/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/szymanski.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:42:14,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:42:14,921 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:42:14,933 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:42:14,933 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:42:14,934 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:42:14,936 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:42:14,937 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:42:14,939 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:42:14,940 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:42:14,941 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:42:14,942 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:42:14,942 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:42:14,943 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:42:14,944 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:42:14,945 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:42:14,946 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:42:14,947 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:42:14,949 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:42:14,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:42:14,955 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:42:14,956 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:42:14,958 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:42:14,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:42:14,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:42:14,966 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:42:14,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:42:14,968 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:42:14,968 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:42:14,970 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:42:14,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:42:14,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:42:14,972 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:42:14,973 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:42:14,974 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:42:14,974 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:42:14,975 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:42:14,975 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:42:14,976 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:42:14,976 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:42:14,977 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:42:14,978 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-27 08:42:14,991 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:42:14,992 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:42:14,993 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:42:14,993 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:42:14,993 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:42:14,994 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:42:14,994 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:42:14,994 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:42:14,994 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:42:14,995 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:42:14,995 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:42:14,995 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:42:14,995 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:42:14,995 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:42:14,996 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:42:14,996 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:42:14,996 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:42:14,996 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:42:14,996 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:42:14,997 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:42:14,997 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:42:14,997 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:42:14,997 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:42:14,997 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:42:14,998 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:42:14,998 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:42:14,998 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:42:14,998 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:42:14,998 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:42:14,998 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:42:15,309 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:42:15,324 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:42:15,327 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:42:15,329 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:42:15,329 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:42:15,330 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/szymanski.i [2019-12-27 08:42:15,399 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc35e1f21/89581c113a3b440eab6b81e6fed127b4/FLAGf1ae61853 [2019-12-27 08:42:15,938 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:42:15,939 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/szymanski.i [2019-12-27 08:42:15,952 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc35e1f21/89581c113a3b440eab6b81e6fed127b4/FLAGf1ae61853 [2019-12-27 08:42:16,239 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/fc35e1f21/89581c113a3b440eab6b81e6fed127b4 [2019-12-27 08:42:16,250 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:42:16,252 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:42:16,253 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:42:16,254 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:42:16,258 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:42:16,259 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:42:16" (1/1) ... [2019-12-27 08:42:16,262 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a28a105 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:16, skipping insertion in model container [2019-12-27 08:42:16,263 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:42:16" (1/1) ... [2019-12-27 08:42:16,271 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:42:16,321 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:42:16,869 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:42:16,881 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:42:16,929 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:42:17,018 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:42:17,019 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17 WrapperNode [2019-12-27 08:42:17,020 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:42:17,020 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:42:17,021 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:42:17,021 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:42:17,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,073 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,095 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:42:17,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:42:17,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:42:17,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:42:17,106 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,107 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,117 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,118 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,137 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... [2019-12-27 08:42:17,140 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:42:17,141 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:42:17,141 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:42:17,141 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:42:17,142 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:42:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 08:42:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 08:42:17,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 08:42:17,217 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 08:42:17,217 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 08:42:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:42:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:42:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:42:17,218 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:42:17,218 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:42:17,220 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 08:42:17,606 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:42:17,606 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-27 08:42:17,608 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:42:17 BoogieIcfgContainer [2019-12-27 08:42:17,608 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:42:17,610 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:42:17,610 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:42:17,613 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:42:17,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:42:16" (1/3) ... [2019-12-27 08:42:17,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d5d1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:42:17, skipping insertion in model container [2019-12-27 08:42:17,615 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:42:17" (2/3) ... [2019-12-27 08:42:17,615 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@79d5d1c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:42:17, skipping insertion in model container [2019-12-27 08:42:17,616 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:42:17" (3/3) ... [2019-12-27 08:42:17,618 INFO L109 eAbstractionObserver]: Analyzing ICFG szymanski.i [2019-12-27 08:42:17,629 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:42:17,629 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:42:17,637 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 08:42:17,638 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:42:17,668 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,668 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,668 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,669 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,670 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,670 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,671 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,672 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,672 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,672 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,674 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,674 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,678 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,678 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,679 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,679 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,685 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,686 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,686 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,686 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:42:17,728 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 08:42:17,754 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:42:17,754 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:42:17,755 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:42:17,755 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:42:17,756 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:42:17,756 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:42:17,756 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:42:17,756 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:42:17,775 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 72 places, 87 transitions [2019-12-27 08:42:17,865 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1155 states. [2019-12-27 08:42:17,867 INFO L276 IsEmpty]: Start isEmpty. Operand 1155 states. [2019-12-27 08:42:17,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:42:17,884 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:42:17,886 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:42:17,886 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:42:17,893 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:42:17,893 INFO L82 PathProgramCache]: Analyzing trace with hash -243768386, now seen corresponding path program 1 times [2019-12-27 08:42:17,904 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:42:17,905 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354331355] [2019-12-27 08:42:17,906 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:42:18,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:42:18,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:42:18,106 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354331355] [2019-12-27 08:42:18,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:42:18,108 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:42:18,109 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484819369] [2019-12-27 08:42:18,115 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 08:42:18,116 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:42:18,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 08:42:18,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:42:18,135 INFO L87 Difference]: Start difference. First operand 1155 states. Second operand 2 states. [2019-12-27 08:42:18,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:42:18,209 INFO L93 Difference]: Finished difference Result 1155 states and 3406 transitions. [2019-12-27 08:42:18,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 08:42:18,211 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2019-12-27 08:42:18,211 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:42:18,242 INFO L225 Difference]: With dead ends: 1155 [2019-12-27 08:42:18,242 INFO L226 Difference]: Without dead ends: 1041 [2019-12-27 08:42:18,244 INFO L631 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 [2019-12-27 08:42:18,283 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1041 states. [2019-12-27 08:42:18,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1041 to 1041. [2019-12-27 08:42:18,426 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1041 states. [2019-12-27 08:42:18,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1041 states to 1041 states and 3100 transitions. [2019-12-27 08:42:18,434 INFO L78 Accepts]: Start accepts. Automaton has 1041 states and 3100 transitions. Word has length 22 [2019-12-27 08:42:18,435 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:42:18,435 INFO L462 AbstractCegarLoop]: Abstraction has 1041 states and 3100 transitions. [2019-12-27 08:42:18,435 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 08:42:18,435 INFO L276 IsEmpty]: Start isEmpty. Operand 1041 states and 3100 transitions. [2019-12-27 08:42:18,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-12-27 08:42:18,437 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:42:18,438 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:42:18,438 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:42:18,438 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:42:18,439 INFO L82 PathProgramCache]: Analyzing trace with hash 1499071740, now seen corresponding path program 1 times [2019-12-27 08:42:18,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:42:18,439 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [53592047] [2019-12-27 08:42:18,439 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:42:18,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:42:18,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:42:18,547 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [53592047] [2019-12-27 08:42:18,547 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:42:18,547 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:42:18,548 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580099888] [2019-12-27 08:42:18,549 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:42:18,550 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:42:18,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:42:18,550 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:18,550 INFO L87 Difference]: Start difference. First operand 1041 states and 3100 transitions. Second operand 3 states. [2019-12-27 08:42:18,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:42:18,609 INFO L93 Difference]: Finished difference Result 1056 states and 3073 transitions. [2019-12-27 08:42:18,609 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:42:18,609 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 22 [2019-12-27 08:42:18,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:42:18,618 INFO L225 Difference]: With dead ends: 1056 [2019-12-27 08:42:18,619 INFO L226 Difference]: Without dead ends: 858 [2019-12-27 08:42:18,620 INFO L631 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 [2019-12-27 08:42:18,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 858 states. [2019-12-27 08:42:18,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 858 to 804. [2019-12-27 08:42:18,648 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 804 states. [2019-12-27 08:42:18,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 804 states to 804 states and 2363 transitions. [2019-12-27 08:42:18,655 INFO L78 Accepts]: Start accepts. Automaton has 804 states and 2363 transitions. Word has length 22 [2019-12-27 08:42:18,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:42:18,655 INFO L462 AbstractCegarLoop]: Abstraction has 804 states and 2363 transitions. [2019-12-27 08:42:18,656 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:42:18,661 INFO L276 IsEmpty]: Start isEmpty. Operand 804 states and 2363 transitions. [2019-12-27 08:42:18,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-27 08:42:18,670 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:42:18,670 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:42:18,671 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:42:18,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:42:18,671 INFO L82 PathProgramCache]: Analyzing trace with hash 83321518, now seen corresponding path program 1 times [2019-12-27 08:42:18,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:42:18,673 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [503651803] [2019-12-27 08:42:18,673 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:42:18,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:42:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:42:18,771 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [503651803] [2019-12-27 08:42:18,771 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:42:18,771 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:42:18,772 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477802027] [2019-12-27 08:42:18,772 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:42:18,772 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:42:18,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:42:18,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:18,773 INFO L87 Difference]: Start difference. First operand 804 states and 2363 transitions. Second operand 3 states. [2019-12-27 08:42:18,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:42:18,818 INFO L93 Difference]: Finished difference Result 744 states and 2156 transitions. [2019-12-27 08:42:18,819 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:42:18,819 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 25 [2019-12-27 08:42:18,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:42:18,823 INFO L225 Difference]: With dead ends: 744 [2019-12-27 08:42:18,824 INFO L226 Difference]: Without dead ends: 531 [2019-12-27 08:42:18,824 INFO L631 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 [2019-12-27 08:42:18,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 531 states. [2019-12-27 08:42:18,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 531 to 531. [2019-12-27 08:42:18,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 531 states. [2019-12-27 08:42:18,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 531 states to 531 states and 1533 transitions. [2019-12-27 08:42:18,842 INFO L78 Accepts]: Start accepts. Automaton has 531 states and 1533 transitions. Word has length 25 [2019-12-27 08:42:18,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:42:18,847 INFO L462 AbstractCegarLoop]: Abstraction has 531 states and 1533 transitions. [2019-12-27 08:42:18,847 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:42:18,847 INFO L276 IsEmpty]: Start isEmpty. Operand 531 states and 1533 transitions. [2019-12-27 08:42:18,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 08:42:18,849 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:42:18,850 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:42:18,850 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:42:18,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:42:18,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1070795303, now seen corresponding path program 1 times [2019-12-27 08:42:18,851 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:42:18,851 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [549016870] [2019-12-27 08:42:18,851 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:42:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:42:18,939 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:42:18,940 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [549016870] [2019-12-27 08:42:18,940 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:42:18,940 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:42:18,940 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1455997131] [2019-12-27 08:42:18,941 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:42:18,941 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:42:18,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:42:18,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:18,942 INFO L87 Difference]: Start difference. First operand 531 states and 1533 transitions. Second operand 3 states. [2019-12-27 08:42:19,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:42:19,019 INFO L93 Difference]: Finished difference Result 579 states and 1634 transitions. [2019-12-27 08:42:19,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:42:19,020 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-27 08:42:19,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:42:19,024 INFO L225 Difference]: With dead ends: 579 [2019-12-27 08:42:19,024 INFO L226 Difference]: Without dead ends: 465 [2019-12-27 08:42:19,025 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:19,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2019-12-27 08:42:19,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 465. [2019-12-27 08:42:19,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-12-27 08:42:19,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1270 transitions. [2019-12-27 08:42:19,042 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1270 transitions. Word has length 33 [2019-12-27 08:42:19,043 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:42:19,043 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 1270 transitions. [2019-12-27 08:42:19,043 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:42:19,043 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1270 transitions. [2019-12-27 08:42:19,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 08:42:19,045 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:42:19,045 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:42:19,045 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:42:19,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:42:19,046 INFO L82 PathProgramCache]: Analyzing trace with hash 1753705717, now seen corresponding path program 1 times [2019-12-27 08:42:19,046 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:42:19,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [74124066] [2019-12-27 08:42:19,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:42:19,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:42:19,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:42:19,147 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [74124066] [2019-12-27 08:42:19,148 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:42:19,148 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:42:19,148 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443401996] [2019-12-27 08:42:19,149 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:42:19,150 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:42:19,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:42:19,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:19,151 INFO L87 Difference]: Start difference. First operand 465 states and 1270 transitions. Second operand 3 states. [2019-12-27 08:42:19,228 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:42:19,228 INFO L93 Difference]: Finished difference Result 510 states and 1349 transitions. [2019-12-27 08:42:19,229 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:42:19,229 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-27 08:42:19,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:42:19,233 INFO L225 Difference]: With dead ends: 510 [2019-12-27 08:42:19,233 INFO L226 Difference]: Without dead ends: 483 [2019-12-27 08:42:19,233 INFO L631 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 [2019-12-27 08:42:19,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 483 states. [2019-12-27 08:42:19,246 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 483 to 465. [2019-12-27 08:42:19,246 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 465 states. [2019-12-27 08:42:19,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 465 states to 465 states and 1225 transitions. [2019-12-27 08:42:19,250 INFO L78 Accepts]: Start accepts. Automaton has 465 states and 1225 transitions. Word has length 33 [2019-12-27 08:42:19,250 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:42:19,250 INFO L462 AbstractCegarLoop]: Abstraction has 465 states and 1225 transitions. [2019-12-27 08:42:19,251 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:42:19,251 INFO L276 IsEmpty]: Start isEmpty. Operand 465 states and 1225 transitions. [2019-12-27 08:42:19,255 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 08:42:19,255 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:42:19,255 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:42:19,256 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:42:19,256 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:42:19,256 INFO L82 PathProgramCache]: Analyzing trace with hash -1577988623, now seen corresponding path program 2 times [2019-12-27 08:42:19,257 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:42:19,257 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794987782] [2019-12-27 08:42:19,258 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:42:19,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:42:19,314 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:42:19,315 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794987782] [2019-12-27 08:42:19,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:42:19,316 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:42:19,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985872009] [2019-12-27 08:42:19,316 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:42:19,316 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:42:19,318 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:42:19,319 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:19,319 INFO L87 Difference]: Start difference. First operand 465 states and 1225 transitions. Second operand 3 states. [2019-12-27 08:42:19,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:42:19,372 INFO L93 Difference]: Finished difference Result 435 states and 1106 transitions. [2019-12-27 08:42:19,375 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:42:19,375 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-27 08:42:19,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:42:19,381 INFO L225 Difference]: With dead ends: 435 [2019-12-27 08:42:19,382 INFO L226 Difference]: Without dead ends: 435 [2019-12-27 08:42:19,382 INFO L631 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 [2019-12-27 08:42:19,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 435 states. [2019-12-27 08:42:19,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 435 to 435. [2019-12-27 08:42:19,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2019-12-27 08:42:19,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 1106 transitions. [2019-12-27 08:42:19,399 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 1106 transitions. Word has length 33 [2019-12-27 08:42:19,399 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:42:19,400 INFO L462 AbstractCegarLoop]: Abstraction has 435 states and 1106 transitions. [2019-12-27 08:42:19,400 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:42:19,400 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 1106 transitions. [2019-12-27 08:42:19,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 08:42:19,401 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:42:19,402 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:42:19,402 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:42:19,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:42:19,402 INFO L82 PathProgramCache]: Analyzing trace with hash -983973651, now seen corresponding path program 3 times [2019-12-27 08:42:19,403 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:42:19,403 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583280734] [2019-12-27 08:42:19,403 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:42:19,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:42:19,450 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 08:42:19,451 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583280734] [2019-12-27 08:42:19,451 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:42:19,451 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:42:19,452 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154821154] [2019-12-27 08:42:19,452 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:42:19,453 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:42:19,453 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:42:19,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:19,454 INFO L87 Difference]: Start difference. First operand 435 states and 1106 transitions. Second operand 3 states. [2019-12-27 08:42:19,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:42:19,492 INFO L93 Difference]: Finished difference Result 306 states and 789 transitions. [2019-12-27 08:42:19,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:42:19,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 33 [2019-12-27 08:42:19,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:42:19,493 INFO L225 Difference]: With dead ends: 306 [2019-12-27 08:42:19,493 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:42:19,494 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:42:19,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:42:19,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:42:19,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:42:19,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:42:19,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-27 08:42:19,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:42:19,495 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:42:19,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:42:19,495 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:42:19,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:42:19,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:42:19 BasicIcfg [2019-12-27 08:42:19,501 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:42:19,504 INFO L168 Benchmark]: Toolchain (without parser) took 3251.67 ms. Allocated memory was 148.4 MB in the beginning and 243.8 MB in the end (delta: 95.4 MB). Free memory was 105.0 MB in the beginning and 203.0 MB in the end (delta: -98.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 08:42:19,504 INFO L168 Benchmark]: CDTParser took 0.42 ms. Allocated memory is still 148.4 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 08:42:19,505 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.39 ms. Allocated memory was 148.4 MB in the beginning and 207.6 MB in the end (delta: 59.2 MB). Free memory was 104.8 MB in the beginning and 165.9 MB in the end (delta: -61.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:42:19,506 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.49 ms. Allocated memory is still 207.6 MB. Free memory was 165.9 MB in the beginning and 163.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. [2019-12-27 08:42:19,507 INFO L168 Benchmark]: Boogie Preprocessor took 45.28 ms. Allocated memory is still 207.6 MB. Free memory was 163.3 MB in the beginning and 162.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:42:19,508 INFO L168 Benchmark]: RCFGBuilder took 467.57 ms. Allocated memory is still 207.6 MB. Free memory was 162.0 MB in the beginning and 139.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:42:19,508 INFO L168 Benchmark]: TraceAbstraction took 1891.67 ms. Allocated memory was 207.6 MB in the beginning and 243.8 MB in the end (delta: 36.2 MB). Free memory was 139.3 MB in the beginning and 203.0 MB in the end (delta: -63.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 08:42:19,512 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.42 ms. Allocated memory is still 148.4 MB. Free memory was 124.7 MB in the beginning and 124.5 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.39 ms. Allocated memory was 148.4 MB in the beginning and 207.6 MB in the end (delta: 59.2 MB). Free memory was 104.8 MB in the beginning and 165.9 MB in the end (delta: -61.1 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 74.49 ms. Allocated memory is still 207.6 MB. Free memory was 165.9 MB in the beginning and 163.3 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 45.28 ms. Allocated memory is still 207.6 MB. Free memory was 163.3 MB in the beginning and 162.0 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 467.57 ms. Allocated memory is still 207.6 MB. Free memory was 162.0 MB in the beginning and 139.9 MB in the end (delta: 22.1 MB). Peak memory consumption was 22.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 1891.67 ms. Allocated memory was 207.6 MB in the beginning and 243.8 MB in the end (delta: 36.2 MB). Free memory was 139.3 MB in the beginning and 203.0 MB in the end (delta: -63.7 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 702]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 686]: 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 3 procedures, 66 locations, 2 error locations. Result: SAFE, OverallTime: 1.7s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 534 SDtfs, 178 SDslu, 231 SDs, 0 SdLazy, 82 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 2 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1155occurred 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: 0.2s AutomataMinimizationTime, 7 MinimizatonAttempts, 72 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 201 NumberOfCodeBlocks, 201 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 194 ConstructedInterpolants, 0 QuantifiedInterpolants, 7308 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...