/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-1d1d2b5 [2020-10-22 01:23:15,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-22 01:23:15,288 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-22 01:23:15,330 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-22 01:23:15,331 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-22 01:23:15,342 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-22 01:23:15,343 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-22 01:23:15,346 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-22 01:23:15,349 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-22 01:23:15,351 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-22 01:23:15,352 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-22 01:23:15,355 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-22 01:23:15,355 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-22 01:23:15,359 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-22 01:23:15,360 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-22 01:23:15,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-22 01:23:15,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-22 01:23:15,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-22 01:23:15,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-22 01:23:15,368 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-22 01:23:15,370 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-22 01:23:15,371 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-22 01:23:15,372 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-22 01:23:15,372 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-22 01:23:15,375 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-22 01:23:15,378 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-22 01:23:15,379 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-22 01:23:15,379 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-22 01:23:15,380 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-22 01:23:15,381 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-22 01:23:15,381 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-22 01:23:15,382 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-22 01:23:15,382 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-22 01:23:15,382 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-22 01:23:15,383 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-22 01:23:15,384 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-22 01:23:15,385 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-SP.epf [2020-10-22 01:23:15,407 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-22 01:23:15,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-22 01:23:15,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-22 01:23:15,409 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-22 01:23:15,409 INFO L138 SettingsManager]: * Use SBE=true [2020-10-22 01:23:15,410 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-22 01:23:15,410 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-22 01:23:15,410 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-22 01:23:15,410 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-22 01:23:15,411 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-22 01:23:15,411 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-22 01:23:15,411 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-22 01:23:15,411 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-22 01:23:15,411 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-22 01:23:15,412 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-22 01:23:15,412 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-22 01:23:15,412 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-22 01:23:15,412 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-22 01:23:15,412 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-22 01:23:15,413 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-22 01:23:15,413 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-22 01:23:15,413 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:23:15,413 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-22 01:23:15,413 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2020-10-22 01:23:15,413 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-22 01:23:15,414 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-22 01:23:15,414 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-22 01:23:15,414 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2020-10-22 01:23:15,414 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2020-10-22 01:23:15,414 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-22 01:23:15,415 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2020-10-22 01:23:15,730 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-22 01:23:15,743 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-22 01:23:15,747 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-22 01:23:15,748 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-22 01:23:15,749 INFO L275 PluginConnector]: CDTParser initialized [2020-10-22 01:23:15,749 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-22 01:23:15,812 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c491c3ca9/5244f2bb602141e3a20631d3d7c7236d/FLAG29be8bbaf [2020-10-22 01:23:16,373 INFO L306 CDTParser]: Found 1 translation units. [2020-10-22 01:23:16,374 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-10-22 01:23:16,390 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c491c3ca9/5244f2bb602141e3a20631d3d7c7236d/FLAG29be8bbaf [2020-10-22 01:23:16,678 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c491c3ca9/5244f2bb602141e3a20631d3d7c7236d [2020-10-22 01:23:16,689 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-22 01:23:16,697 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-22 01:23:16,698 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-22 01:23:16,698 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-22 01:23:16,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-22 01:23:16,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:23:16" (1/1) ... [2020-10-22 01:23:16,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48865ed4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:16, skipping insertion in model container [2020-10-22 01:23:16,706 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 01:23:16" (1/1) ... [2020-10-22 01:23:16,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-22 01:23:16,756 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-22 01:23:17,247 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:23:17,263 INFO L203 MainTranslator]: Completed pre-run [2020-10-22 01:23:17,324 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-22 01:23:17,395 INFO L208 MainTranslator]: Completed translation [2020-10-22 01:23:17,396 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17 WrapperNode [2020-10-22 01:23:17,396 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-22 01:23:17,397 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-22 01:23:17,397 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-22 01:23:17,398 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-22 01:23:17,407 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-22 01:23:17,448 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-22 01:23:17,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-22 01:23:17,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-22 01:23:17,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,458 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,461 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,474 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,476 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... [2020-10-22 01:23:17,479 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-22 01:23:17,480 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-22 01:23:17,480 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-22 01:23:17,480 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-22 01:23:17,481 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-22 01:23:17,551 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-22 01:23:17,552 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-22 01:23:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-22 01:23:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-22 01:23:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-22 01:23:17,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-22 01:23:17,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-22 01:23:17,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-22 01:23:17,555 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-22 01:23:17,907 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-22 01:23:17,908 INFO L298 CfgBuilder]: Removed 20 assume(true) statements. [2020-10-22 01:23:17,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:23:17 BoogieIcfgContainer [2020-10-22 01:23:17,911 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-22 01:23:17,912 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-22 01:23:17,912 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-22 01:23:17,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-22 01:23:17,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 01:23:16" (1/3) ... [2020-10-22 01:23:17,918 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6565caac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:23:17, skipping insertion in model container [2020-10-22 01:23:17,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 01:23:17" (2/3) ... [2020-10-22 01:23:17,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6565caac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 01:23:17, skipping insertion in model container [2020-10-22 01:23:17,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 01:23:17" (3/3) ... [2020-10-22 01:23:17,922 INFO L111 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-10-22 01:23:17,936 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-22 01:23:17,936 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-22 01:23:17,944 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-22 01:23:17,946 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-22 01:23:17,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,975 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,976 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,977 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,978 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,979 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,980 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,984 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,984 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,985 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,985 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,986 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_reach_error_#t~nondet2.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-22 01:23:17,992 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-10-22 01:23:18,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-10-22 01:23:18,031 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-22 01:23:18,032 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-22 01:23:18,032 INFO L379 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-22 01:23:18,032 INFO L380 AbstractCegarLoop]: Backedges is MCR [2020-10-22 01:23:18,033 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-22 01:23:18,033 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-22 01:23:18,033 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-22 01:23:18,033 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-22 01:23:18,049 INFO L137 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2020-10-22 01:23:18,050 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 74 places, 96 transitions, 197 flow [2020-10-22 01:23:18,053 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 74 places, 96 transitions, 197 flow [2020-10-22 01:23:18,055 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 74 places, 96 transitions, 197 flow [2020-10-22 01:23:18,108 INFO L129 PetriNetUnfolder]: 26/95 cut-off events. [2020-10-22 01:23:18,108 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-22 01:23:18,116 INFO L80 FinitePrefix]: Finished finitePrefix Result has 99 conditions, 95 events. 26/95 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 155 event pairs, 0 based on Foata normal form. 0/67 useless extension candidates. Maximal degree in co-relation 80. Up to 3 conditions per place. [2020-10-22 01:23:18,121 INFO L116 LiptonReduction]: Number of co-enabled transitions 3150 [2020-10-22 01:23:19,203 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 66 [2020-10-22 01:23:19,313 INFO L131 LiptonReduction]: Checked pairs total: 5998 [2020-10-22 01:23:19,313 INFO L133 LiptonReduction]: Total number of compositions: 63 [2020-10-22 01:23:19,321 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-10-22 01:23:19,343 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-10-22 01:23:19,345 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-10-22 01:23:19,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-10-22 01:23:19,356 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:19,357 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:19,357 INFO L429 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:19,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:19,364 INFO L82 PathProgramCache]: Analyzing trace with hash 556857473, now seen corresponding path program 1 times [2020-10-22 01:23:19,386 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:19,387 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216519395] [2020-10-22 01:23:19,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:19,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:19,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:19,561 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216519395] [2020-10-22 01:23:19,563 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:19,564 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:19,564 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [918276320] [2020-10-22 01:23:19,566 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:19,569 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:19,587 INFO L252 McrAutomatonBuilder]: Finished intersection with 10 states and 9 transitions. [2020-10-22 01:23:19,587 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:19,594 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:19,595 INFO L461 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-10-22 01:23:19,596 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:19,609 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-10-22 01:23:19,609 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 01:23:19,611 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-10-22 01:23:19,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:19,629 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-10-22 01:23:19,629 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-10-22 01:23:19,631 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-10-22 01:23:19,632 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:19,647 INFO L225 Difference]: With dead ends: 198 [2020-10-22 01:23:19,647 INFO L226 Difference]: Without dead ends: 198 [2020-10-22 01:23:19,651 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-10-22 01:23:19,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-10-22 01:23:19,719 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-10-22 01:23:19,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-10-22 01:23:19,726 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-10-22 01:23:19,727 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-10-22 01:23:19,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:19,728 INFO L481 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-10-22 01:23:19,728 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-10-22 01:23:19,728 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-10-22 01:23:19,729 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 01:23:19,730 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:19,730 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:19,730 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-22 01:23:19,731 INFO L429 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:19,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:19,731 INFO L82 PathProgramCache]: Analyzing trace with hash -265870444, now seen corresponding path program 1 times [2020-10-22 01:23:19,735 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:19,736 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1855783667] [2020-10-22 01:23:19,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:19,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:19,841 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:19,841 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1855783667] [2020-10-22 01:23:19,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:19,842 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:19,842 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [420307438] [2020-10-22 01:23:19,842 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:19,843 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:19,844 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-22 01:23:19,845 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:19,845 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:19,846 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:19,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:19,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:19,848 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:19,848 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-10-22 01:23:19,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:19,887 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-10-22 01:23:19,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:19,906 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-22 01:23:19,906 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:19,910 INFO L225 Difference]: With dead ends: 362 [2020-10-22 01:23:19,910 INFO L226 Difference]: Without dead ends: 362 [2020-10-22 01:23:19,911 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:19,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-10-22 01:23:19,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-10-22 01:23:19,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-10-22 01:23:19,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-10-22 01:23:19,935 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-10-22 01:23:19,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:19,936 INFO L481 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-10-22 01:23:19,936 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:19,936 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-10-22 01:23:19,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-10-22 01:23:19,937 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:19,938 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:19,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-22 01:23:19,938 INFO L429 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:19,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:19,939 INFO L82 PathProgramCache]: Analyzing trace with hash -1897023782, now seen corresponding path program 1 times [2020-10-22 01:23:19,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:19,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075396623] [2020-10-22 01:23:19,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:19,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:19,980 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075396623] [2020-10-22 01:23:19,980 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:19,980 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-22 01:23:19,981 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1401772956] [2020-10-22 01:23:19,981 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:19,982 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:19,982 INFO L252 McrAutomatonBuilder]: Finished intersection with 12 states and 11 transitions. [2020-10-22 01:23:19,983 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:19,983 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:19,983 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:19,984 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:19,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:19,984 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:19,984 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-10-22 01:23:20,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:20,006 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-10-22 01:23:20,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:20,007 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-10-22 01:23:20,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:20,010 INFO L225 Difference]: With dead ends: 348 [2020-10-22 01:23:20,010 INFO L226 Difference]: Without dead ends: 348 [2020-10-22 01:23:20,011 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:20,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-10-22 01:23:20,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-10-22 01:23:20,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-10-22 01:23:20,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-10-22 01:23:20,027 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-10-22 01:23:20,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:20,028 INFO L481 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-10-22 01:23:20,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:20,028 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-10-22 01:23:20,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-22 01:23:20,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:20,030 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:20,031 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-22 01:23:20,031 INFO L429 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:20,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:20,031 INFO L82 PathProgramCache]: Analyzing trace with hash -293575379, now seen corresponding path program 1 times [2020-10-22 01:23:20,033 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:20,033 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [63638458] [2020-10-22 01:23:20,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:20,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:20,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:20,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [63638458] [2020-10-22 01:23:20,090 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:20,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:20,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [380253573] [2020-10-22 01:23:20,091 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:20,092 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:20,095 INFO L252 McrAutomatonBuilder]: Finished intersection with 29 states and 36 transitions. [2020-10-22 01:23:20,095 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:20,114 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 1 new interpolants: [2724#(<= 2 ~flag1~0)] [2020-10-22 01:23:20,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-22 01:23:20,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:20,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-22 01:23:20,115 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:20,116 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 4 states. [2020-10-22 01:23:20,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:20,178 INFO L93 Difference]: Finished difference Result 252 states and 619 transitions. [2020-10-22 01:23:20,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-22 01:23:20,179 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 19 [2020-10-22 01:23:20,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:20,181 INFO L225 Difference]: With dead ends: 252 [2020-10-22 01:23:20,181 INFO L226 Difference]: Without dead ends: 252 [2020-10-22 01:23:20,182 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-22 01:23:20,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2020-10-22 01:23:20,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 235. [2020-10-22 01:23:20,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-10-22 01:23:20,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 581 transitions. [2020-10-22 01:23:20,194 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 581 transitions. Word has length 19 [2020-10-22 01:23:20,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:20,195 INFO L481 AbstractCegarLoop]: Abstraction has 235 states and 581 transitions. [2020-10-22 01:23:20,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-22 01:23:20,195 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 581 transitions. [2020-10-22 01:23:20,197 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-22 01:23:20,197 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:20,198 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:20,198 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-22 01:23:20,198 INFO L429 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:20,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:20,198 INFO L82 PathProgramCache]: Analyzing trace with hash -369860675, now seen corresponding path program 2 times [2020-10-22 01:23:20,200 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:20,200 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [831299177] [2020-10-22 01:23:20,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:20,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:20,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [831299177] [2020-10-22 01:23:20,247 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:20,247 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:20,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [298292153] [2020-10-22 01:23:20,247 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:20,249 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:20,251 INFO L252 McrAutomatonBuilder]: Finished intersection with 30 states and 38 transitions. [2020-10-22 01:23:20,251 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:20,287 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:20,287 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:20,287 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:20,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:20,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:20,288 INFO L87 Difference]: Start difference. First operand 235 states and 581 transitions. Second operand 3 states. [2020-10-22 01:23:20,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:20,327 INFO L93 Difference]: Finished difference Result 224 states and 540 transitions. [2020-10-22 01:23:20,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:20,328 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-22 01:23:20,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:20,330 INFO L225 Difference]: With dead ends: 224 [2020-10-22 01:23:20,330 INFO L226 Difference]: Without dead ends: 224 [2020-10-22 01:23:20,331 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:20,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2020-10-22 01:23:20,337 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2020-10-22 01:23:20,338 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-22 01:23:20,339 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 540 transitions. [2020-10-22 01:23:20,339 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 540 transitions. Word has length 19 [2020-10-22 01:23:20,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:20,340 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 540 transitions. [2020-10-22 01:23:20,340 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:20,340 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 540 transitions. [2020-10-22 01:23:20,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-10-22 01:23:20,341 INFO L414 BasicCegarLoop]: Found error trace [2020-10-22 01:23:20,342 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-22 01:23:20,342 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-22 01:23:20,342 INFO L429 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-22 01:23:20,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-22 01:23:20,342 INFO L82 PathProgramCache]: Analyzing trace with hash -520856579, now seen corresponding path program 3 times [2020-10-22 01:23:20,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-22 01:23:20,344 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [108364920] [2020-10-22 01:23:20,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-22 01:23:20,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-22 01:23:20,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-22 01:23:20,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [108364920] [2020-10-22 01:23:20,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-22 01:23:20,373 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-22 01:23:20,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1252579039] [2020-10-22 01:23:20,374 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2020-10-22 01:23:20,375 INFO L249 McrAutomatonBuilder]: Started intersection. [2020-10-22 01:23:20,377 INFO L252 McrAutomatonBuilder]: Finished intersection with 35 states and 48 transitions. [2020-10-22 01:23:20,377 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2020-10-22 01:23:20,421 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 0 new interpolants: [] [2020-10-22 01:23:20,422 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-22 01:23:20,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-22 01:23:20,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-22 01:23:20,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:20,423 INFO L87 Difference]: Start difference. First operand 224 states and 540 transitions. Second operand 3 states. [2020-10-22 01:23:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-22 01:23:20,463 INFO L93 Difference]: Finished difference Result 179 states and 425 transitions. [2020-10-22 01:23:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-22 01:23:20,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-10-22 01:23:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-22 01:23:20,464 INFO L225 Difference]: With dead ends: 179 [2020-10-22 01:23:20,464 INFO L226 Difference]: Without dead ends: 0 [2020-10-22 01:23:20,464 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-22 01:23:20,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-22 01:23:20,465 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-22 01:23:20,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-22 01:23:20,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-22 01:23:20,465 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-10-22 01:23:20,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-22 01:23:20,466 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-22 01:23:20,466 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-22 01:23:20,466 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-22 01:23:20,466 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-22 01:23:20,466 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-22 01:23:20,470 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 01:23:20 BasicIcfg [2020-10-22 01:23:20,470 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-22 01:23:20,472 INFO L168 Benchmark]: Toolchain (without parser) took 3782.12 ms. Allocated memory was 145.8 MB in the beginning and 250.1 MB in the end (delta: 104.3 MB). Free memory was 101.4 MB in the beginning and 143.3 MB in the end (delta: -41.9 MB). Peak memory consumption was 62.5 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:20,473 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-10-22 01:23:20,474 INFO L168 Benchmark]: CACSL2BoogieTranslator took 698.80 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.6 MB in the beginning and 158.7 MB in the end (delta: -58.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:20,475 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.90 ms. Allocated memory is still 202.4 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:20,476 INFO L168 Benchmark]: Boogie Preprocessor took 31.37 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:20,477 INFO L168 Benchmark]: RCFGBuilder took 430.73 ms. Allocated memory is still 202.4 MB. Free memory was 154.5 MB in the beginning and 131.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:20,478 INFO L168 Benchmark]: TraceAbstraction took 2558.38 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 130.4 MB in the beginning and 143.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. [2020-10-22 01:23:20,482 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 145.8 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 698.80 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 100.6 MB in the beginning and 158.7 MB in the end (delta: -58.2 MB). Peak memory consumption was 19.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.90 ms. Allocated memory is still 202.4 MB. Free memory was 158.7 MB in the beginning and 156.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.37 ms. Allocated memory is still 202.4 MB. Free memory was 156.6 MB in the beginning and 155.2 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 430.73 ms. Allocated memory is still 202.4 MB. Free memory was 154.5 MB in the beginning and 131.1 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2558.38 ms. Allocated memory was 202.4 MB in the beginning and 250.1 MB in the end (delta: 47.7 MB). Free memory was 130.4 MB in the beginning and 143.3 MB in the end (delta: -12.9 MB). Peak memory consumption was 34.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1354 VarBasedMoverChecksPositive, 23 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 68 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.2s, 74 PlacesBefore, 35 PlacesAfterwards, 96 TransitionsBefore, 51 TransitionsAfterwards, 3150 CoEnabledTransitionPairs, 5 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 16 ConcurrentYvCompositions, 6 ChoiceCompositions, 63 TotalNumberOfCompositions, 5998 MoverChecksTotal - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 12]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 71 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.4s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.3s, HoareTripleCheckerStatistics: 310 SDtfs, 143 SDslu, 142 SDs, 0 SdLazy, 94 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 46 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=235occurred in iteration=4, 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, 288 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 88 NumberOfCodeBlocks, 88 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 82 ConstructedInterpolants, 0 QuantifiedInterpolants, 1600 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...