/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/concurrent/pthreads/pthreadExitSafe.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c1f4b5c [2019-12-17 10:59:17,861 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-17 10:59:17,863 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-17 10:59:17,875 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-17 10:59:17,876 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-17 10:59:17,877 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-17 10:59:17,878 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-17 10:59:17,880 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-17 10:59:17,885 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-17 10:59:17,886 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-17 10:59:17,887 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-17 10:59:17,888 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-17 10:59:17,888 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-17 10:59:17,893 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-17 10:59:17,895 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-17 10:59:17,896 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-17 10:59:17,897 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-17 10:59:17,901 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-17 10:59:17,903 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-17 10:59:17,905 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-17 10:59:17,910 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-17 10:59:17,912 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-17 10:59:17,913 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-17 10:59:17,913 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-17 10:59:17,918 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-17 10:59:17,919 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-17 10:59:17,919 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-17 10:59:17,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-17 10:59:17,922 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-17 10:59:17,924 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-17 10:59:17,925 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-17 10:59:17,925 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-17 10:59:17,926 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-17 10:59:17,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-17 10:59:17,931 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-17 10:59:17,931 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-17 10:59:17,932 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-17 10:59:17,932 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-17 10:59:17,933 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-17 10:59:17,935 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-17 10:59:17,936 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-17 10:59:17,937 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 [2019-12-17 10:59:17,958 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-17 10:59:17,959 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-17 10:59:17,961 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-17 10:59:17,961 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-17 10:59:17,961 INFO L138 SettingsManager]: * Use SBE=true [2019-12-17 10:59:17,961 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-17 10:59:17,962 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-17 10:59:17,962 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-17 10:59:17,962 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-17 10:59:17,962 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-17 10:59:17,963 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-17 10:59:17,964 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-17 10:59:17,964 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-17 10:59:17,965 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-17 10:59:17,965 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-17 10:59:17,965 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-17 10:59:17,965 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-17 10:59:17,965 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-17 10:59:17,966 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-17 10:59:17,966 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-17 10:59:17,966 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-17 10:59:17,966 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-17 10:59:17,966 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-17 10:59:17,967 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-17 10:59:17,967 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-17 10:59:17,967 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-17 10:59:17,967 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-17 10:59:17,967 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-17 10:59:17,968 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=FINITE_AUTOMATA [2019-12-17 10:59:17,968 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-17 10:59:17,969 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-17 10:59:18,265 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-17 10:59:18,283 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-17 10:59:18,286 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-17 10:59:18,288 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-17 10:59:18,288 INFO L275 PluginConnector]: CDTParser initialized [2019-12-17 10:59:18,289 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/pthreads/pthreadExitSafe.c [2019-12-17 10:59:18,357 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab3fbc4be/5869b9efad8f4fa68536686455470c1e/FLAG7fec1e324 [2019-12-17 10:59:18,804 INFO L306 CDTParser]: Found 1 translation units. [2019-12-17 10:59:18,806 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/concurrent/pthreads/pthreadExitSafe.c [2019-12-17 10:59:18,806 WARN L117 ultiparseSymbolTable]: System include pthread.h could not be resolved by CDT -- only built-in system includes are available. [2019-12-17 10:59:18,806 WARN L117 ultiparseSymbolTable]: System include stdio.h could not be resolved by CDT -- only built-in system includes are available. [2019-12-17 10:59:18,851 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab3fbc4be/5869b9efad8f4fa68536686455470c1e/FLAG7fec1e324 [2019-12-17 10:59:19,213 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ab3fbc4be/5869b9efad8f4fa68536686455470c1e [2019-12-17 10:59:19,225 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-17 10:59:19,227 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-17 10:59:19,228 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-17 10:59:19,228 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-17 10:59:19,232 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-17 10:59:19,233 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,236 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fc67bf3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19, skipping insertion in model container [2019-12-17 10:59:19,236 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,245 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-17 10:59:19,263 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-17 10:59:19,509 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-17 10:59:19,520 INFO L203 MainTranslator]: Completed pre-run [2019-12-17 10:59:19,532 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-17 10:59:19,545 INFO L208 MainTranslator]: Completed translation [2019-12-17 10:59:19,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19 WrapperNode [2019-12-17 10:59:19,546 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-17 10:59:19,547 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-17 10:59:19,547 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-17 10:59:19,547 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-17 10:59:19,556 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,563 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,579 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-17 10:59:19,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-17 10:59:19,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-17 10:59:19,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-17 10:59:19,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,593 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,593 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,599 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,601 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,602 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (1/1) ... [2019-12-17 10:59:19,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-17 10:59:19,605 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-17 10:59:19,605 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-17 10:59:19,605 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-17 10:59:19,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (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 [2019-12-17 10:59:19,663 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-12-17 10:59:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-17 10:59:19,664 INFO L130 BoogieDeclarations]: Found specification of procedure dec [2019-12-17 10:59:19,664 INFO L138 BoogieDeclarations]: Found implementation of procedure dec [2019-12-17 10:59:19,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-17 10:59:19,665 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-17 10:59:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-17 10:59:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-17 10:59:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-12-17 10:59:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-17 10:59:19,666 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-17 10:59:19,668 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-17 10:59:19,985 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-17 10:59:19,985 INFO L287 CfgBuilder]: Removed 4 assume(true) statements. [2019-12-17 10:59:19,987 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:59:19 BoogieIcfgContainer [2019-12-17 10:59:19,987 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-17 10:59:19,988 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-17 10:59:19,988 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-17 10:59:19,991 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-17 10:59:19,991 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 10:59:19" (1/3) ... [2019-12-17 10:59:19,992 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101a509e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:59:19, skipping insertion in model container [2019-12-17 10:59:19,992 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 10:59:19" (2/3) ... [2019-12-17 10:59:19,993 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@101a509e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 10:59:19, skipping insertion in model container [2019-12-17 10:59:19,993 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 10:59:19" (3/3) ... [2019-12-17 10:59:19,995 INFO L109 eAbstractionObserver]: Analyzing ICFG pthreadExitSafe.c [2019-12-17 10:59:20,003 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-17 10:59:20,004 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-17 10:59:20,010 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-17 10:59:20,011 INFO L339 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-17 10:59:20,034 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,034 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#in~n.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,034 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,035 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,035 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,035 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,035 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,035 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,036 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,036 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,036 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,036 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,037 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,037 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,037 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,037 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,038 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,038 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,038 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,038 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,039 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,039 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,043 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,043 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,043 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,043 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,044 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~post1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,044 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~ret~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,044 WARN L315 ript$VariableManager]: TermVariabe |decThread1of1ForFork0_#t~mem0| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,044 WARN L315 ript$VariableManager]: TermVariabe decThread1of1ForFork0_~n.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-17 10:59:20,071 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-12-17 10:59:20,091 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-17 10:59:20,092 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-17 10:59:20,092 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-17 10:59:20,092 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-17 10:59:20,092 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-17 10:59:20,092 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-17 10:59:20,092 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-17 10:59:20,093 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-17 10:59:20,106 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 47 places, 43 transitions [2019-12-17 10:59:20,123 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 70 states. [2019-12-17 10:59:20,127 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states. [2019-12-17 10:59:20,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-17 10:59:20,139 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:59:20,141 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-17 10:59:20,141 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:59:20,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:59:20,148 INFO L82 PathProgramCache]: Analyzing trace with hash 1559377560, now seen corresponding path program 1 times [2019-12-17 10:59:20,160 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:59:20,160 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [556287944] [2019-12-17 10:59:20,161 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:59:20,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:59:20,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:59:20,975 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [556287944] [2019-12-17 10:59:20,976 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:59:20,976 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-12-17 10:59:20,977 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [781069134] [2019-12-17 10:59:20,984 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-17 10:59:20,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:59:21,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-17 10:59:21,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-12-17 10:59:21,006 INFO L87 Difference]: Start difference. First operand 70 states. Second operand 18 states. [2019-12-17 10:59:22,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:59:22,463 INFO L93 Difference]: Finished difference Result 90 states and 117 transitions. [2019-12-17 10:59:22,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2019-12-17 10:59:22,466 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-17 10:59:22,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:59:22,476 INFO L225 Difference]: With dead ends: 90 [2019-12-17 10:59:22,476 INFO L226 Difference]: Without dead ends: 56 [2019-12-17 10:59:22,478 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=273, Invalid=1449, Unknown=0, NotChecked=0, Total=1722 [2019-12-17 10:59:22,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2019-12-17 10:59:22,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2019-12-17 10:59:22,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2019-12-17 10:59:22,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 78 transitions. [2019-12-17 10:59:22,513 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 78 transitions. Word has length 32 [2019-12-17 10:59:22,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:59:22,513 INFO L462 AbstractCegarLoop]: Abstraction has 56 states and 78 transitions. [2019-12-17 10:59:22,513 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-17 10:59:22,514 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 78 transitions. [2019-12-17 10:59:22,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-17 10:59:22,515 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:59:22,515 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-17 10:59:22,516 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:59:22,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:59:22,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1902808408, now seen corresponding path program 2 times [2019-12-17 10:59:22,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:59:22,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [853265292] [2019-12-17 10:59:22,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:59:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:59:22,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:59:22,848 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [853265292] [2019-12-17 10:59:22,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:59:22,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-12-17 10:59:22,849 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641596458] [2019-12-17 10:59:22,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-17 10:59:22,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:59:22,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-17 10:59:22,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-12-17 10:59:22,852 INFO L87 Difference]: Start difference. First operand 56 states and 78 transitions. Second operand 18 states. [2019-12-17 10:59:24,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:59:24,076 INFO L93 Difference]: Finished difference Result 75 states and 100 transitions. [2019-12-17 10:59:24,077 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-17 10:59:24,077 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-17 10:59:24,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:59:24,079 INFO L225 Difference]: With dead ends: 75 [2019-12-17 10:59:24,079 INFO L226 Difference]: Without dead ends: 50 [2019-12-17 10:59:24,082 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 170 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=291, Invalid=1269, Unknown=0, NotChecked=0, Total=1560 [2019-12-17 10:59:24,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2019-12-17 10:59:24,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2019-12-17 10:59:24,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2019-12-17 10:59:24,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 66 transitions. [2019-12-17 10:59:24,094 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 66 transitions. Word has length 32 [2019-12-17 10:59:24,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:59:24,095 INFO L462 AbstractCegarLoop]: Abstraction has 50 states and 66 transitions. [2019-12-17 10:59:24,095 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-17 10:59:24,095 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2019-12-17 10:59:24,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-17 10:59:24,099 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:59:24,099 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-17 10:59:24,100 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:59:24,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:59:24,100 INFO L82 PathProgramCache]: Analyzing trace with hash -900044116, now seen corresponding path program 3 times [2019-12-17 10:59:24,100 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:59:24,102 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306730641] [2019-12-17 10:59:24,102 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:59:24,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:59:24,445 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:59:24,445 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1306730641] [2019-12-17 10:59:24,446 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:59:24,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-12-17 10:59:24,446 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945124182] [2019-12-17 10:59:24,446 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-17 10:59:24,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:59:24,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-17 10:59:24,447 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-12-17 10:59:24,448 INFO L87 Difference]: Start difference. First operand 50 states and 66 transitions. Second operand 18 states. [2019-12-17 10:59:25,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:59:25,560 INFO L93 Difference]: Finished difference Result 71 states and 91 transitions. [2019-12-17 10:59:25,560 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2019-12-17 10:59:25,560 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-17 10:59:25,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:59:25,561 INFO L225 Difference]: With dead ends: 71 [2019-12-17 10:59:25,561 INFO L226 Difference]: Without dead ends: 48 [2019-12-17 10:59:25,563 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 178 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=281, Invalid=1279, Unknown=0, NotChecked=0, Total=1560 [2019-12-17 10:59:25,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2019-12-17 10:59:25,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2019-12-17 10:59:25,570 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2019-12-17 10:59:25,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 62 transitions. [2019-12-17 10:59:25,571 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 62 transitions. Word has length 32 [2019-12-17 10:59:25,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:59:25,572 INFO L462 AbstractCegarLoop]: Abstraction has 48 states and 62 transitions. [2019-12-17 10:59:25,572 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-17 10:59:25,572 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 62 transitions. [2019-12-17 10:59:25,573 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-17 10:59:25,573 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:59:25,573 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-17 10:59:25,573 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:59:25,574 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:59:25,574 INFO L82 PathProgramCache]: Analyzing trace with hash 1701444312, now seen corresponding path program 4 times [2019-12-17 10:59:25,574 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:59:25,574 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1651721956] [2019-12-17 10:59:25,575 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:59:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:59:25,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:59:25,803 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1651721956] [2019-12-17 10:59:25,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:59:25,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-12-17 10:59:25,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [923415647] [2019-12-17 10:59:25,804 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-17 10:59:25,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:59:25,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-17 10:59:25,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-12-17 10:59:25,804 INFO L87 Difference]: Start difference. First operand 48 states and 62 transitions. Second operand 18 states. [2019-12-17 10:59:26,799 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:59:26,799 INFO L93 Difference]: Finished difference Result 71 states and 90 transitions. [2019-12-17 10:59:26,800 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2019-12-17 10:59:26,800 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-17 10:59:26,800 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:59:26,801 INFO L225 Difference]: With dead ends: 71 [2019-12-17 10:59:26,802 INFO L226 Difference]: Without dead ends: 46 [2019-12-17 10:59:26,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=271, Invalid=1211, Unknown=0, NotChecked=0, Total=1482 [2019-12-17 10:59:26,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46 states. [2019-12-17 10:59:26,807 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46 to 46. [2019-12-17 10:59:26,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 46 states. [2019-12-17 10:59:26,808 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 58 transitions. [2019-12-17 10:59:26,808 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 58 transitions. Word has length 32 [2019-12-17 10:59:26,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:59:26,808 INFO L462 AbstractCegarLoop]: Abstraction has 46 states and 58 transitions. [2019-12-17 10:59:26,809 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-17 10:59:26,809 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 58 transitions. [2019-12-17 10:59:26,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-17 10:59:26,810 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:59:26,810 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-17 10:59:26,810 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:59:26,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:59:26,811 INFO L82 PathProgramCache]: Analyzing trace with hash -1454574612, now seen corresponding path program 5 times [2019-12-17 10:59:26,811 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:59:26,811 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1884898666] [2019-12-17 10:59:26,811 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:59:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:59:27,043 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:59:27,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1884898666] [2019-12-17 10:59:27,044 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:59:27,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-12-17 10:59:27,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879864162] [2019-12-17 10:59:27,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-17 10:59:27,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:59:27,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-17 10:59:27,046 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-12-17 10:59:27,046 INFO L87 Difference]: Start difference. First operand 46 states and 58 transitions. Second operand 18 states. [2019-12-17 10:59:27,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:59:27,981 INFO L93 Difference]: Finished difference Result 71 states and 89 transitions. [2019-12-17 10:59:27,981 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-12-17 10:59:27,982 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-17 10:59:27,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:59:27,982 INFO L225 Difference]: With dead ends: 71 [2019-12-17 10:59:27,983 INFO L226 Difference]: Without dead ends: 44 [2019-12-17 10:59:27,986 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=258, Invalid=1148, Unknown=0, NotChecked=0, Total=1406 [2019-12-17 10:59:27,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2019-12-17 10:59:27,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2019-12-17 10:59:27,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2019-12-17 10:59:27,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2019-12-17 10:59:27,994 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 32 [2019-12-17 10:59:27,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:59:27,995 INFO L462 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2019-12-17 10:59:27,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-17 10:59:27,995 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2019-12-17 10:59:27,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-17 10:59:27,997 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:59:27,997 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-17 10:59:27,998 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:59:28,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:59:28,000 INFO L82 PathProgramCache]: Analyzing trace with hash -1964225414, now seen corresponding path program 6 times [2019-12-17 10:59:28,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:59:28,001 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [149444573] [2019-12-17 10:59:28,001 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:59:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:59:28,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:59:28,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [149444573] [2019-12-17 10:59:28,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:59:28,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-12-17 10:59:28,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780249890] [2019-12-17 10:59:28,320 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-17 10:59:28,320 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:59:28,320 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-17 10:59:28,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-12-17 10:59:28,321 INFO L87 Difference]: Start difference. First operand 44 states and 54 transitions. Second operand 18 states. [2019-12-17 10:59:29,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:59:29,230 INFO L93 Difference]: Finished difference Result 71 states and 88 transitions. [2019-12-17 10:59:29,230 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-12-17 10:59:29,230 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-17 10:59:29,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:59:29,232 INFO L225 Difference]: With dead ends: 71 [2019-12-17 10:59:29,232 INFO L226 Difference]: Without dead ends: 42 [2019-12-17 10:59:29,233 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=258, Invalid=1148, Unknown=0, NotChecked=0, Total=1406 [2019-12-17 10:59:29,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2019-12-17 10:59:29,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2019-12-17 10:59:29,237 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2019-12-17 10:59:29,238 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2019-12-17 10:59:29,238 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 32 [2019-12-17 10:59:29,238 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:59:29,239 INFO L462 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2019-12-17 10:59:29,239 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-17 10:59:29,239 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2019-12-17 10:59:29,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-17 10:59:29,240 INFO L403 BasicCegarLoop]: Found error trace [2019-12-17 10:59:29,240 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-17 10:59:29,240 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2019-12-17 10:59:29,240 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-17 10:59:29,240 INFO L82 PathProgramCache]: Analyzing trace with hash -1777115510, now seen corresponding path program 7 times [2019-12-17 10:59:29,241 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-17 10:59:29,241 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [758933911] [2019-12-17 10:59:29,241 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-17 10:59:29,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-17 10:59:29,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-17 10:59:29,486 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [758933911] [2019-12-17 10:59:29,486 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-17 10:59:29,486 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2019-12-17 10:59:29,487 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [165684271] [2019-12-17 10:59:29,487 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-17 10:59:29,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-17 10:59:29,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-17 10:59:29,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=272, Unknown=0, NotChecked=0, Total=306 [2019-12-17 10:59:29,488 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 18 states. [2019-12-17 10:59:30,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-17 10:59:30,413 INFO L93 Difference]: Finished difference Result 41 states and 49 transitions. [2019-12-17 10:59:30,413 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2019-12-17 10:59:30,413 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 32 [2019-12-17 10:59:30,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-17 10:59:30,414 INFO L225 Difference]: With dead ends: 41 [2019-12-17 10:59:30,414 INFO L226 Difference]: Without dead ends: 0 [2019-12-17 10:59:30,415 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 136 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=258, Invalid=1148, Unknown=0, NotChecked=0, Total=1406 [2019-12-17 10:59:30,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-17 10:59:30,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-17 10:59:30,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-17 10:59:30,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-17 10:59:30,416 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-17 10:59:30,416 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-17 10:59:30,416 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-17 10:59:30,416 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-17 10:59:30,417 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-17 10:59:30,417 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-17 10:59:30,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 10:59:30 BasicIcfg [2019-12-17 10:59:30,421 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-17 10:59:30,423 INFO L168 Benchmark]: Toolchain (without parser) took 11196.07 ms. Allocated memory was 145.2 MB in the beginning and 316.1 MB in the end (delta: 170.9 MB). Free memory was 100.1 MB in the beginning and 224.7 MB in the end (delta: -124.6 MB). Peak memory consumption was 46.3 MB. Max. memory is 7.1 GB. [2019-12-17 10:59:30,424 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-17 10:59:30,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.05 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 179.2 MB in the end (delta: -79.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-12-17 10:59:30,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.37 ms. Allocated memory is still 202.4 MB. Free memory was 179.2 MB in the beginning and 177.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-17 10:59:30,427 INFO L168 Benchmark]: Boogie Preprocessor took 25.07 ms. Allocated memory is still 202.4 MB. Free memory was 177.8 MB in the beginning and 176.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-17 10:59:30,428 INFO L168 Benchmark]: RCFGBuilder took 382.29 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 159.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. [2019-12-17 10:59:30,429 INFO L168 Benchmark]: TraceAbstraction took 10433.16 ms. Allocated memory was 202.4 MB in the beginning and 316.1 MB in the end (delta: 113.8 MB). Free memory was 158.7 MB in the beginning and 224.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. [2019-12-17 10:59:30,433 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 145.2 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 318.05 ms. Allocated memory was 145.2 MB in the beginning and 202.4 MB in the end (delta: 57.1 MB). Free memory was 99.9 MB in the beginning and 179.2 MB in the end (delta: -79.4 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 32.37 ms. Allocated memory is still 202.4 MB. Free memory was 179.2 MB in the beginning and 177.8 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.07 ms. Allocated memory is still 202.4 MB. Free memory was 177.8 MB in the beginning and 176.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 382.29 ms. Allocated memory is still 202.4 MB. Free memory was 176.5 MB in the beginning and 159.4 MB in the end (delta: 17.1 MB). Peak memory consumption was 17.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10433.16 ms. Allocated memory was 202.4 MB in the beginning and 316.1 MB in the end (delta: 113.8 MB). Free memory was 158.7 MB in the beginning and 224.7 MB in the end (delta: -65.9 MB). Peak memory consumption was 47.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 29]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 44 locations, 1 error locations. Result: SAFE, OverallTime: 10.3s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 135 SDtfs, 1035 SDslu, 1618 SDs, 0 SdLazy, 2489 SolverSat, 179 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 275 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1152 ImplicationChecksByTransitivity, 6.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=70occurred 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, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 224 NumberOfCodeBlocks, 224 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 217 ConstructedInterpolants, 0 QuantifiedInterpolants, 61070 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...