/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/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-60655ea [2020-09-14 13:03:39,966 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-14 13:03:39,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-14 13:03:40,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-14 13:03:40,015 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-14 13:03:40,016 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-14 13:03:40,018 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-14 13:03:40,019 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-14 13:03:40,021 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-14 13:03:40,022 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-14 13:03:40,023 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-14 13:03:40,024 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-14 13:03:40,024 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-14 13:03:40,025 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-14 13:03:40,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-14 13:03:40,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-14 13:03:40,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-14 13:03:40,030 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-14 13:03:40,032 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-14 13:03:40,034 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-14 13:03:40,036 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-14 13:03:40,037 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-14 13:03:40,038 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-14 13:03:40,039 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-14 13:03:40,042 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-09-14 13:03:40,045 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-14 13:03:40,046 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-14 13:03:40,047 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-14 13:03:40,048 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-14 13:03:40,049 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-14 13:03:40,049 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-14 13:03:40,050 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-14 13:03:40,050 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-14 13:03:40,050 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-14 13:03:40,051 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-14 13:03:40,052 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-14 13:03:40,053 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-14 13:03:40,080 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-14 13:03:40,080 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-14 13:03:40,081 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-14 13:03:40,082 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-14 13:03:40,082 INFO L138 SettingsManager]: * Use SBE=true [2020-09-14 13:03:40,082 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-14 13:03:40,082 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-14 13:03:40,083 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-14 13:03:40,083 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-14 13:03:40,083 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-14 13:03:40,083 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-14 13:03:40,083 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-14 13:03:40,084 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-14 13:03:40,084 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-14 13:03:40,084 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-14 13:03:40,084 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-14 13:03:40,084 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-14 13:03:40,085 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-14 13:03:40,085 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-14 13:03:40,085 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-14 13:03:40,085 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-14 13:03:40,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-14 13:03:40,086 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-14 13:03:40,086 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-14 13:03:40,086 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-14 13:03:40,086 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-14 13:03:40,087 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-14 13:03:40,087 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-14 13:03:40,087 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-14 13:03:40,087 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-09-14 13:03:40,547 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-14 13:03:40,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-14 13:03:40,580 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-14 13:03:40,582 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-14 13:03:40,583 INFO L275 PluginConnector]: CDTParser initialized [2020-09-14 13:03:40,584 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-09-14 13:03:40,683 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76570c53f/15bd46c33ade4d73bbc85a5a32172fb7/FLAGf5db2e37c [2020-09-14 13:03:41,339 INFO L306 CDTParser]: Found 1 translation units. [2020-09-14 13:03:41,340 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/pthread-ext/17_szymanski.i [2020-09-14 13:03:41,358 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76570c53f/15bd46c33ade4d73bbc85a5a32172fb7/FLAGf5db2e37c [2020-09-14 13:03:41,590 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/76570c53f/15bd46c33ade4d73bbc85a5a32172fb7 [2020-09-14 13:03:41,606 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-14 13:03:41,611 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-09-14 13:03:41,613 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-14 13:03:41,613 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-14 13:03:41,618 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-14 13:03:41,619 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 01:03:41" (1/1) ... [2020-09-14 13:03:41,624 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a74da33 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:41, skipping insertion in model container [2020-09-14 13:03:41,624 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.09 01:03:41" (1/1) ... [2020-09-14 13:03:41,634 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-14 13:03:41,689 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-14 13:03:42,248 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 13:03:42,265 INFO L203 MainTranslator]: Completed pre-run [2020-09-14 13:03:42,361 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-14 13:03:42,438 INFO L208 MainTranslator]: Completed translation [2020-09-14 13:03:42,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42 WrapperNode [2020-09-14 13:03:42,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-14 13:03:42,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-09-14 13:03:42,441 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-09-14 13:03:42,441 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-09-14 13:03:42,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,473 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,502 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-09-14 13:03:42,503 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-14 13:03:42,503 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-14 13:03:42,503 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-14 13:03:42,513 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,513 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,517 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,527 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,543 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... [2020-09-14 13:03:42,547 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-14 13:03:42,547 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-14 13:03:42,547 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-14 13:03:42,547 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-14 13:03:42,549 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-14 13:03:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-09-14 13:03:42,628 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-09-14 13:03:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-14 13:03:42,628 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-14 13:03:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-14 13:03:42,629 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-14 13:03:42,629 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-14 13:03:42,632 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-09-14 13:03:43,058 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-14 13:03:43,058 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-09-14 13:03:43,064 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 01:03:43 BoogieIcfgContainer [2020-09-14 13:03:43,064 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-14 13:03:43,066 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-14 13:03:43,067 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-14 13:03:43,071 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-14 13:03:43,072 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.09 01:03:41" (1/3) ... [2020-09-14 13:03:43,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14177591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 01:03:43, skipping insertion in model container [2020-09-14 13:03:43,073 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.09 01:03:42" (2/3) ... [2020-09-14 13:03:43,073 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14177591 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.09 01:03:43, skipping insertion in model container [2020-09-14 13:03:43,074 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.09 01:03:43" (3/3) ... [2020-09-14 13:03:43,076 INFO L109 eAbstractionObserver]: Analyzing ICFG 17_szymanski.i [2020-09-14 13:03:43,090 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-09-14 13:03:43,090 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-09-14 13:03:43,102 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-09-14 13:03:43,104 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-09-14 13:03:43,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,132 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,133 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,133 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,134 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,140 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,140 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,141 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-09-14 13:03:43,172 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-09-14 13:03:43,196 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-14 13:03:43,196 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-14 13:03:43,197 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-09-14 13:03:43,197 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-14 13:03:43,197 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-14 13:03:43,197 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-14 13:03:43,197 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-14 13:03:43,197 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-14 13:03:43,218 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 82 transitions, 169 flow [2020-09-14 13:03:43,221 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-09-14 13:03:43,275 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-09-14 13:03:43,276 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 13:03:43,285 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-09-14 13:03:43,290 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 62 places, 82 transitions, 169 flow [2020-09-14 13:03:43,315 INFO L129 PetriNetUnfolder]: 24/81 cut-off events. [2020-09-14 13:03:43,316 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-09-14 13:03:43,317 INFO L80 FinitePrefix]: Finished finitePrefix Result has 85 conditions, 81 events. 24/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 134 event pairs, 0 based on Foata normal form. 0/55 useless extension candidates. Maximal degree in co-relation 70. Up to 3 conditions per place. [2020-09-14 13:03:43,321 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2400 [2020-09-14 13:03:43,322 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-09-14 13:03:44,248 INFO L206 etLargeBlockEncoding]: Checked pairs total: 4233 [2020-09-14 13:03:44,249 INFO L214 etLargeBlockEncoding]: Total number of compositions: 39 [2020-09-14 13:03:44,254 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 35 places, 51 transitions, 107 flow [2020-09-14 13:03:44,280 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 227 states. [2020-09-14 13:03:44,283 INFO L276 IsEmpty]: Start isEmpty. Operand 227 states. [2020-09-14 13:03:44,294 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-09-14 13:03:44,294 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:03:44,296 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:03:44,297 INFO L427 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:03:44,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:03:44,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1558311805, now seen corresponding path program 1 times [2020-09-14 13:03:44,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:03:44,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [349953507] [2020-09-14 13:03:44,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:03:44,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:03:44,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:03:44,549 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [349953507] [2020-09-14 13:03:44,550 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:03:44,551 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:03:44,552 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1390673653] [2020-09-14 13:03:44,578 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-09-14 13:03:44,579 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:03:44,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-09-14 13:03:44,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-09-14 13:03:44,614 INFO L87 Difference]: Start difference. First operand 227 states. Second operand 2 states. [2020-09-14 13:03:44,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:03:44,668 INFO L93 Difference]: Finished difference Result 198 states and 534 transitions. [2020-09-14 13:03:44,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-09-14 13:03:44,671 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-09-14 13:03:44,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:03:44,697 INFO L225 Difference]: With dead ends: 198 [2020-09-14 13:03:44,697 INFO L226 Difference]: Without dead ends: 198 [2020-09-14 13:03:44,699 INFO L675 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 [2020-09-14 13:03:44,722 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 198 states. [2020-09-14 13:03:44,760 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 198 to 198. [2020-09-14 13:03:44,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 198 states. [2020-09-14 13:03:44,766 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 198 states to 198 states and 534 transitions. [2020-09-14 13:03:44,768 INFO L78 Accepts]: Start accepts. Automaton has 198 states and 534 transitions. Word has length 9 [2020-09-14 13:03:44,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:03:44,769 INFO L479 AbstractCegarLoop]: Abstraction has 198 states and 534 transitions. [2020-09-14 13:03:44,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-09-14 13:03:44,769 INFO L276 IsEmpty]: Start isEmpty. Operand 198 states and 534 transitions. [2020-09-14 13:03:44,770 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-14 13:03:44,771 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:03:44,771 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:03:44,771 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-14 13:03:44,772 INFO L427 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:03:44,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:03:44,772 INFO L82 PathProgramCache]: Analyzing trace with hash 1031484476, now seen corresponding path program 1 times [2020-09-14 13:03:44,772 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:03:44,773 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [184589734] [2020-09-14 13:03:44,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:03:44,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:03:44,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:03:44,888 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [184589734] [2020-09-14 13:03:44,888 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:03:44,888 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:03:44,889 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153822939] [2020-09-14 13:03:44,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:03:44,891 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:03:44,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:03:44,892 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:44,892 INFO L87 Difference]: Start difference. First operand 198 states and 534 transitions. Second operand 3 states. [2020-09-14 13:03:44,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:03:44,936 INFO L93 Difference]: Finished difference Result 362 states and 979 transitions. [2020-09-14 13:03:44,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:03:44,937 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-14 13:03:44,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:03:44,941 INFO L225 Difference]: With dead ends: 362 [2020-09-14 13:03:44,941 INFO L226 Difference]: Without dead ends: 362 [2020-09-14 13:03:44,942 INFO L675 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 [2020-09-14 13:03:44,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 362 states. [2020-09-14 13:03:44,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 362 to 221. [2020-09-14 13:03:44,968 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 221 states. [2020-09-14 13:03:44,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 221 states to 221 states and 589 transitions. [2020-09-14 13:03:44,970 INFO L78 Accepts]: Start accepts. Automaton has 221 states and 589 transitions. Word has length 11 [2020-09-14 13:03:44,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:03:44,970 INFO L479 AbstractCegarLoop]: Abstraction has 221 states and 589 transitions. [2020-09-14 13:03:44,971 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:03:44,971 INFO L276 IsEmpty]: Start isEmpty. Operand 221 states and 589 transitions. [2020-09-14 13:03:44,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-09-14 13:03:44,972 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:03:44,973 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:03:44,973 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-14 13:03:44,973 INFO L427 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:03:44,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:03:44,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1746695160, now seen corresponding path program 1 times [2020-09-14 13:03:44,974 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:03:44,975 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1107653642] [2020-09-14 13:03:44,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:03:44,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:03:45,035 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:03:45,035 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1107653642] [2020-09-14 13:03:45,036 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:03:45,036 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-09-14 13:03:45,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1886401720] [2020-09-14 13:03:45,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:03:45,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:03:45,037 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:03:45,037 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,038 INFO L87 Difference]: Start difference. First operand 221 states and 589 transitions. Second operand 3 states. [2020-09-14 13:03:45,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:03:45,063 INFO L93 Difference]: Finished difference Result 348 states and 934 transitions. [2020-09-14 13:03:45,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:03:45,064 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-09-14 13:03:45,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:03:45,067 INFO L225 Difference]: With dead ends: 348 [2020-09-14 13:03:45,068 INFO L226 Difference]: Without dead ends: 348 [2020-09-14 13:03:45,068 INFO L675 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 [2020-09-14 13:03:45,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2020-09-14 13:03:45,086 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 218. [2020-09-14 13:03:45,086 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-09-14 13:03:45,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 560 transitions. [2020-09-14 13:03:45,088 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 560 transitions. Word has length 11 [2020-09-14 13:03:45,088 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:03:45,089 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 560 transitions. [2020-09-14 13:03:45,089 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:03:45,089 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 560 transitions. [2020-09-14 13:03:45,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-14 13:03:45,091 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:03:45,092 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:03:45,092 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-14 13:03:45,092 INFO L427 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:03:45,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:03:45,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1652537164, now seen corresponding path program 1 times [2020-09-14 13:03:45,093 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:03:45,093 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973254030] [2020-09-14 13:03:45,094 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:03:45,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:03:45,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:03:45,182 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973254030] [2020-09-14 13:03:45,183 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:03:45,183 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 13:03:45,183 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1170112897] [2020-09-14 13:03:45,184 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:03:45,184 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:03:45,184 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:03:45,185 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,185 INFO L87 Difference]: Start difference. First operand 218 states and 560 transitions. Second operand 3 states. [2020-09-14 13:03:45,241 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:03:45,242 INFO L93 Difference]: Finished difference Result 220 states and 542 transitions. [2020-09-14 13:03:45,242 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:03:45,242 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-14 13:03:45,243 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:03:45,245 INFO L225 Difference]: With dead ends: 220 [2020-09-14 13:03:45,245 INFO L226 Difference]: Without dead ends: 220 [2020-09-14 13:03:45,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,247 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 220 states. [2020-09-14 13:03:45,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 220 to 220. [2020-09-14 13:03:45,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-14 13:03:45,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 542 transitions. [2020-09-14 13:03:45,257 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 542 transitions. Word has length 19 [2020-09-14 13:03:45,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:03:45,258 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 542 transitions. [2020-09-14 13:03:45,258 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:03:45,258 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 542 transitions. [2020-09-14 13:03:45,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-14 13:03:45,260 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:03:45,261 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:03:45,261 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-14 13:03:45,261 INFO L427 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:03:45,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:03:45,262 INFO L82 PathProgramCache]: Analyzing trace with hash 952506058, now seen corresponding path program 1 times [2020-09-14 13:03:45,262 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:03:45,262 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [15426915] [2020-09-14 13:03:45,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:03:45,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:03:45,316 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:03:45,317 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [15426915] [2020-09-14 13:03:45,317 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:03:45,317 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 13:03:45,317 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [41608880] [2020-09-14 13:03:45,318 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:03:45,318 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:03:45,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:03:45,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,319 INFO L87 Difference]: Start difference. First operand 220 states and 542 transitions. Second operand 3 states. [2020-09-14 13:03:45,428 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:03:45,429 INFO L93 Difference]: Finished difference Result 240 states and 579 transitions. [2020-09-14 13:03:45,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:03:45,430 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-14 13:03:45,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:03:45,432 INFO L225 Difference]: With dead ends: 240 [2020-09-14 13:03:45,433 INFO L226 Difference]: Without dead ends: 240 [2020-09-14 13:03:45,435 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2020-09-14 13:03:45,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 230. [2020-09-14 13:03:45,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-14 13:03:45,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 557 transitions. [2020-09-14 13:03:45,451 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 557 transitions. Word has length 19 [2020-09-14 13:03:45,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:03:45,451 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 557 transitions. [2020-09-14 13:03:45,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:03:45,451 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 557 transitions. [2020-09-14 13:03:45,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-14 13:03:45,458 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:03:45,459 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:03:45,459 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-14 13:03:45,459 INFO L427 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:03:45,460 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:03:45,463 INFO L82 PathProgramCache]: Analyzing trace with hash -687819132, now seen corresponding path program 2 times [2020-09-14 13:03:45,463 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:03:45,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [191308230] [2020-09-14 13:03:45,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:03:45,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:03:45,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:03:45,553 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [191308230] [2020-09-14 13:03:45,555 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:03:45,555 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 13:03:45,555 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245394221] [2020-09-14 13:03:45,556 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:03:45,559 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:03:45,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:03:45,560 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,560 INFO L87 Difference]: Start difference. First operand 230 states and 557 transitions. Second operand 3 states. [2020-09-14 13:03:45,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:03:45,604 INFO L93 Difference]: Finished difference Result 228 states and 541 transitions. [2020-09-14 13:03:45,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:03:45,605 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-14 13:03:45,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:03:45,607 INFO L225 Difference]: With dead ends: 228 [2020-09-14 13:03:45,607 INFO L226 Difference]: Without dead ends: 228 [2020-09-14 13:03:45,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 228 states. [2020-09-14 13:03:45,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 228 to 228. [2020-09-14 13:03:45,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-14 13:03:45,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 541 transitions. [2020-09-14 13:03:45,616 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 541 transitions. Word has length 19 [2020-09-14 13:03:45,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:03:45,617 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 541 transitions. [2020-09-14 13:03:45,617 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:03:45,617 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 541 transitions. [2020-09-14 13:03:45,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-09-14 13:03:45,618 INFO L414 BasicCegarLoop]: Found error trace [2020-09-14 13:03:45,618 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-14 13:03:45,619 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-14 13:03:45,619 INFO L427 AbstractCegarLoop]: === Iteration 7 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-14 13:03:45,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-14 13:03:45,619 INFO L82 PathProgramCache]: Analyzing trace with hash -36638496, now seen corresponding path program 3 times [2020-09-14 13:03:45,620 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-09-14 13:03:45,620 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [952875707] [2020-09-14 13:03:45,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-14 13:03:45,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-14 13:03:45,659 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-14 13:03:45,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [952875707] [2020-09-14 13:03:45,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-14 13:03:45,660 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-14 13:03:45,660 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440308430] [2020-09-14 13:03:45,661 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-14 13:03:45,661 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-09-14 13:03:45,661 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-14 13:03:45,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,662 INFO L87 Difference]: Start difference. First operand 228 states and 541 transitions. Second operand 3 states. [2020-09-14 13:03:45,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-14 13:03:45,701 INFO L93 Difference]: Finished difference Result 194 states and 456 transitions. [2020-09-14 13:03:45,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-14 13:03:45,702 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2020-09-14 13:03:45,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-14 13:03:45,702 INFO L225 Difference]: With dead ends: 194 [2020-09-14 13:03:45,702 INFO L226 Difference]: Without dead ends: 0 [2020-09-14 13:03:45,703 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-14 13:03:45,703 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-14 13:03:45,703 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-14 13:03:45,704 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-14 13:03:45,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-14 13:03:45,704 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-09-14 13:03:45,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-14 13:03:45,704 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-14 13:03:45,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-14 13:03:45,705 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-14 13:03:45,705 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-14 13:03:45,705 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-14 13:03:45,710 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.09 01:03:45 BasicIcfg [2020-09-14 13:03:45,710 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-14 13:03:45,715 INFO L168 Benchmark]: Toolchain (without parser) took 4105.10 ms. Allocated memory was 139.5 MB in the beginning and 249.0 MB in the end (delta: 109.6 MB). Free memory was 101.3 MB in the beginning and 185.3 MB in the end (delta: -84.0 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-14 13:03:45,716 INFO L168 Benchmark]: CDTParser took 1.53 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. [2020-09-14 13:03:45,717 INFO L168 Benchmark]: CACSL2BoogieTranslator took 826.83 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 163.5 MB in the end (delta: -62.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2020-09-14 13:03:45,718 INFO L168 Benchmark]: Boogie Procedure Inliner took 62.01 ms. Allocated memory is still 203.4 MB. Free memory was 163.5 MB in the beginning and 161.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2020-09-14 13:03:45,718 INFO L168 Benchmark]: Boogie Preprocessor took 44.05 ms. Allocated memory is still 203.4 MB. Free memory was 161.6 MB in the beginning and 160.6 MB in the end (delta: 962.6 kB). Peak memory consumption was 962.6 kB. Max. memory is 7.1 GB. [2020-09-14 13:03:45,719 INFO L168 Benchmark]: RCFGBuilder took 517.01 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 138.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2020-09-14 13:03:45,720 INFO L168 Benchmark]: TraceAbstraction took 2644.75 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 138.1 MB in the beginning and 185.3 MB in the end (delta: -47.2 MB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-14 13:03:45,724 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.53 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.6 MB in the end (delta: 419.8 kB). Peak memory consumption was 419.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 826.83 ms. Allocated memory was 139.5 MB in the beginning and 203.4 MB in the end (delta: 64.0 MB). Free memory was 100.8 MB in the beginning and 163.5 MB in the end (delta: -62.6 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 62.01 ms. Allocated memory is still 203.4 MB. Free memory was 163.5 MB in the beginning and 161.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.05 ms. Allocated memory is still 203.4 MB. Free memory was 161.6 MB in the beginning and 160.6 MB in the end (delta: 962.6 kB). Peak memory consumption was 962.6 kB. Max. memory is 7.1 GB. * RCFGBuilder took 517.01 ms. Allocated memory is still 203.4 MB. Free memory was 159.6 MB in the beginning and 138.1 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2644.75 ms. Allocated memory was 203.4 MB in the beginning and 249.0 MB in the end (delta: 45.6 MB). Free memory was 138.1 MB in the beginning and 185.3 MB in the end (delta: -47.2 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.0s, 62 ProgramPointsBefore, 35 ProgramPointsAfterwards, 82 TransitionsBefore, 51 TransitionsAfterwards, 2400 CoEnabledTransitionPairs, 5 FixpointIterations, 9 TrivialSequentialCompositions, 18 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 12 ConcurrentYvCompositions, 4 ChoiceCompositions, 990 VarBasedMoverChecksPositive, 68 VarBasedMoverChecksNegative, 40 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 4233 CheckedPairsTotal, 39 TotalNumberOfCompositions - PositiveResult [Line: 687]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 705]: 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, 59 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2.5s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 373 SDtfs, 152 SDslu, 134 SDs, 0 SdLazy, 98 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=230occurred in iteration=5, 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, 7 MinimizatonAttempts, 281 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 107 NumberOfCodeBlocks, 107 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 100 ConstructedInterpolants, 0 QuantifiedInterpolants, 2248 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...