/usr/bin/java -Xmx16000000000 -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/18_read_write_lock.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 11:32:16,772 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 11:32:16,775 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 11:32:16,806 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 11:32:16,807 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 11:32:16,815 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 11:32:16,818 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 11:32:16,822 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 11:32:16,825 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 11:32:16,828 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 11:32:16,829 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 11:32:16,832 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 11:32:16,832 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 11:32:16,835 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 11:32:16,837 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 11:32:16,840 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 11:32:16,842 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 11:32:16,843 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 11:32:16,844 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 11:32:16,851 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 11:32:16,854 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 11:32:16,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 11:32:16,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 11:32:16,857 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 11:32:16,869 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-09 11:32:16,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 11:32:16,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 11:32:16,884 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 11:32:16,884 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-09 11:32:16,928 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 11:32:16,928 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 11:32:16,930 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 11:32:16,930 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 11:32:16,930 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 11:32:16,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 11:32:16,931 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 11:32:16,931 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 11:32:16,931 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 11:32:16,931 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 11:32:16,932 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 11:32:16,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 11:32:16,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 11:32:16,933 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 11:32:16,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 11:32:16,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 11:32:16,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 11:32:16,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 11:32:16,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 11:32:16,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 11:32:16,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 11:32:16,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 11:32:16,935 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 11:32:16,935 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 11:32:16,935 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 11:32:16,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-09 11:32:16,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 11:32:16,936 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-09 11:32:16,936 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-09 11:32:16,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 11:32:17,264 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 11:32:17,280 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 11:32:17,283 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 11:32:17,285 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 11:32:17,285 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 11:32:17,286 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-10-09 11:32:17,347 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65946b52/74e7bd6b7c7e44808946e67b169e60c7/FLAG1d4d51f82 [2020-10-09 11:32:17,840 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 11:32:17,841 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/18_read_write_lock.i [2020-10-09 11:32:17,866 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65946b52/74e7bd6b7c7e44808946e67b169e60c7/FLAG1d4d51f82 [2020-10-09 11:32:18,189 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d65946b52/74e7bd6b7c7e44808946e67b169e60c7 [2020-10-09 11:32:18,199 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 11:32:18,202 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 11:32:18,205 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 11:32:18,206 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 11:32:18,210 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 11:32:18,211 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:18,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@665ce88c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18, skipping insertion in model container [2020-10-09 11:32:18,215 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:18,224 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 11:32:18,268 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 11:32:18,803 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:32:18,821 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 11:32:18,876 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 11:32:18,947 INFO L208 MainTranslator]: Completed translation [2020-10-09 11:32:18,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18 WrapperNode [2020-10-09 11:32:18,948 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 11:32:18,949 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 11:32:18,949 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 11:32:18,949 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 11:32:18,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:18,975 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:18,996 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 11:32:18,997 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 11:32:18,997 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 11:32:18,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 11:32:19,003 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:19,004 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:19,006 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:19,006 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:19,011 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:19,014 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:19,015 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (1/1) ... [2020-10-09 11:32:19,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 11:32:19,019 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 11:32:19,019 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 11:32:19,019 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 11:32:19,020 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (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 [2020-10-09 11:32:19,083 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2020-10-09 11:32:19,084 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2020-10-09 11:32:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 11:32:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 11:32:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 11:32:19,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 11:32:19,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 11:32:19,086 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 11:32:19,532 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 11:32:19,532 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-09 11:32:19,534 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:32:19 BoogieIcfgContainer [2020-10-09 11:32:19,535 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 11:32:19,536 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 11:32:19,536 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 11:32:19,539 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 11:32:19,540 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 11:32:18" (1/3) ... [2020-10-09 11:32:19,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5e93e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:32:19, skipping insertion in model container [2020-10-09 11:32:19,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 11:32:18" (2/3) ... [2020-10-09 11:32:19,541 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3f5e93e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 11:32:19, skipping insertion in model container [2020-10-09 11:32:19,541 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 11:32:19" (3/3) ... [2020-10-09 11:32:19,550 INFO L111 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock.i [2020-10-09 11:32:19,562 WARN L153 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-10-09 11:32:19,562 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 11:32:19,574 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-09 11:32:19,575 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 11:32:19,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,606 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,606 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,607 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,607 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,611 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,611 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,612 WARN L313 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,612 WARN L313 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 11:32:19,628 INFO L253 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-10-09 11:32:19,647 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 11:32:19,647 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-09 11:32:19,648 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 11:32:19,648 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 11:32:19,648 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 11:32:19,648 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 11:32:19,648 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 11:32:19,648 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 11:32:19,660 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-09 11:32:19,663 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 42 places, 39 transitions, 83 flow [2020-10-09 11:32:19,665 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 42 places, 39 transitions, 83 flow [2020-10-09 11:32:19,667 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 42 places, 39 transitions, 83 flow [2020-10-09 11:32:19,697 INFO L129 PetriNetUnfolder]: 1/38 cut-off events. [2020-10-09 11:32:19,698 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 11:32:19,702 INFO L80 FinitePrefix]: Finished finitePrefix Result has 42 conditions, 38 events. 1/38 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 16 event pairs, 0 based on Foata normal form. 0/36 useless extension candidates. Maximal degree in co-relation 26. Up to 2 conditions per place. [2020-10-09 11:32:19,704 INFO L117 LiptonReduction]: Number of co-enabled transitions 240 [2020-10-09 11:32:20,692 INFO L132 LiptonReduction]: Checked pairs total: 463 [2020-10-09 11:32:20,693 INFO L134 LiptonReduction]: Total number of compositions: 35 [2020-10-09 11:32:20,700 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 14 places, 11 transitions, 27 flow [2020-10-09 11:32:20,710 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 20 states. [2020-10-09 11:32:20,712 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-09 11:32:20,719 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-10-09 11:32:20,719 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:32:20,720 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-10-09 11:32:20,720 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:32:20,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:32:20,726 INFO L82 PathProgramCache]: Analyzing trace with hash 210008405, now seen corresponding path program 1 times [2020-10-09 11:32:20,737 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:32:20,738 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1875212781] [2020-10-09 11:32:20,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:32:20,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:32:20,917 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:32:20,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1875212781] [2020-10-09 11:32:20,919 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:32:20,919 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-09 11:32:20,920 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [378186811] [2020-10-09 11:32:20,924 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:32:20,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:32:20,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:32:20,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:32:20,940 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 3 states. [2020-10-09 11:32:20,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:32:20,974 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2020-10-09 11:32:20,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:32:20,975 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-10-09 11:32:20,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:32:20,985 INFO L225 Difference]: With dead ends: 21 [2020-10-09 11:32:20,985 INFO L226 Difference]: Without dead ends: 10 [2020-10-09 11:32:20,987 INFO L673 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 [2020-10-09 11:32:21,005 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-10-09 11:32:21,017 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-10-09 11:32:21,019 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-10-09 11:32:21,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-10-09 11:32:21,021 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 5 [2020-10-09 11:32:21,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:32:21,021 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-10-09 11:32:21,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:32:21,022 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-10-09 11:32:21,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-09 11:32:21,022 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:32:21,022 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:32:21,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-09 11:32:21,023 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:32:21,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:32:21,024 INFO L82 PathProgramCache]: Analyzing trace with hash -45381780, now seen corresponding path program 1 times [2020-10-09 11:32:21,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:32:21,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363346514] [2020-10-09 11:32:21,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:32:21,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:32:21,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:32:21,090 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363346514] [2020-10-09 11:32:21,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:32:21,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:32:21,091 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [932260649] [2020-10-09 11:32:21,095 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 11:32:21,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:32:21,095 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 11:32:21,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 11:32:21,096 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 4 states. [2020-10-09 11:32:21,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:32:21,106 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-10-09 11:32:21,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-09 11:32:21,107 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2020-10-09 11:32:21,107 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:32:21,107 INFO L225 Difference]: With dead ends: 10 [2020-10-09 11:32:21,107 INFO L226 Difference]: Without dead ends: 8 [2020-10-09 11:32:21,108 INFO L673 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-09 11:32:21,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2020-10-09 11:32:21,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2020-10-09 11:32:21,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-10-09 11:32:21,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 7 transitions. [2020-10-09 11:32:21,111 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 7 transitions. Word has length 7 [2020-10-09 11:32:21,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:32:21,113 INFO L481 AbstractCegarLoop]: Abstraction has 8 states and 7 transitions. [2020-10-09 11:32:21,113 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 11:32:21,113 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 7 transitions. [2020-10-09 11:32:21,114 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-10-09 11:32:21,114 INFO L413 BasicCegarLoop]: Found error trace [2020-10-09 11:32:21,114 INFO L421 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-09 11:32:21,116 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-09 11:32:21,116 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 11:32:21,116 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 11:32:21,116 INFO L82 PathProgramCache]: Analyzing trace with hash -61757220, now seen corresponding path program 2 times [2020-10-09 11:32:21,117 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-09 11:32:21,117 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1477695062] [2020-10-09 11:32:21,117 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-09 11:32:21,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 11:32:21,217 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 11:32:21,218 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1477695062] [2020-10-09 11:32:21,218 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-09 11:32:21,218 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-09 11:32:21,218 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159645049] [2020-10-09 11:32:21,219 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-09 11:32:21,219 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-09 11:32:21,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-09 11:32:21,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-09 11:32:21,220 INFO L87 Difference]: Start difference. First operand 8 states and 7 transitions. Second operand 3 states. [2020-10-09 11:32:21,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-09 11:32:21,223 INFO L93 Difference]: Finished difference Result 4 states and 3 transitions. [2020-10-09 11:32:21,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 11:32:21,223 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-10-09 11:32:21,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-09 11:32:21,224 INFO L225 Difference]: With dead ends: 4 [2020-10-09 11:32:21,224 INFO L226 Difference]: Without dead ends: 0 [2020-10-09 11:32:21,224 INFO L673 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 [2020-10-09 11:32:21,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-09 11:32:21,225 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-09 11:32:21,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-09 11:32:21,225 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-09 11:32:21,225 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-10-09 11:32:21,225 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-09 11:32:21,226 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-09 11:32:21,226 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-09 11:32:21,226 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-09 11:32:21,226 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-09 11:32:21,226 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-09 11:32:21,230 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 11:32:21 BasicIcfg [2020-10-09 11:32:21,230 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 11:32:21,233 INFO L168 Benchmark]: Toolchain (without parser) took 3031.53 ms. Allocated memory was 251.7 MB in the beginning and 357.0 MB in the end (delta: 105.4 MB). Free memory was 206.0 MB in the beginning and 238.1 MB in the end (delta: -32.1 MB). Peak memory consumption was 73.3 MB. Max. memory is 14.2 GB. [2020-10-09 11:32:21,234 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 11:32:21,235 INFO L168 Benchmark]: CACSL2BoogieTranslator took 743.23 ms. Allocated memory was 251.7 MB in the beginning and 315.6 MB in the end (delta: 64.0 MB). Free memory was 206.0 MB in the beginning and 271.5 MB in the end (delta: -65.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-09 11:32:21,236 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.51 ms. Allocated memory is still 315.6 MB. Free memory was 271.5 MB in the beginning and 269.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 11:32:21,237 INFO L168 Benchmark]: Boogie Preprocessor took 21.61 ms. Allocated memory is still 315.6 MB. Free memory was 269.0 MB in the beginning and 266.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 11:32:21,237 INFO L168 Benchmark]: RCFGBuilder took 516.35 ms. Allocated memory is still 315.6 MB. Free memory was 266.5 MB in the beginning and 239.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. [2020-10-09 11:32:21,238 INFO L168 Benchmark]: TraceAbstraction took 1694.29 ms. Allocated memory was 315.6 MB in the beginning and 357.0 MB in the end (delta: 41.4 MB). Free memory was 237.1 MB in the beginning and 238.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 14.2 GB. [2020-10-09 11:32:21,243 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 251.7 MB. Free memory is still 228.0 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 743.23 ms. Allocated memory was 251.7 MB in the beginning and 315.6 MB in the end (delta: 64.0 MB). Free memory was 206.0 MB in the beginning and 271.5 MB in the end (delta: -65.5 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 47.51 ms. Allocated memory is still 315.6 MB. Free memory was 271.5 MB in the beginning and 269.0 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 21.61 ms. Allocated memory is still 315.6 MB. Free memory was 269.0 MB in the beginning and 266.5 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 516.35 ms. Allocated memory is still 315.6 MB. Free memory was 266.5 MB in the beginning and 239.6 MB in the end (delta: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 14.2 GB. * TraceAbstraction took 1694.29 ms. Allocated memory was 315.6 MB in the beginning and 357.0 MB in the end (delta: 41.4 MB). Free memory was 237.1 MB in the beginning and 238.1 MB in the end (delta: -1.0 MB). Peak memory consumption was 40.4 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 167 VarBasedMoverChecksPositive, 34 VarBasedMoverChecksNegative, 6 SemBasedMoverChecksPositive, 28 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 16 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 1.0s, 42 PlacesBefore, 14 PlacesAfterwards, 39 TransitionsBefore, 11 TransitionsAfterwards, 240 CoEnabledTransitionPairs, 6 FixpointIterations, 10 TrivialSequentialCompositions, 19 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 0 ChoiceCompositions, 35 TotalNumberOfCompositions, 463 MoverChecksTotal - PositiveResult [Line: 698]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 39 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.0s, HoareTripleCheckerStatistics: 15 SDtfs, 8 SDslu, 7 SDs, 0 SdLazy, 10 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 16 ConstructedInterpolants, 0 QuantifiedInterpolants, 156 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...