:55,025 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 23:02:55,026 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-VariableLbe-MCR.epf [2019-12-27 23:02:55,041 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 23:02:55,041 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 23:02:55,043 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 23:02:55,043 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 23:02:55,043 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 23:02:55,043 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 23:02:55,044 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 23:02:55,044 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 23:02:55,044 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 23:02:55,044 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 23:02:55,044 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 23:02:55,044 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 23:02:55,045 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 23:02:55,045 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 23:02:55,045 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 23:02:55,045 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 23:02:55,045 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 23:02:55,046 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 23:02:55,046 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 23:02:55,046 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 23:02:55,046 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 23:02:55,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 23:02:55,047 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 23:02:55,047 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 23:02:55,047 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 23:02:55,047 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 23:02:55,047 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 23:02:55,048 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 23:02:55,048 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 23:02:55,048 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 23:02:55,048 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 23:02:55,048 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 23:02:55,321 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 23:02:55,339 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 23:02:55,343 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 23:02:55,345 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 23:02:55,347 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 23:02:55,348 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2019-12-27 23:02:55,420 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943f62458/639f7cfa46544a709101dffce9602106/FLAG96546be1f [2019-12-27 23:02:55,983 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 23:02:55,984 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe035_tso.opt.i [2019-12-27 23:02:55,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943f62458/639f7cfa46544a709101dffce9602106/FLAG96546be1f [2019-12-27 23:02:56,253 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/943f62458/639f7cfa46544a709101dffce9602106 [2019-12-27 23:02:56,261 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 23:02:56,263 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 23:02:56,264 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 23:02:56,264 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 23:02:56,268 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 23:02:56,269 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:02:56" (1/1) ... [2019-12-27 23:02:56,271 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b4d587f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:56, skipping insertion in model container [2019-12-27 23:02:56,272 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 11:02:56" (1/1) ... [2019-12-27 23:02:56,280 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 23:02:56,346 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 23:02:56,866 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:02:56,879 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 23:02:56,922 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 23:02:57,003 INFO L208 MainTranslator]: Completed translation [2019-12-27 23:02:57,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57 WrapperNode [2019-12-27 23:02:57,004 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 23:02:57,005 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 23:02:57,005 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 23:02:57,006 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 23:02:57,016 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,037 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 23:02:57,060 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 23:02:57,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 23:02:57,061 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 23:02:57,070 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,073 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,081 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,084 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,087 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (1/1) ... [2019-12-27 23:02:57,090 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 23:02:57,091 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 23:02:57,091 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 23:02:57,091 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 23:02:57,092 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (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 23:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 23:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 23:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 23:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 23:02:57,149 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 23:02:57,150 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 23:02:57,150 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 23:02:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 23:02:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 23:02:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 23:02:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 23:02:57,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 23:02:57,154 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 23:02:57,157 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 23:02:57,505 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 23:02:57,506 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 23:02:57,507 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:02:57 BoogieIcfgContainer [2019-12-27 23:02:57,507 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 23:02:57,508 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 23:02:57,509 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 23:02:57,512 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 23:02:57,512 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 11:02:56" (1/3) ... [2019-12-27 23:02:57,513 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454de247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:02:57, skipping insertion in model container [2019-12-27 23:02:57,513 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 11:02:57" (2/3) ... [2019-12-27 23:02:57,514 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@454de247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 11:02:57, skipping insertion in model container [2019-12-27 23:02:57,514 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 11:02:57" (3/3) ... [2019-12-27 23:02:57,516 INFO L109 eAbstractionObserver]: Analyzing ICFG safe035_tso.opt.i [2019-12-27 23:02:57,525 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 23:02:57,525 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 23:02:57,531 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 23:02:57,532 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 23:02:57,562 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,562 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,563 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,563 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,564 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,564 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,564 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,565 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,565 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,565 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,566 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,566 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,566 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,566 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,567 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,567 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,567 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,567 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,571 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,571 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,572 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,572 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,578 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,579 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,581 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,581 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,581 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,582 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 23:02:57,602 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 23:02:57,626 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 23:02:57,626 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 23:02:57,626 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 23:02:57,627 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 23:02:57,627 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 23:02:57,627 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 23:02:57,628 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 23:02:57,629 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 23:02:57,641 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 23:02:57,643 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 23:02:57,688 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 23:02:57,689 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 23:02:57,698 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 23:02:57,701 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 23:02:57,719 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 23:02:57,719 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 23:02:57,721 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 23:02:57,723 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 23:02:57,724 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 23:02:59,216 INFO L206 etLargeBlockEncoding]: Checked pairs total: 429 [2019-12-27 23:02:59,216 INFO L214 etLargeBlockEncoding]: Total number of compositions: 46 [2019-12-27 23:02:59,219 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 23:02:59,227 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 23:02:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 23:02:59,235 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 23:02:59,235 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:02:59,236 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:02:59,236 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:02:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:02:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash 1861325362, now seen corresponding path program 1 times [2019-12-27 23:02:59,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:02:59,253 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2025332660] [2019-12-27 23:02:59,253 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:02:59,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:02:59,486 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 23:02:59,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2025332660] [2019-12-27 23:02:59,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:02:59,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 23:02:59,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1721263553] [2019-12-27 23:02:59,489 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:02:59,495 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:02:59,509 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 23:02:59,510 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:02:59,514 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:02:59,514 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:02:59,515 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:02:59,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:02:59,529 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:02:59,531 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 23:02:59,558 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:02:59,559 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 23:02:59,559 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:02:59,560 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 23:02:59,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:02:59,571 INFO L225 Difference]: With dead ends: 44 [2019-12-27 23:02:59,571 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 23:02:59,573 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 23:02:59,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 23:02:59,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 23:02:59,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 23:02:59,613 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 23:02:59,614 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 23:02:59,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:02:59,615 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 23:02:59,615 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:02:59,615 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 23:02:59,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 23:02:59,616 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:02:59,616 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:02:59,617 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:02:59,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:02:59,617 INFO L82 PathProgramCache]: Analyzing trace with hash 1727732260, now seen corresponding path program 1 times [2019-12-27 23:02:59,617 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:02:59,618 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494848986] [2019-12-27 23:02:59,618 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:02:59,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:02:59,704 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 23:02:59,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494848986] [2019-12-27 23:02:59,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:02:59,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 23:02:59,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1122490046] [2019-12-27 23:02:59,705 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:02:59,706 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:02:59,710 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 17 transitions. [2019-12-27 23:02:59,710 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:02:59,711 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:02:59,712 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:02:59,713 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:02:59,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:02:59,713 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:02:59,713 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 23:02:59,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:02:59,719 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 23:02:59,719 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:02:59,720 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 23:02:59,720 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:02:59,721 INFO L225 Difference]: With dead ends: 34 [2019-12-27 23:02:59,721 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 23:02:59,722 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 23:02:59,723 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 23:02:59,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 23:02:59,726 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 23:02:59,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 23:02:59,728 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 23:02:59,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:02:59,728 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 23:02:59,728 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:02:59,728 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 23:02:59,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 23:02:59,729 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:02:59,729 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:02:59,730 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:02:59,730 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:02:59,730 INFO L82 PathProgramCache]: Analyzing trace with hash 1866511351, now seen corresponding path program 1 times [2019-12-27 23:02:59,730 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:02:59,731 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366548781] [2019-12-27 23:02:59,731 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:02:59,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:02:59,782 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 23:02:59,782 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366548781] [2019-12-27 23:02:59,783 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:02:59,783 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 23:02:59,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [281779646] [2019-12-27 23:02:59,783 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:02:59,784 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:02:59,786 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 23:02:59,786 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:02:59,786 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:02:59,786 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 23:02:59,786 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:02:59,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 23:02:59,787 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:02:59,787 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 23:02:59,811 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:02:59,811 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 23:02:59,812 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 23:02:59,813 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 23:02:59,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:02:59,813 INFO L225 Difference]: With dead ends: 36 [2019-12-27 23:02:59,813 INFO L226 Difference]: Without dead ends: 22 [2019-12-27 23:02:59,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 23:02:59,814 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-27 23:02:59,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-27 23:02:59,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-27 23:02:59,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-27 23:02:59,819 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-27 23:02:59,820 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:02:59,820 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-27 23:02:59,820 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 23:02:59,820 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-27 23:02:59,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 23:02:59,822 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:02:59,822 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:02:59,822 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:02:59,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:02:59,822 INFO L82 PathProgramCache]: Analyzing trace with hash 2027276793, now seen corresponding path program 1 times [2019-12-27 23:02:59,823 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:02:59,823 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [334753419] [2019-12-27 23:02:59,823 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:02:59,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:02:59,980 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 23:02:59,981 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [334753419] [2019-12-27 23:02:59,981 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:02:59,981 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:02:59,981 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1011152701] [2019-12-27 23:02:59,982 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:02:59,983 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:02:59,984 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 23:02:59,984 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:02:59,985 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:02:59,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 23:02:59,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:02:59,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 23:02:59,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:02:59,986 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 5 states. [2019-12-27 23:03:00,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:00,034 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 23:03:00,034 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 23:03:00,035 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-12-27 23:03:00,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:00,035 INFO L225 Difference]: With dead ends: 25 [2019-12-27 23:03:00,035 INFO L226 Difference]: Without dead ends: 19 [2019-12-27 23:03:00,036 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 23:03:00,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2019-12-27 23:03:00,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2019-12-27 23:03:00,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2019-12-27 23:03:00,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 25 transitions. [2019-12-27 23:03:00,039 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 25 transitions. Word has length 10 [2019-12-27 23:03:00,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:00,039 INFO L462 AbstractCegarLoop]: Abstraction has 19 states and 25 transitions. [2019-12-27 23:03:00,039 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 23:03:00,040 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 25 transitions. [2019-12-27 23:03:00,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 23:03:00,040 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:00,040 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:00,040 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:00,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:00,041 INFO L82 PathProgramCache]: Analyzing trace with hash 2029948683, now seen corresponding path program 2 times [2019-12-27 23:03:00,041 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:00,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388051802] [2019-12-27 23:03:00,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:00,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:00,165 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 23:03:00,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388051802] [2019-12-27 23:03:00,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:00,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 23:03:00,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [263228811] [2019-12-27 23:03:00,168 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:00,169 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:00,171 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 23:03:00,171 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:00,171 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:03:00,172 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 23:03:00,172 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:00,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 23:03:00,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 23:03:00,172 INFO L87 Difference]: Start difference. First operand 19 states and 25 transitions. Second operand 6 states. [2019-12-27 23:03:00,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:00,246 INFO L93 Difference]: Finished difference Result 19 states and 23 transitions. [2019-12-27 23:03:00,247 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 23:03:00,247 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2019-12-27 23:03:00,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:00,247 INFO L225 Difference]: With dead ends: 19 [2019-12-27 23:03:00,248 INFO L226 Difference]: Without dead ends: 16 [2019-12-27 23:03:00,248 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 23:03:00,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-12-27 23:03:00,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-12-27 23:03:00,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-12-27 23:03:00,251 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 19 transitions. [2019-12-27 23:03:00,251 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 19 transitions. Word has length 10 [2019-12-27 23:03:00,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:00,252 INFO L462 AbstractCegarLoop]: Abstraction has 16 states and 19 transitions. [2019-12-27 23:03:00,252 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 23:03:00,252 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 19 transitions. [2019-12-27 23:03:00,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 23:03:00,253 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:00,253 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:00,253 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:00,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:00,254 INFO L82 PathProgramCache]: Analyzing trace with hash -1498585343, now seen corresponding path program 1 times [2019-12-27 23:03:00,254 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:00,254 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232366609] [2019-12-27 23:03:00,254 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:00,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:00,309 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 23:03:00,309 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232366609] [2019-12-27 23:03:00,309 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:00,310 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:03:00,310 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1616824550] [2019-12-27 23:03:00,310 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:00,313 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:00,315 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 23:03:00,316 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:00,357 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 23:03:00,357 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 23:03:00,357 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:00,357 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 23:03:00,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 23:03:00,358 INFO L87 Difference]: Start difference. First operand 16 states and 19 transitions. Second operand 5 states. [2019-12-27 23:03:00,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:00,380 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2019-12-27 23:03:00,381 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:03:00,381 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 23:03:00,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:00,381 INFO L225 Difference]: With dead ends: 18 [2019-12-27 23:03:00,382 INFO L226 Difference]: Without dead ends: 12 [2019-12-27 23:03:00,382 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 23:03:00,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-12-27 23:03:00,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-12-27 23:03:00,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-12-27 23:03:00,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 11 transitions. [2019-12-27 23:03:00,386 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 11 transitions. Word has length 11 [2019-12-27 23:03:00,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:00,386 INFO L462 AbstractCegarLoop]: Abstraction has 12 states and 11 transitions. [2019-12-27 23:03:00,386 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 23:03:00,386 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 11 transitions. [2019-12-27 23:03:00,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 23:03:00,387 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 23:03:00,387 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 23:03:00,387 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 23:03:00,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 23:03:00,388 INFO L82 PathProgramCache]: Analyzing trace with hash -1496019473, now seen corresponding path program 2 times [2019-12-27 23:03:00,388 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 23:03:00,388 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59099635] [2019-12-27 23:03:00,388 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 23:03:00,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 23:03:00,429 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 23:03:00,429 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59099635] [2019-12-27 23:03:00,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 23:03:00,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 23:03:00,430 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1655818992] [2019-12-27 23:03:00,430 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 23:03:00,432 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 23:03:00,433 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 12 states and 11 transitions. [2019-12-27 23:03:00,434 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 23:03:00,434 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 23:03:00,434 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 23:03:00,434 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 23:03:00,434 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 23:03:00,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:03:00,435 INFO L87 Difference]: Start difference. First operand 12 states and 11 transitions. Second operand 4 states. [2019-12-27 23:03:00,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 23:03:00,443 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2019-12-27 23:03:00,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 23:03:00,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 23:03:00,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 23:03:00,444 INFO L225 Difference]: With dead ends: 11 [2019-12-27 23:03:00,444 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 23:03:00,445 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2019-12-27 23:03:00,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 23:03:00,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 23:03:00,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 23:03:00,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 23:03:00,446 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 23:03:00,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 23:03:00,446 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 23:03:00,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 23:03:00,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 23:03:00,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 23:03:00,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 11:03:00 BasicIcfg [2019-12-27 23:03:00,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 23:03:00,453 INFO L168 Benchmark]: Toolchain (without parser) took 4190.33 ms. Allocated memory was 145.2 MB in the beginning and 246.9 MB in the end (delta: 101.7 MB). Free memory was 101.8 MB in the beginning and 106.5 MB in the end (delta: -4.7 MB). Peak memory consumption was 97.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:00,454 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-27 23:03:00,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 740.10 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 157.8 MB in the end (delta: -56.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:00,456 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:00,457 INFO L168 Benchmark]: Boogie Preprocessor took 29.78 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:00,458 INFO L168 Benchmark]: RCFGBuilder took 416.66 ms. Allocated memory is still 202.9 MB. Free memory was 154.4 MB in the beginning and 133.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:00,459 INFO L168 Benchmark]: TraceAbstraction took 2942.45 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 132.9 MB in the beginning and 106.5 MB in the end (delta: 26.5 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2019-12-27 23:03:00,463 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 145.2 MB. Free memory was 121.6 MB in the beginning and 121.3 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 740.10 ms. Allocated memory was 145.2 MB in the beginning and 202.9 MB in the end (delta: 57.7 MB). Free memory was 101.4 MB in the beginning and 157.8 MB in the end (delta: -56.4 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 55.60 ms. Allocated memory is still 202.9 MB. Free memory was 157.8 MB in the beginning and 155.7 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 29.78 ms. Allocated memory is still 202.9 MB. Free memory was 155.7 MB in the beginning and 154.4 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 416.66 ms. Allocated memory is still 202.9 MB. Free memory was 154.4 MB in the beginning and 133.6 MB in the end (delta: 20.8 MB). Peak memory consumption was 20.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2942.45 ms. Allocated memory was 202.9 MB in the beginning and 246.9 MB in the end (delta: 44.0 MB). Free memory was 132.9 MB in the beginning and 106.5 MB in the end (delta: 26.5 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.5s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 29 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 223 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 429 CheckedPairsTotal, 46 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 4 procedures, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 71 SDtfs, 36 SDslu, 50 SDs, 0 SdLazy, 61 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 68 NumberOfCodeBlocks, 68 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 61 ConstructedInterpolants, 0 QuantifiedInterpolants, 1586 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...