/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-60729f1 [2020-11-11 23:51:51,804 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-11 23:51:51,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-11 23:51:51,841 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-11 23:51:51,841 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-11 23:51:51,843 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-11 23:51:51,844 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-11 23:51:51,847 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-11 23:51:51,849 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-11 23:51:51,850 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-11 23:51:51,851 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-11 23:51:51,853 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-11 23:51:51,853 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-11 23:51:51,854 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-11 23:51:51,856 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-11 23:51:51,857 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-11 23:51:51,858 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-11 23:51:51,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-11 23:51:51,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-11 23:51:51,863 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-11 23:51:51,865 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-11 23:51:51,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-11 23:51:51,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-11 23:51:51,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-11 23:51:51,873 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-11 23:51:51,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-11 23:51:51,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-11 23:51:51,875 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-11 23:51:51,877 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-11 23:51:51,878 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-11 23:51:51,879 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-11 23:51:51,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-11 23:51:51,885 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-11 23:51:51,886 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-11 23:51:51,888 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-11 23:51:51,889 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-11 23:51:51,889 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-11 23:51:51,890 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-11 23:51:51,891 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-11 23:51:51,892 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-11 23:51:51,892 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-11 23:51:51,894 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-SemanticLbe.epf [2020-11-11 23:51:51,950 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-11 23:51:51,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-11 23:51:51,953 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-11 23:51:51,953 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-11 23:51:51,954 INFO L138 SettingsManager]: * Use SBE=true [2020-11-11 23:51:51,955 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-11 23:51:51,955 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-11 23:51:51,955 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-11 23:51:51,956 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-11 23:51:51,956 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-11 23:51:51,957 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-11 23:51:51,957 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-11 23:51:51,957 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-11 23:51:51,958 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-11 23:51:51,958 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-11 23:51:51,958 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-11 23:51:51,958 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-11 23:51:51,958 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-11 23:51:51,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-11 23:51:51,959 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-11 23:51:51,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-11 23:51:51,959 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-11 23:51:51,959 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-11 23:51:51,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-11 23:51:51,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-11 23:51:51,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-11 23:51:51,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-11 23:51:51,960 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-11 23:51:51,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-11 23:51:52,367 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-11 23:51:52,394 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-11 23:51:52,398 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-11 23:51:52,399 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-11 23:51:52,400 INFO L275 PluginConnector]: CDTParser initialized [2020-11-11 23:51:52,401 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-11-11 23:51:52,489 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627954c2b/934acc5fc22e41338fc5ec0430ffea1c/FLAG24210f4a5 [2020-11-11 23:51:53,250 INFO L306 CDTParser]: Found 1 translation units. [2020-11-11 23:51:53,254 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe013_tso.oepc.i [2020-11-11 23:51:53,271 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627954c2b/934acc5fc22e41338fc5ec0430ffea1c/FLAG24210f4a5 [2020-11-11 23:51:53,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/627954c2b/934acc5fc22e41338fc5ec0430ffea1c [2020-11-11 23:51:53,565 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-11 23:51:53,572 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-11-11 23:51:53,573 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-11 23:51:53,574 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-11 23:51:53,577 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-11 23:51:53,578 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:53" (1/1) ... [2020-11-11 23:51:53,581 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@171d3343 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:53, skipping insertion in model container [2020-11-11 23:51:53,582 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.11 11:51:53" (1/1) ... [2020-11-11 23:51:53,590 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-11 23:51:53,630 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-11 23:51:54,044 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 23:51:54,055 INFO L203 MainTranslator]: Completed pre-run [2020-11-11 23:51:54,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-11 23:51:54,246 INFO L208 MainTranslator]: Completed translation [2020-11-11 23:51:54,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54 WrapperNode [2020-11-11 23:51:54,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-11 23:51:54,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-11 23:51:54,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-11 23:51:54,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-11 23:51:54,256 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,273 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,296 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-11 23:51:54,297 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-11 23:51:54,297 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-11 23:51:54,297 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-11 23:51:54,306 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,306 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,331 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,343 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,345 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (1/1) ... [2020-11-11 23:51:54,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-11 23:51:54,375 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-11 23:51:54,375 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-11 23:51:54,376 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-11 23:51:54,376 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (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 [2020-11-11 23:51:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-11 23:51:54,442 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-11-11 23:51:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-11 23:51:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-11 23:51:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-11-11 23:51:54,443 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-11-11 23:51:54,443 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-11-11 23:51:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-11-11 23:51:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-11-11 23:51:54,444 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-11-11 23:51:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-11 23:51:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-11-11 23:51:54,444 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-11 23:51:54,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-11 23:51:54,446 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-11-11 23:51:55,006 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-11 23:51:55,006 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-11-11 23:51:55,010 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:55 BoogieIcfgContainer [2020-11-11 23:51:55,010 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-11 23:51:55,013 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-11 23:51:55,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-11 23:51:55,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-11 23:51:55,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.11 11:51:53" (1/3) ... [2020-11-11 23:51:55,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba3916a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:51:55, skipping insertion in model container [2020-11-11 23:51:55,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.11 11:51:54" (2/3) ... [2020-11-11 23:51:55,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ba3916a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.11 11:51:55, skipping insertion in model container [2020-11-11 23:51:55,021 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.11 11:51:55" (3/3) ... [2020-11-11 23:51:55,023 INFO L111 eAbstractionObserver]: Analyzing ICFG safe013_tso.oepc.i [2020-11-11 23:51:55,037 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-11-11 23:51:55,037 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-11 23:51:55,041 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-11 23:51:55,043 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-11-11 23:51:55,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,084 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,084 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,084 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,085 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,085 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,086 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,087 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,087 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,088 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,088 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,088 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,089 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,091 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,092 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,092 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,093 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,093 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,094 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,101 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,102 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,102 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,110 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,110 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,110 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,112 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,113 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,113 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-11-11 23:51:55,115 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2020-11-11 23:51:55,127 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-11 23:51:55,150 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-11 23:51:55,150 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-11 23:51:55,150 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-11 23:51:55,150 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-11 23:51:55,150 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-11 23:51:55,150 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-11 23:51:55,150 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-11 23:51:55,151 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-11 23:51:55,162 INFO L120 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-11-11 23:51:55,164 INFO L135 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-11 23:51:55,168 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 86 places, 79 transitions, 173 flow [2020-11-11 23:51:55,170 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 86 places, 79 transitions, 173 flow [2020-11-11 23:51:55,214 INFO L129 PetriNetUnfolder]: 3/76 cut-off events. [2020-11-11 23:51:55,214 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-11-11 23:51:55,219 INFO L84 FinitePrefix]: Finished finitePrefix Result has 86 conditions, 76 events. 3/76 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 62 event pairs, 0 based on Foata normal form. 0/72 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-11-11 23:51:55,222 INFO L116 LiptonReduction]: Number of co-enabled transitions 1440 [2020-11-11 23:51:58,869 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-11-11 23:51:59,142 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2020-11-11 23:51:59,412 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-11 23:51:59,628 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 74 [2020-11-11 23:51:59,733 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 72 [2020-11-11 23:51:59,809 INFO L131 LiptonReduction]: Checked pairs total: 3042 [2020-11-11 23:51:59,809 INFO L133 LiptonReduction]: Total number of compositions: 75 [2020-11-11 23:51:59,817 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-11-11 23:51:59,867 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 298 states, 296 states have (on average 3.135135135135135) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:51:59,872 INFO L276 IsEmpty]: Start isEmpty. Operand has 298 states, 296 states have (on average 3.135135135135135) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:51:59,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-11 23:51:59,882 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:51:59,883 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:51:59,883 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:51:59,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:51:59,895 INFO L82 PathProgramCache]: Analyzing trace with hash 788000652, now seen corresponding path program 1 times [2020-11-11 23:51:59,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:51:59,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264633527] [2020-11-11 23:51:59,908 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:00,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:00,252 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:00,253 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264633527] [2020-11-11 23:52:00,254 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:00,254 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-11 23:52:00,255 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1569065449] [2020-11-11 23:52:00,261 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 23:52:00,262 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:00,281 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 23:52:00,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 23:52:00,285 INFO L87 Difference]: Start difference. First operand has 298 states, 296 states have (on average 3.135135135135135) internal successors, (928), 297 states have internal predecessors, (928), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:00,351 INFO L93 Difference]: Finished difference Result 290 states and 834 transitions. [2020-11-11 23:52:00,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 23:52:00,356 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2020-11-11 23:52:00,356 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:00,380 INFO L225 Difference]: With dead ends: 290 [2020-11-11 23:52:00,383 INFO L226 Difference]: Without dead ends: 226 [2020-11-11 23:52:00,384 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 23:52:00,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2020-11-11 23:52:00,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 226. [2020-11-11 23:52:00,464 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 226 states, 225 states have (on average 2.7822222222222224) internal successors, (626), 225 states have internal predecessors, (626), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 226 states to 226 states and 626 transitions. [2020-11-11 23:52:00,468 INFO L78 Accepts]: Start accepts. Automaton has 226 states and 626 transitions. Word has length 8 [2020-11-11 23:52:00,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:00,470 INFO L481 AbstractCegarLoop]: Abstraction has 226 states and 626 transitions. [2020-11-11 23:52:00,470 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 2 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,470 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states and 626 transitions. [2020-11-11 23:52:00,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-11-11 23:52:00,471 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:00,472 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:00,472 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-11 23:52:00,472 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:00,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:00,473 INFO L82 PathProgramCache]: Analyzing trace with hash -1148605507, now seen corresponding path program 1 times [2020-11-11 23:52:00,473 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:00,473 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255974735] [2020-11-11 23:52:00,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:00,520 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:00,521 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255974735] [2020-11-11 23:52:00,521 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:00,521 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-11 23:52:00,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [501929828] [2020-11-11 23:52:00,523 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 23:52:00,523 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:00,524 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 23:52:00,524 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 23:52:00,524 INFO L87 Difference]: Start difference. First operand 226 states and 626 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:00,536 INFO L93 Difference]: Finished difference Result 214 states and 585 transitions. [2020-11-11 23:52:00,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 23:52:00,536 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2020-11-11 23:52:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:00,539 INFO L225 Difference]: With dead ends: 214 [2020-11-11 23:52:00,539 INFO L226 Difference]: Without dead ends: 214 [2020-11-11 23:52:00,540 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 23:52:00,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2020-11-11 23:52:00,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 214. [2020-11-11 23:52:00,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 214 states, 213 states have (on average 2.7464788732394365) internal successors, (585), 213 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,558 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 214 states to 214 states and 585 transitions. [2020-11-11 23:52:00,558 INFO L78 Accepts]: Start accepts. Automaton has 214 states and 585 transitions. Word has length 9 [2020-11-11 23:52:00,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:00,558 INFO L481 AbstractCegarLoop]: Abstraction has 214 states and 585 transitions. [2020-11-11 23:52:00,559 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 2 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,559 INFO L276 IsEmpty]: Start isEmpty. Operand 214 states and 585 transitions. [2020-11-11 23:52:00,560 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-11-11 23:52:00,560 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:00,560 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:00,561 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-11 23:52:00,561 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:00,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:00,562 INFO L82 PathProgramCache]: Analyzing trace with hash -1247061420, now seen corresponding path program 1 times [2020-11-11 23:52:00,562 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:00,562 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [455203465] [2020-11-11 23:52:00,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:00,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:00,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:00,635 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [455203465] [2020-11-11 23:52:00,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:00,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 23:52:00,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [175585179] [2020-11-11 23:52:00,636 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 23:52:00,637 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:00,638 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 23:52:00,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 23:52:00,639 INFO L87 Difference]: Start difference. First operand 214 states and 585 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:00,662 INFO L93 Difference]: Finished difference Result 240 states and 627 transitions. [2020-11-11 23:52:00,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-11 23:52:00,662 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2020-11-11 23:52:00,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:00,664 INFO L225 Difference]: With dead ends: 240 [2020-11-11 23:52:00,664 INFO L226 Difference]: Without dead ends: 144 [2020-11-11 23:52:00,664 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:00,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2020-11-11 23:52:00,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2020-11-11 23:52:00,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 143 states have (on average 2.4825174825174825) internal successors, (355), 143 states have internal predecessors, (355), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 355 transitions. [2020-11-11 23:52:00,675 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 355 transitions. Word has length 10 [2020-11-11 23:52:00,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:00,676 INFO L481 AbstractCegarLoop]: Abstraction has 144 states and 355 transitions. [2020-11-11 23:52:00,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 3 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,676 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 355 transitions. [2020-11-11 23:52:00,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-11-11 23:52:00,677 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:00,677 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:00,678 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-11 23:52:00,678 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:00,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:00,679 INFO L82 PathProgramCache]: Analyzing trace with hash 467749583, now seen corresponding path program 1 times [2020-11-11 23:52:00,679 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:00,679 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [970286018] [2020-11-11 23:52:00,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:00,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:00,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:00,810 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [970286018] [2020-11-11 23:52:00,810 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:00,811 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 23:52:00,811 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [271029099] [2020-11-11 23:52:00,811 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 23:52:00,811 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:00,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 23:52:00,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 23:52:00,813 INFO L87 Difference]: Start difference. First operand 144 states and 355 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,863 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:00,863 INFO L93 Difference]: Finished difference Result 164 states and 374 transitions. [2020-11-11 23:52:00,864 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-11 23:52:00,864 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2020-11-11 23:52:00,864 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:00,865 INFO L225 Difference]: With dead ends: 164 [2020-11-11 23:52:00,865 INFO L226 Difference]: Without dead ends: 124 [2020-11-11 23:52:00,866 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:00,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-11-11 23:52:00,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-11-11 23:52:00,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 123 states have (on average 2.2845528455284554) internal successors, (281), 123 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 281 transitions. [2020-11-11 23:52:00,875 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 281 transitions. Word has length 12 [2020-11-11 23:52:00,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:00,875 INFO L481 AbstractCegarLoop]: Abstraction has 124 states and 281 transitions. [2020-11-11 23:52:00,876 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 3 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:00,876 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 281 transitions. [2020-11-11 23:52:00,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-11-11 23:52:00,877 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:00,877 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:00,877 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-11 23:52:00,878 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:00,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:00,878 INFO L82 PathProgramCache]: Analyzing trace with hash 1656328321, now seen corresponding path program 1 times [2020-11-11 23:52:00,879 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:00,879 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1633645516] [2020-11-11 23:52:00,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:00,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:00,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:00,957 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1633645516] [2020-11-11 23:52:00,957 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:00,958 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 23:52:00,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [56991926] [2020-11-11 23:52:00,961 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-11 23:52:00,962 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:00,962 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-11 23:52:00,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-11-11 23:52:00,963 INFO L87 Difference]: Start difference. First operand 124 states and 281 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:01,025 INFO L93 Difference]: Finished difference Result 122 states and 258 transitions. [2020-11-11 23:52:01,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-11 23:52:01,027 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2020-11-11 23:52:01,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:01,028 INFO L225 Difference]: With dead ends: 122 [2020-11-11 23:52:01,028 INFO L226 Difference]: Without dead ends: 97 [2020-11-11 23:52:01,028 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-11 23:52:01,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2020-11-11 23:52:01,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 97. [2020-11-11 23:52:01,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 96 states have (on average 2.1041666666666665) internal successors, (202), 96 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,040 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 202 transitions. [2020-11-11 23:52:01,041 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 202 transitions. Word has length 13 [2020-11-11 23:52:01,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:01,044 INFO L481 AbstractCegarLoop]: Abstraction has 97 states and 202 transitions. [2020-11-11 23:52:01,044 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,044 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 202 transitions. [2020-11-11 23:52:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-11-11 23:52:01,046 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:01,046 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:01,048 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-11 23:52:01,048 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:01,049 INFO L82 PathProgramCache]: Analyzing trace with hash 1259817605, now seen corresponding path program 1 times [2020-11-11 23:52:01,049 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:01,049 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229210967] [2020-11-11 23:52:01,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:01,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:01,096 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:01,097 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229210967] [2020-11-11 23:52:01,098 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:01,098 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-11 23:52:01,098 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570644601] [2020-11-11 23:52:01,099 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-11 23:52:01,099 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:01,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-11 23:52:01,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 23:52:01,100 INFO L87 Difference]: Start difference. First operand 97 states and 202 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:01,108 INFO L93 Difference]: Finished difference Result 115 states and 230 transitions. [2020-11-11 23:52:01,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-11 23:52:01,109 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2020-11-11 23:52:01,109 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:01,110 INFO L225 Difference]: With dead ends: 115 [2020-11-11 23:52:01,110 INFO L226 Difference]: Without dead ends: 98 [2020-11-11 23:52:01,110 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-11 23:52:01,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2020-11-11 23:52:01,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 96. [2020-11-11 23:52:01,114 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 95 states have (on average 2.031578947368421) internal successors, (193), 95 states have internal predecessors, (193), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 193 transitions. [2020-11-11 23:52:01,115 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 193 transitions. Word has length 14 [2020-11-11 23:52:01,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:01,115 INFO L481 AbstractCegarLoop]: Abstraction has 96 states and 193 transitions. [2020-11-11 23:52:01,115 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,116 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 193 transitions. [2020-11-11 23:52:01,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-11-11 23:52:01,117 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:01,117 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:01,117 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-11 23:52:01,117 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:01,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:01,118 INFO L82 PathProgramCache]: Analyzing trace with hash 1144625413, now seen corresponding path program 1 times [2020-11-11 23:52:01,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:01,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [67739253] [2020-11-11 23:52:01,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:01,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:01,199 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:01,199 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [67739253] [2020-11-11 23:52:01,200 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:01,200 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-11 23:52:01,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796443476] [2020-11-11 23:52:01,202 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-11 23:52:01,203 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:01,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-11 23:52:01,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-11-11 23:52:01,204 INFO L87 Difference]: Start difference. First operand 96 states and 193 transitions. Second operand has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:01,258 INFO L93 Difference]: Finished difference Result 92 states and 183 transitions. [2020-11-11 23:52:01,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-11-11 23:52:01,259 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2020-11-11 23:52:01,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:01,260 INFO L225 Difference]: With dead ends: 92 [2020-11-11 23:52:01,260 INFO L226 Difference]: Without dead ends: 36 [2020-11-11 23:52:01,261 INFO L749 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-11-11 23:52:01,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2020-11-11 23:52:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2020-11-11 23:52:01,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 36 states, 35 states have (on average 1.6) internal successors, (56), 35 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,263 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 56 transitions. [2020-11-11 23:52:01,264 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 56 transitions. Word has length 15 [2020-11-11 23:52:01,264 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:01,264 INFO L481 AbstractCegarLoop]: Abstraction has 36 states and 56 transitions. [2020-11-11 23:52:01,264 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 5 states have (on average 3.0) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,264 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 56 transitions. [2020-11-11 23:52:01,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-11-11 23:52:01,265 INFO L486 BasicCegarLoop]: Found error trace [2020-11-11 23:52:01,265 INFO L494 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-11 23:52:01,265 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-11-11 23:52:01,266 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-11 23:52:01,267 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-11 23:52:01,267 INFO L82 PathProgramCache]: Analyzing trace with hash 649896144, now seen corresponding path program 1 times [2020-11-11 23:52:01,267 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-11 23:52:01,268 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229487428] [2020-11-11 23:52:01,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-11 23:52:01,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-11 23:52:01,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-11 23:52:01,335 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229487428] [2020-11-11 23:52:01,335 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-11 23:52:01,336 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-11 23:52:01,336 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638963331] [2020-11-11 23:52:01,336 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-11 23:52:01,336 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-11 23:52:01,337 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-11 23:52:01,340 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-11 23:52:01,340 INFO L87 Difference]: Start difference. First operand 36 states and 56 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,359 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-11 23:52:01,360 INFO L93 Difference]: Finished difference Result 35 states and 55 transitions. [2020-11-11 23:52:01,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-11 23:52:01,360 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2020-11-11 23:52:01,360 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-11 23:52:01,361 INFO L225 Difference]: With dead ends: 35 [2020-11-11 23:52:01,361 INFO L226 Difference]: Without dead ends: 0 [2020-11-11 23:52:01,361 INFO L749 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 [2020-11-11 23:52:01,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-11 23:52:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-11 23:52:01,362 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-11 23:52:01,362 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2020-11-11 23:52:01,362 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-11 23:52:01,362 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-11 23:52:01,362 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-11-11 23:52:01,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-11 23:52:01,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-11 23:52:01,363 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-11-11 23:52:01,367 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.11 11:52:01 BasicIcfg [2020-11-11 23:52:01,367 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-11 23:52:01,373 INFO L168 Benchmark]: Toolchain (without parser) took 7801.67 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 277.2 MB in the beginning and 241.9 MB in the end (delta: 35.3 MB). Peak memory consumption was 98.9 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:01,375 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory was 272.4 MB in the beginning and 272.3 MB in the end (delta: 78.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 23:52:01,376 INFO L168 Benchmark]: CACSL2BoogieTranslator took 673.31 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 245.7 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:01,376 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.35 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 243.8 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2020-11-11 23:52:01,377 INFO L168 Benchmark]: Boogie Preprocessor took 66.26 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 285.1 MB in the end (delta: -41.4 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:01,380 INFO L168 Benchmark]: RCFGBuilder took 634.69 ms. Allocated memory is still 302.0 MB. Free memory was 285.1 MB in the beginning and 260.9 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:01,381 INFO L168 Benchmark]: TraceAbstraction took 6353.72 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 260.9 MB in the beginning and 241.9 MB in the end (delta: 19.0 MB). Peak memory consumption was 81.9 MB. Max. memory is 16.0 GB. [2020-11-11 23:52:01,388 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory was 272.4 MB in the beginning and 272.3 MB in the end (delta: 78.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 673.31 ms. Allocated memory is still 302.0 MB. Free memory was 276.7 MB in the beginning and 245.7 MB in the end (delta: 30.9 MB). Peak memory consumption was 29.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 48.35 ms. Allocated memory is still 302.0 MB. Free memory was 245.7 MB in the beginning and 243.8 MB in the end (delta: 2.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 66.26 ms. Allocated memory is still 302.0 MB. Free memory was 243.8 MB in the beginning and 285.1 MB in the end (delta: -41.4 MB). Peak memory consumption was 6.5 MB. Max. memory is 16.0 GB. * RCFGBuilder took 634.69 ms. Allocated memory is still 302.0 MB. Free memory was 285.1 MB in the beginning and 260.9 MB in the end (delta: 24.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 16.0 GB. * TraceAbstraction took 6353.72 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 260.9 MB in the beginning and 241.9 MB in the end (delta: 19.0 MB). Peak memory consumption was 81.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1052 VarBasedMoverChecksPositive, 52 VarBasedMoverChecksNegative, 15 SemBasedMoverChecksPositive, 37 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.3s, 83 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 4.6s, 86 PlacesBefore, 31 PlacesAfterwards, 79 TransitionsBefore, 22 TransitionsAfterwards, 1440 CoEnabledTransitionPairs, 7 FixpointIterations, 18 TrivialSequentialCompositions, 44 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 11 ConcurrentYvCompositions, 2 ChoiceCompositions, 75 TotalNumberOfCompositions, 3042 MoverChecksTotal - PositiveResult [Line: 17]: 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 4 procedures, 77 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6.2s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 145 SDtfs, 131 SDslu, 173 SDs, 0 SdLazy, 93 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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: 0.1s AutomataMinimizationTime, 8 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 90 ConstructedInterpolants, 0 QuantifiedInterpolants, 2968 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...