/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-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:13:10,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:13:10,063 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:13:10,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:13:10,083 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:13:10,085 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:13:10,087 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:13:10,098 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:13:10,101 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:13:10,106 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:13:10,108 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:13:10,109 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:13:10,109 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:13:10,112 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:13:10,114 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:13:10,116 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:13:10,117 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:13:10,118 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:13:10,120 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:13:10,124 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:13:10,130 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:13:10,135 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:13:10,136 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:13:10,137 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:13:10,139 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-28 04:13:10,143 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:13:10,145 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:13:10,146 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:13:10,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:13:10,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:13:10,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:13:10,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:13:10,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:13:10,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:13:10,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:13:10,152 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:13:10,153 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-NoLbe-MCR.epf [2019-12-28 04:13:10,190 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:13:10,190 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:13:10,195 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:13:10,195 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:13:10,195 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:13:10,195 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:13:10,196 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:13:10,196 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:13:10,196 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:13:10,196 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:13:10,196 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:13:10,197 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:13:10,197 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:13:10,197 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:13:10,197 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:13:10,197 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:13:10,197 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:13:10,198 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:13:10,198 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:13:10,198 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:13:10,198 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:13:10,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:13:10,199 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:13:10,200 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:13:10,200 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:13:10,200 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:13:10,200 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:13:10,200 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:13:10,201 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:13:10,201 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:13:10,201 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:13:10,201 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:13:10,499 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:13:10,516 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:13:10,520 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:13:10,521 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:13:10,522 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:13:10,522 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2019-12-28 04:13:10,589 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9565cae8/4a6468dd4d5e4f8390cdfa4364054de4/FLAG7ec203c96 [2019-12-28 04:13:11,154 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:13:11,154 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe002_tso.oepc.i [2019-12-28 04:13:11,168 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9565cae8/4a6468dd4d5e4f8390cdfa4364054de4/FLAG7ec203c96 [2019-12-28 04:13:11,423 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d9565cae8/4a6468dd4d5e4f8390cdfa4364054de4 [2019-12-28 04:13:11,434 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:13:11,436 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:13:11,439 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:13:11,439 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:13:11,442 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:13:11,443 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:13:11" (1/1) ... [2019-12-28 04:13:11,446 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10660ca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:11, skipping insertion in model container [2019-12-28 04:13:11,446 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:13:11" (1/1) ... [2019-12-28 04:13:11,454 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:13:11,510 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:13:12,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:13:12,074 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:13:12,119 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:13:12,205 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:13:12,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12 WrapperNode [2019-12-28 04:13:12,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:13:12,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:13:12,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:13:12,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:13:12,218 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,259 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:13:12,259 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:13:12,260 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:13:12,260 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:13:12,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,270 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,271 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,277 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,280 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... [2019-12-28 04:13:12,286 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:13:12,290 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:13:12,290 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:13:12,290 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:13:12,291 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:13:12,349 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:13:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:13:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:13:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:13:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:13:12,350 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:13:12,350 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:13:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:13:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:13:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:13:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:13:12,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:13:12,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:13:12,353 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:13:12,762 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:13:12,762 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:13:12,763 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:13:12 BoogieIcfgContainer [2019-12-28 04:13:12,764 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:13:12,765 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:13:12,765 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:13:12,768 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:13:12,769 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:13:11" (1/3) ... [2019-12-28 04:13:12,769 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15db2397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:13:12, skipping insertion in model container [2019-12-28 04:13:12,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:13:12" (2/3) ... [2019-12-28 04:13:12,770 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@15db2397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:13:12, skipping insertion in model container [2019-12-28 04:13:12,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:13:12" (3/3) ... [2019-12-28 04:13:12,772 INFO L109 eAbstractionObserver]: Analyzing ICFG safe002_tso.oepc.i [2019-12-28 04:13:12,781 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:13:12,782 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:13:12,789 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:13:12,791 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:13:12,819 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,819 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,820 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,820 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,821 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,821 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,822 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,822 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,822 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,823 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,823 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,823 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,824 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,824 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,824 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,824 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,825 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,825 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,829 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,829 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,830 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,830 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,835 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,836 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,837 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,837 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,840 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,841 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,841 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,841 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:13:12,859 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:13:12,880 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:13:12,881 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:13:12,881 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:13:12,881 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:13:12,881 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:13:12,881 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:13:12,882 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:13:12,882 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:13:12,894 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 04:13:12,973 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 04:13:12,975 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 04:13:12,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:13:12,991 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:13:12,993 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:13:12,993 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:13:12,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:13:12,999 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-28 04:13:13,011 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:13:13,012 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [961563830] [2019-12-28 04:13:13,012 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:13:13,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:13:13,412 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:13:13,413 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [961563830] [2019-12-28 04:13:13,414 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:13:13,414 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:13:13,415 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1586629406] [2019-12-28 04:13:13,416 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:13:13,426 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:13:13,449 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 04:13:13,450 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:13:13,455 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:13:13,455 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:13:13,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:13:13,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:13:13,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:13:13,474 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 04:13:13,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:13:13,606 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 04:13:13,606 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:13:13,608 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 04:13:13,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:13:13,632 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 04:13:13,633 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 04:13:13,634 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:13:13,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 04:13:13,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 04:13:13,761 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 04:13:13,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 04:13:13,767 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 04:13:13,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:13:13,769 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 04:13:13,770 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:13:13,770 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 04:13:13,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:13:13,777 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:13:13,777 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:13:13,777 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:13:13,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:13:13,778 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-28 04:13:13,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:13:13,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844672848] [2019-12-28 04:13:13,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:13:13,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:13:13,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:13:13,974 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844672848] [2019-12-28 04:13:13,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:13:13,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:13:13,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1778047203] [2019-12-28 04:13:13,975 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:13:13,980 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:13:13,987 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 04:13:13,988 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:13:13,989 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:13:13,998 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:13:14,000 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:13:14,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:13:14,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:13:14,001 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 04:13:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:13:14,090 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 04:13:14,091 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:13:14,091 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 04:13:14,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:13:14,096 INFO L225 Difference]: With dead ends: 601 [2019-12-28 04:13:14,096 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 04:13:14,097 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:13:14,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 04:13:14,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 04:13:14,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 04:13:14,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 04:13:14,126 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 04:13:14,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:13:14,127 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 04:13:14,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:13:14,127 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 04:13:14,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 04:13:14,129 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:13:14,129 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:13:14,130 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:13:14,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:13:14,130 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-28 04:13:14,131 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:13:14,131 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493809974] [2019-12-28 04:13:14,131 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:13:14,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:13:14,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:13:14,325 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493809974] [2019-12-28 04:13:14,325 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:13:14,326 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:13:14,326 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1367380498] [2019-12-28 04:13:14,326 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:13:14,330 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:13:14,336 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 04:13:14,336 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:13:14,337 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:13:14,337 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:13:14,337 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:13:14,338 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:13:14,338 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:13:14,339 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 04:13:14,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:13:14,443 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 04:13:14,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:13:14,444 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 04:13:14,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:13:14,448 INFO L225 Difference]: With dead ends: 403 [2019-12-28 04:13:14,448 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 04:13:14,448 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:13:14,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 04:13:14,462 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 04:13:14,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 04:13:14,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 04:13:14,465 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 04:13:14,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:13:14,465 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 04:13:14,465 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:13:14,466 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 04:13:14,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:13:14,471 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:13:14,472 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:13:14,472 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:13:14,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:13:14,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-28 04:13:14,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:13:14,474 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450115469] [2019-12-28 04:13:14,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:13:14,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:13:14,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:13:14,688 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450115469] [2019-12-28 04:13:14,688 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:13:14,688 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:13:14,689 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1258859372] [2019-12-28 04:13:14,689 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:13:14,693 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:13:14,700 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 04:13:14,701 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:13:14,701 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:13:14,701 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:13:14,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:13:14,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:13:14,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:13:14,703 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-28 04:13:14,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:13:14,973 INFO L93 Difference]: Finished difference Result 520 states and 1395 transitions. [2019-12-28 04:13:14,974 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-28 04:13:14,974 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-28 04:13:14,974 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:13:14,977 INFO L225 Difference]: With dead ends: 520 [2019-12-28 04:13:14,977 INFO L226 Difference]: Without dead ends: 328 [2019-12-28 04:13:14,979 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-28 04:13:14,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2019-12-28 04:13:14,989 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 328. [2019-12-28 04:13:14,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 328 states. [2019-12-28 04:13:14,991 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 328 states to 328 states and 858 transitions. [2019-12-28 04:13:14,991 INFO L78 Accepts]: Start accepts. Automaton has 328 states and 858 transitions. Word has length 34 [2019-12-28 04:13:14,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:13:14,992 INFO L462 AbstractCegarLoop]: Abstraction has 328 states and 858 transitions. [2019-12-28 04:13:14,992 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:13:14,992 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states and 858 transitions. [2019-12-28 04:13:14,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:13:14,994 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:13:14,994 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:13:14,994 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:13:14,994 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:13:14,995 INFO L82 PathProgramCache]: Analyzing trace with hash 1506347884, now seen corresponding path program 2 times [2019-12-28 04:13:14,995 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:13:14,996 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1870642698] [2019-12-28 04:13:14,996 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:13:15,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:13:15,188 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:13:15,189 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1870642698] [2019-12-28 04:13:15,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:13:15,190 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:13:15,190 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1220693287] [2019-12-28 04:13:15,190 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:13:15,194 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:13:15,201 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 43 states and 50 transitions. [2019-12-28 04:13:15,204 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:13:15,307 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:13:15,308 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-28 04:13:15,308 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:13:15,308 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-28 04:13:15,310 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:13:15,311 INFO L87 Difference]: Start difference. First operand 328 states and 858 transitions. Second operand 9 states. [2019-12-28 04:13:15,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:13:15,490 INFO L93 Difference]: Finished difference Result 535 states and 1422 transitions. [2019-12-28 04:13:15,491 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-28 04:13:15,491 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2019-12-28 04:13:15,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:13:15,493 INFO L225 Difference]: With dead ends: 535 [2019-12-28 04:13:15,494 INFO L226 Difference]: Without dead ends: 313 [2019-12-28 04:13:15,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=61, Invalid=121, Unknown=0, NotChecked=0, Total=182 [2019-12-28 04:13:15,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-28 04:13:15,504 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-28 04:13:15,504 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-28 04:13:15,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-28 04:13:15,506 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-28 04:13:15,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:13:15,506 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-28 04:13:15,506 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-28 04:13:15,507 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-28 04:13:15,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:13:15,508 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:13:15,508 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:13:15,508 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:13:15,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:13:15,509 INFO L82 PathProgramCache]: Analyzing trace with hash -1476702554, now seen corresponding path program 3 times [2019-12-28 04:13:15,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:13:15,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1602435506] [2019-12-28 04:13:15,510 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:13:15,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:13:15,607 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:13:15,608 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1602435506] [2019-12-28 04:13:15,608 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:13:15,608 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:13:15,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1306508403] [2019-12-28 04:13:15,609 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:13:15,613 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:13:15,624 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 47 states and 58 transitions. [2019-12-28 04:13:15,624 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:13:15,705 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 8 times. [2019-12-28 04:13:15,706 INFO L442 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-12-28 04:13:15,706 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:13:15,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-12-28 04:13:15,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=54, Unknown=0, NotChecked=0, Total=72 [2019-12-28 04:13:15,707 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 9 states. [2019-12-28 04:13:15,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:13:15,813 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-28 04:13:15,813 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:13:15,813 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 34 [2019-12-28 04:13:15,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:13:15,814 INFO L225 Difference]: With dead ends: 259 [2019-12-28 04:13:15,814 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:13:15,814 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-12-28 04:13:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:13:15,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:13:15,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:13:15,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:13:15,815 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 04:13:15,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:13:15,816 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:13:15,816 INFO L463 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-12-28 04:13:15,816 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:13:15,816 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:13:15,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:13:15 BasicIcfg [2019-12-28 04:13:15,822 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:13:15,825 INFO L168 Benchmark]: Toolchain (without parser) took 4388.30 ms. Allocated memory was 137.4 MB in the beginning and 250.6 MB in the end (delta: 113.2 MB). Free memory was 101.1 MB in the beginning and 110.9 MB in the end (delta: -9.8 MB). Peak memory consumption was 103.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:13:15,826 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-28 04:13:15,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.21 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 156.4 MB in the end (delta: -55.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:13:15,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.46 ms. Allocated memory is still 201.3 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:13:15,828 INFO L168 Benchmark]: Boogie Preprocessor took 26.91 ms. Allocated memory is still 201.3 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:13:15,829 INFO L168 Benchmark]: RCFGBuilder took 474.14 ms. Allocated memory is still 201.3 MB. Free memory was 153.0 MB in the beginning and 132.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:13:15,830 INFO L168 Benchmark]: TraceAbstraction took 3057.21 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 132.1 MB in the beginning and 110.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:13:15,835 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 137.4 MB. Free memory was 120.5 MB in the beginning and 120.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.21 ms. Allocated memory was 137.4 MB in the beginning and 201.3 MB in the end (delta: 64.0 MB). Free memory was 100.9 MB in the beginning and 156.4 MB in the end (delta: -55.5 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.46 ms. Allocated memory is still 201.3 MB. Free memory was 156.4 MB in the beginning and 154.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.91 ms. Allocated memory is still 201.3 MB. Free memory was 154.4 MB in the beginning and 153.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 474.14 ms. Allocated memory is still 201.3 MB. Free memory was 153.0 MB in the beginning and 132.1 MB in the end (delta: 20.9 MB). Peak memory consumption was 20.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3057.21 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 132.1 MB in the beginning and 110.9 MB in the end (delta: 21.2 MB). Peak memory consumption was 70.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 2.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 299 SDtfs, 410 SDslu, 861 SDs, 0 SdLazy, 143 SolverSat, 49 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 198 NumberOfCodeBlocks, 198 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 192 ConstructedInterpolants, 0 QuantifiedInterpolants, 18438 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...