/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-b981219 [2020-04-17 14:31:07,575 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-04-17 14:31:07,577 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-04-17 14:31:07,589 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-04-17 14:31:07,589 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-04-17 14:31:07,590 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-04-17 14:31:07,591 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-04-17 14:31:07,593 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-04-17 14:31:07,595 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-04-17 14:31:07,596 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-04-17 14:31:07,597 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-04-17 14:31:07,598 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-04-17 14:31:07,598 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-04-17 14:31:07,602 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-04-17 14:31:07,604 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-04-17 14:31:07,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-04-17 14:31:07,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-04-17 14:31:07,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-04-17 14:31:07,610 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-04-17 14:31:07,613 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-04-17 14:31:07,617 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-04-17 14:31:07,618 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-04-17 14:31:07,619 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-04-17 14:31:07,620 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-04-17 14:31:07,624 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-04-17 14:31:07,625 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-04-17 14:31:07,625 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-04-17 14:31:07,626 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-04-17 14:31:07,628 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-04-17 14:31:07,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-04-17 14:31:07,631 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-04-17 14:31:07,632 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-04-17 14:31:07,633 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-04-17 14:31:07,634 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-04-17 14:31:07,636 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-04-17 14:31:07,636 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-04-17 14:31:07,637 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-04-17 14:31:07,637 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-04-17 14:31:07,637 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-04-17 14:31:07,641 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-04-17 14:31:07,642 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-04-17 14:31:07,643 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-04-17 14:31:07,668 INFO L113 SettingsManager]: Loading preferences was successful [2020-04-17 14:31:07,668 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-04-17 14:31:07,669 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-04-17 14:31:07,670 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-04-17 14:31:07,670 INFO L138 SettingsManager]: * Use SBE=true [2020-04-17 14:31:07,670 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-04-17 14:31:07,670 INFO L138 SettingsManager]: * sizeof long=4 [2020-04-17 14:31:07,671 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-04-17 14:31:07,671 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-04-17 14:31:07,671 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-04-17 14:31:07,672 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-04-17 14:31:07,672 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-04-17 14:31:07,672 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-04-17 14:31:07,673 INFO L138 SettingsManager]: * sizeof long double=12 [2020-04-17 14:31:07,673 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-04-17 14:31:07,673 INFO L138 SettingsManager]: * Use constant arrays=true [2020-04-17 14:31:07,673 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-04-17 14:31:07,674 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-04-17 14:31:07,674 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-04-17 14:31:07,674 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-04-17 14:31:07,675 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-04-17 14:31:07,675 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 14:31:07,675 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-04-17 14:31:07,675 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-04-17 14:31:07,675 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-04-17 14:31:07,676 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-04-17 14:31:07,676 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-04-17 14:31:07,676 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-04-17 14:31:07,676 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-04-17 14:31:07,676 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-04-17 14:31:07,940 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-04-17 14:31:07,955 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-04-17 14:31:07,958 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-04-17 14:31:07,959 INFO L271 PluginConnector]: Initializing CDTParser... [2020-04-17 14:31:07,960 INFO L275 PluginConnector]: CDTParser initialized [2020-04-17 14:31:07,960 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-04-17 14:31:08,019 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ff647fa/368a7287363a443fb41fd5e4bd184f54/FLAG012555ea5 [2020-04-17 14:31:08,564 INFO L306 CDTParser]: Found 1 translation units. [2020-04-17 14:31:08,565 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/read_write_lock-1.i [2020-04-17 14:31:08,582 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ff647fa/368a7287363a443fb41fd5e4bd184f54/FLAG012555ea5 [2020-04-17 14:31:08,871 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/37ff647fa/368a7287363a443fb41fd5e4bd184f54 [2020-04-17 14:31:08,880 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-04-17 14:31:08,903 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-04-17 14:31:08,904 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-04-17 14:31:08,904 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-04-17 14:31:08,907 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-04-17 14:31:08,908 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 02:31:08" (1/1) ... [2020-04-17 14:31:08,911 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15eb6cf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:08, skipping insertion in model container [2020-04-17 14:31:08,912 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.04 02:31:08" (1/1) ... [2020-04-17 14:31:08,917 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-04-17 14:31:08,955 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-04-17 14:31:09,377 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 14:31:09,388 INFO L203 MainTranslator]: Completed pre-run [2020-04-17 14:31:09,436 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-04-17 14:31:09,521 INFO L208 MainTranslator]: Completed translation [2020-04-17 14:31:09,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09 WrapperNode [2020-04-17 14:31:09,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-04-17 14:31:09,524 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-04-17 14:31:09,524 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-04-17 14:31:09,524 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-04-17 14:31:09,533 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,551 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,576 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-04-17 14:31:09,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-04-17 14:31:09,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-04-17 14:31:09,577 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-04-17 14:31:09,586 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,586 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,589 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,596 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,598 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,600 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... [2020-04-17 14:31:09,604 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-04-17 14:31:09,604 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-04-17 14:31:09,604 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-04-17 14:31:09,604 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-04-17 14:31:09,607 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-04-17 14:31:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-04-17 14:31:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-04-17 14:31:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure reader [2020-04-17 14:31:09,668 INFO L138 BoogieDeclarations]: Found implementation of procedure reader [2020-04-17 14:31:09,668 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-04-17 14:31:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-04-17 14:31:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-04-17 14:31:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-04-17 14:31:09,669 INFO L130 BoogieDeclarations]: Found specification of procedure writer [2020-04-17 14:31:09,669 INFO L138 BoogieDeclarations]: Found implementation of procedure writer [2020-04-17 14:31:09,671 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-04-17 14:31:10,211 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-04-17 14:31:10,212 INFO L295 CfgBuilder]: Removed 4 assume(true) statements. [2020-04-17 14:31:10,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 02:31:10 BoogieIcfgContainer [2020-04-17 14:31:10,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-04-17 14:31:10,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-04-17 14:31:10,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-04-17 14:31:10,221 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-04-17 14:31:10,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.04 02:31:08" (1/3) ... [2020-04-17 14:31:10,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9a7720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 02:31:10, skipping insertion in model container [2020-04-17 14:31:10,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.04 02:31:09" (2/3) ... [2020-04-17 14:31:10,223 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c9a7720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.04 02:31:10, skipping insertion in model container [2020-04-17 14:31:10,223 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.04 02:31:10" (3/3) ... [2020-04-17 14:31:10,225 INFO L109 eAbstractionObserver]: Analyzing ICFG read_write_lock-1.i [2020-04-17 14:31:10,236 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-04-17 14:31:10,236 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-04-17 14:31:10,247 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-04-17 14:31:10,248 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-04-17 14:31:10,289 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,289 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,289 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,290 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,290 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,291 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,291 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,291 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,291 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,292 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,293 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,294 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,294 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,294 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,294 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,295 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,295 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,295 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,295 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,296 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,296 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,296 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,297 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,297 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,298 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,298 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,298 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,298 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,299 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,299 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,299 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,299 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,300 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,300 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,300 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,300 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,301 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,301 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,312 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,313 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,314 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,314 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,315 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,315 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,317 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,318 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,318 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,318 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,319 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,319 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,319 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork1_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,322 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,323 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,323 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,323 WARN L315 ript$VariableManager]: TermVariabe |writerThread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,323 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,324 WARN L315 ript$VariableManager]: TermVariabe writerThread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,329 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~l~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,329 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_assume_abort_if_not_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,329 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_assume_abort_if_not_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,330 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,330 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,330 WARN L315 ript$VariableManager]: TermVariabe readerThread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,330 WARN L315 ript$VariableManager]: TermVariabe |readerThread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-04-17 14:31:10,372 INFO L251 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2020-04-17 14:31:10,393 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-04-17 14:31:10,393 INFO L376 AbstractCegarLoop]: Hoare is true [2020-04-17 14:31:10,393 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-04-17 14:31:10,393 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-04-17 14:31:10,393 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-04-17 14:31:10,393 INFO L380 AbstractCegarLoop]: Difference is false [2020-04-17 14:31:10,394 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-04-17 14:31:10,394 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-04-17 14:31:10,410 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 99 places, 100 transitions, 268 flow [2020-04-17 14:31:10,412 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 268 flow [2020-04-17 14:31:10,476 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2020-04-17 14:31:10,476 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-04-17 14:31:10,485 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 134 events. 19/134 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 336 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 91. Up to 12 conditions per place. [2020-04-17 14:31:10,496 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 100 transitions, 268 flow [2020-04-17 14:31:10,551 INFO L129 PetriNetUnfolder]: 19/134 cut-off events. [2020-04-17 14:31:10,552 INFO L130 PetriNetUnfolder]: For 32/32 co-relation queries the response was YES. [2020-04-17 14:31:10,554 INFO L80 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 134 events. 19/134 cut-off events. For 32/32 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 336 event pairs, 0 based on Foata normal form. 0/130 useless extension candidates. Maximal degree in co-relation 91. Up to 12 conditions per place. [2020-04-17 14:31:10,561 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 2448 [2020-04-17 14:31:10,563 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-04-17 14:31:12,320 WARN L192 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2020-04-17 14:31:12,441 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 63 [2020-04-17 14:31:12,473 INFO L206 etLargeBlockEncoding]: Checked pairs total: 6576 [2020-04-17 14:31:12,473 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2020-04-17 14:31:12,477 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 56 places, 55 transitions, 178 flow [2020-04-17 14:31:12,830 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 4306 states. [2020-04-17 14:31:12,832 INFO L276 IsEmpty]: Start isEmpty. Operand 4306 states. [2020-04-17 14:31:12,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-04-17 14:31:12,840 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:12,841 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:12,842 INFO L427 AbstractCegarLoop]: === Iteration 1 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 14:31:12,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:12,848 INFO L82 PathProgramCache]: Analyzing trace with hash -947191722, now seen corresponding path program 1 times [2020-04-17 14:31:12,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:12,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202223164] [2020-04-17 14:31:12,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:13,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:13,121 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:13,122 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202223164] [2020-04-17 14:31:13,123 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:13,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 14:31:13,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290749078] [2020-04-17 14:31:13,135 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 14:31:13,135 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:13,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 14:31:13,164 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 14:31:13,167 INFO L87 Difference]: Start difference. First operand 4306 states. Second operand 4 states. [2020-04-17 14:31:13,453 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:13,453 INFO L93 Difference]: Finished difference Result 9727 states and 31398 transitions. [2020-04-17 14:31:13,454 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 14:31:13,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2020-04-17 14:31:13,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:13,549 INFO L225 Difference]: With dead ends: 9727 [2020-04-17 14:31:13,550 INFO L226 Difference]: Without dead ends: 7325 [2020-04-17 14:31:13,551 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 14:31:13,621 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7325 states. [2020-04-17 14:31:13,859 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7325 to 4376. [2020-04-17 14:31:13,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4376 states. [2020-04-17 14:31:13,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4376 states to 4376 states and 14751 transitions. [2020-04-17 14:31:13,888 INFO L78 Accepts]: Start accepts. Automaton has 4376 states and 14751 transitions. Word has length 8 [2020-04-17 14:31:13,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:13,889 INFO L479 AbstractCegarLoop]: Abstraction has 4376 states and 14751 transitions. [2020-04-17 14:31:13,889 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 14:31:13,889 INFO L276 IsEmpty]: Start isEmpty. Operand 4376 states and 14751 transitions. [2020-04-17 14:31:13,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 14:31:13,891 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:13,891 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:13,891 INFO L427 AbstractCegarLoop]: === Iteration 2 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 14:31:13,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:13,892 INFO L82 PathProgramCache]: Analyzing trace with hash 284128253, now seen corresponding path program 1 times [2020-04-17 14:31:13,892 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:13,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427252373] [2020-04-17 14:31:13,892 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:13,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:13,942 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427252373] [2020-04-17 14:31:13,943 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:13,943 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 14:31:13,943 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [812072365] [2020-04-17 14:31:13,945 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 14:31:13,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:13,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 14:31:13,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-17 14:31:13,946 INFO L87 Difference]: Start difference. First operand 4376 states and 14751 transitions. Second operand 4 states. [2020-04-17 14:31:14,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:14,024 INFO L93 Difference]: Finished difference Result 5506 states and 16458 transitions. [2020-04-17 14:31:14,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-04-17 14:31:14,025 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-04-17 14:31:14,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:14,065 INFO L225 Difference]: With dead ends: 5506 [2020-04-17 14:31:14,065 INFO L226 Difference]: Without dead ends: 5395 [2020-04-17 14:31:14,066 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-04-17 14:31:14,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5395 states. [2020-04-17 14:31:14,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5395 to 4690. [2020-04-17 14:31:14,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4690 states. [2020-04-17 14:31:14,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4690 states to 4690 states and 14325 transitions. [2020-04-17 14:31:14,231 INFO L78 Accepts]: Start accepts. Automaton has 4690 states and 14325 transitions. Word has length 10 [2020-04-17 14:31:14,231 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:14,231 INFO L479 AbstractCegarLoop]: Abstraction has 4690 states and 14325 transitions. [2020-04-17 14:31:14,231 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 14:31:14,231 INFO L276 IsEmpty]: Start isEmpty. Operand 4690 states and 14325 transitions. [2020-04-17 14:31:14,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-04-17 14:31:14,233 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:14,233 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:14,233 INFO L427 AbstractCegarLoop]: === Iteration 3 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 14:31:14,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:14,234 INFO L82 PathProgramCache]: Analyzing trace with hash 78570353, now seen corresponding path program 2 times [2020-04-17 14:31:14,234 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:14,234 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [60829949] [2020-04-17 14:31:14,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:14,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:14,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:14,287 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [60829949] [2020-04-17 14:31:14,288 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:14,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 14:31:14,288 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862822705] [2020-04-17 14:31:14,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-04-17 14:31:14,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:14,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-04-17 14:31:14,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:31:14,290 INFO L87 Difference]: Start difference. First operand 4690 states and 14325 transitions. Second operand 3 states. [2020-04-17 14:31:14,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:14,334 INFO L93 Difference]: Finished difference Result 2214 states and 5412 transitions. [2020-04-17 14:31:14,334 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-04-17 14:31:14,334 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-04-17 14:31:14,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:14,360 INFO L225 Difference]: With dead ends: 2214 [2020-04-17 14:31:14,361 INFO L226 Difference]: Without dead ends: 2145 [2020-04-17 14:31:14,361 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-04-17 14:31:14,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2145 states. [2020-04-17 14:31:14,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2145 to 2145. [2020-04-17 14:31:14,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2145 states. [2020-04-17 14:31:14,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2145 states to 2145 states and 5284 transitions. [2020-04-17 14:31:14,421 INFO L78 Accepts]: Start accepts. Automaton has 2145 states and 5284 transitions. Word has length 10 [2020-04-17 14:31:14,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:14,422 INFO L479 AbstractCegarLoop]: Abstraction has 2145 states and 5284 transitions. [2020-04-17 14:31:14,422 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-04-17 14:31:14,423 INFO L276 IsEmpty]: Start isEmpty. Operand 2145 states and 5284 transitions. [2020-04-17 14:31:14,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-04-17 14:31:14,429 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:14,429 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:14,429 INFO L427 AbstractCegarLoop]: === Iteration 4 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 14:31:14,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:14,429 INFO L82 PathProgramCache]: Analyzing trace with hash 704389695, now seen corresponding path program 1 times [2020-04-17 14:31:14,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:14,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397259362] [2020-04-17 14:31:14,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:14,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:14,559 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:14,560 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397259362] [2020-04-17 14:31:14,560 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:14,560 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-04-17 14:31:14,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [889551266] [2020-04-17 14:31:14,561 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-04-17 14:31:14,561 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:14,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-04-17 14:31:14,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-04-17 14:31:14,562 INFO L87 Difference]: Start difference. First operand 2145 states and 5284 transitions. Second operand 4 states. [2020-04-17 14:31:14,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:14,706 INFO L93 Difference]: Finished difference Result 2539 states and 6160 transitions. [2020-04-17 14:31:14,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 14:31:14,706 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-04-17 14:31:14,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:14,724 INFO L225 Difference]: With dead ends: 2539 [2020-04-17 14:31:14,724 INFO L226 Difference]: Without dead ends: 1750 [2020-04-17 14:31:14,724 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-04-17 14:31:14,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1750 states. [2020-04-17 14:31:14,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1750 to 1376. [2020-04-17 14:31:14,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1376 states. [2020-04-17 14:31:14,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1376 states to 1376 states and 3414 transitions. [2020-04-17 14:31:14,762 INFO L78 Accepts]: Start accepts. Automaton has 1376 states and 3414 transitions. Word has length 12 [2020-04-17 14:31:14,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:14,764 INFO L479 AbstractCegarLoop]: Abstraction has 1376 states and 3414 transitions. [2020-04-17 14:31:14,766 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-04-17 14:31:14,766 INFO L276 IsEmpty]: Start isEmpty. Operand 1376 states and 3414 transitions. [2020-04-17 14:31:14,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2020-04-17 14:31:14,768 INFO L417 BasicCegarLoop]: Found error trace [2020-04-17 14:31:14,768 INFO L425 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-04-17 14:31:14,768 INFO L427 AbstractCegarLoop]: === Iteration 5 === [readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, readerErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2020-04-17 14:31:14,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-04-17 14:31:14,768 INFO L82 PathProgramCache]: Analyzing trace with hash 1336794727, now seen corresponding path program 1 times [2020-04-17 14:31:14,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-04-17 14:31:14,769 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [664445216] [2020-04-17 14:31:14,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-04-17 14:31:14,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-04-17 14:31:14,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-04-17 14:31:14,853 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [664445216] [2020-04-17 14:31:14,853 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-04-17 14:31:14,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-04-17 14:31:14,854 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057711639] [2020-04-17 14:31:14,854 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-04-17 14:31:14,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-04-17 14:31:14,855 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-04-17 14:31:14,855 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 14:31:14,855 INFO L87 Difference]: Start difference. First operand 1376 states and 3414 transitions. Second operand 5 states. [2020-04-17 14:31:14,907 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-04-17 14:31:14,907 INFO L93 Difference]: Finished difference Result 530 states and 1160 transitions. [2020-04-17 14:31:14,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-04-17 14:31:14,912 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 19 [2020-04-17 14:31:14,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-04-17 14:31:14,913 INFO L225 Difference]: With dead ends: 530 [2020-04-17 14:31:14,913 INFO L226 Difference]: Without dead ends: 0 [2020-04-17 14:31:14,913 INFO L678 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2020-04-17 14:31:14,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-04-17 14:31:14,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-04-17 14:31:14,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-04-17 14:31:14,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-04-17 14:31:14,914 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2020-04-17 14:31:14,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-04-17 14:31:14,914 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-04-17 14:31:14,915 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-04-17 14:31:14,915 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-04-17 14:31:14,915 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-04-17 14:31:14,919 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.04 02:31:14 BasicIcfg [2020-04-17 14:31:14,919 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-04-17 14:31:14,924 INFO L168 Benchmark]: Toolchain (without parser) took 6039.82 ms. Allocated memory was 137.9 MB in the beginning and 292.0 MB in the end (delta: 154.1 MB). Free memory was 99.7 MB in the beginning and 186.5 MB in the end (delta: -86.8 MB). Peak memory consumption was 67.3 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:14,925 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2020-04-17 14:31:14,928 INFO L168 Benchmark]: CACSL2BoogieTranslator took 619.65 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 97.8 MB in the beginning and 162.0 MB in the end (delta: -64.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:14,929 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 202.9 MB. Free memory was 162.0 MB in the beginning and 159.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:14,930 INFO L168 Benchmark]: Boogie Preprocessor took 27.42 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:14,931 INFO L168 Benchmark]: RCFGBuilder took 611.90 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 125.6 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:14,932 INFO L168 Benchmark]: TraceAbstraction took 4702.25 ms. Allocated memory was 202.9 MB in the beginning and 292.0 MB in the end (delta: 89.1 MB). Free memory was 124.9 MB in the beginning and 186.5 MB in the end (delta: -61.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. [2020-04-17 14:31:14,941 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.5 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 619.65 ms. Allocated memory was 137.9 MB in the beginning and 202.9 MB in the end (delta: 65.0 MB). Free memory was 97.8 MB in the beginning and 162.0 MB in the end (delta: -64.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.32 ms. Allocated memory is still 202.9 MB. Free memory was 162.0 MB in the beginning and 159.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.42 ms. Allocated memory is still 202.9 MB. Free memory was 159.2 MB in the beginning and 157.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 611.90 ms. Allocated memory is still 202.9 MB. Free memory was 157.9 MB in the beginning and 125.6 MB in the end (delta: 32.3 MB). Peak memory consumption was 32.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4702.25 ms. Allocated memory was 202.9 MB in the beginning and 292.0 MB in the end (delta: 89.1 MB). Free memory was 124.9 MB in the beginning and 186.5 MB in the end (delta: -61.6 MB). Peak memory consumption was 27.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.0s, 99 ProgramPointsBefore, 56 ProgramPointsAfterwards, 100 TransitionsBefore, 55 TransitionsAfterwards, 2448 CoEnabledTransitionPairs, 6 FixpointIterations, 23 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 2 ChoiceCompositions, 1014 VarBasedMoverChecksPositive, 40 VarBasedMoverChecksNegative, 17 SemBasedMoverChecksPositive, 46 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 0 MoverChecksTotal, 6576 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 700]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.4s, HoareTripleCheckerStatistics: 387 SDtfs, 359 SDslu, 341 SDs, 0 SdLazy, 104 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4690occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 4028 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 1574 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...