/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 03:43:24,911 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 03:43:24,914 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 03:43:24,926 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 03:43:24,926 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 03:43:24,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 03:43:24,929 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 03:43:24,930 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 03:43:24,932 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 03:43:24,933 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 03:43:24,934 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 03:43:24,935 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 03:43:24,936 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 03:43:24,937 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 03:43:24,937 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 03:43:24,939 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 03:43:24,939 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 03:43:24,940 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 03:43:24,942 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 03:43:24,944 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 03:43:24,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 03:43:24,946 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 03:43:24,947 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 03:43:24,948 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 03:43:24,950 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 03:43:24,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 03:43:24,951 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 03:43:24,952 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 03:43:24,952 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 03:43:24,953 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 03:43:24,953 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 03:43:24,954 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 03:43:24,955 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 03:43:24,955 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 03:43:24,957 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 03:43:24,957 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 03:43:24,957 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 03:43:24,958 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 03:43:24,958 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 03:43:24,959 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 03:43:24,959 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 03:43:24,960 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 [2019-12-27 03:43:24,974 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 03:43:24,974 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 03:43:24,975 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 03:43:24,976 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 03:43:24,976 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 03:43:24,976 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 03:43:24,976 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 03:43:24,977 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 03:43:24,977 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 03:43:24,977 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 03:43:24,977 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 03:43:24,977 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 03:43:24,978 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 03:43:24,978 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 03:43:24,978 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 03:43:24,978 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 03:43:24,978 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 03:43:24,979 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 03:43:24,979 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 03:43:24,979 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 03:43:24,979 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 03:43:24,979 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:43:24,980 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 03:43:24,980 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 03:43:24,980 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 03:43:24,980 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 03:43:24,980 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 03:43:24,981 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 03:43:24,981 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 03:43:25,286 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 03:43:25,307 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 03:43:25,311 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 03:43:25,313 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 03:43:25,313 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 03:43:25,314 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-27 03:43:25,388 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dff5a19b/8012a8fa9d9243d6a3ceba8b6adac471/FLAG7f07899f1 [2019-12-27 03:43:25,947 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 03:43:25,948 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe015_tso.opt.i [2019-12-27 03:43:25,968 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dff5a19b/8012a8fa9d9243d6a3ceba8b6adac471/FLAG7f07899f1 [2019-12-27 03:43:26,216 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4dff5a19b/8012a8fa9d9243d6a3ceba8b6adac471 [2019-12-27 03:43:26,224 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 03:43:26,226 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 03:43:26,227 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 03:43:26,227 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 03:43:26,230 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 03:43:26,231 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,234 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@614e4f18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26, skipping insertion in model container [2019-12-27 03:43:26,234 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,241 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 03:43:26,285 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 03:43:26,759 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:43:26,771 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 03:43:26,827 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 03:43:26,912 INFO L208 MainTranslator]: Completed translation [2019-12-27 03:43:26,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26 WrapperNode [2019-12-27 03:43:26,912 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 03:43:26,913 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 03:43:26,913 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 03:43:26,913 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 03:43:26,920 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,938 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 03:43:26,959 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 03:43:26,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 03:43:26,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 03:43:26,965 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,966 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,975 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,977 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,979 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... [2019-12-27 03:43:26,983 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 03:43:26,983 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 03:43:26,983 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 03:43:26,984 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 03:43:26,985 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 03:43:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 03:43:27,047 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 03:43:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 03:43:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 03:43:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 03:43:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 03:43:27,048 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 03:43:27,048 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 03:43:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 03:43:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 03:43:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 03:43:27,049 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 03:43:27,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 03:43:27,051 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 03:43:27,443 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 03:43:27,444 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 03:43:27,445 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:43:27 BoogieIcfgContainer [2019-12-27 03:43:27,445 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 03:43:27,446 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 03:43:27,446 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 03:43:27,449 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 03:43:27,449 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 03:43:26" (1/3) ... [2019-12-27 03:43:27,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259c932d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:43:27, skipping insertion in model container [2019-12-27 03:43:27,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 03:43:26" (2/3) ... [2019-12-27 03:43:27,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@259c932d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 03:43:27, skipping insertion in model container [2019-12-27 03:43:27,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 03:43:27" (3/3) ... [2019-12-27 03:43:27,453 INFO L109 eAbstractionObserver]: Analyzing ICFG safe015_tso.opt.i [2019-12-27 03:43:27,462 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 03:43:27,462 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 03:43:27,470 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 03:43:27,471 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 03:43:27,498 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,498 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,499 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,500 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,501 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,501 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,501 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,502 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,502 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,502 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,502 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,503 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,503 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,503 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,504 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,504 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,504 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,504 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,508 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,509 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,509 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,509 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,520 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,520 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,520 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,521 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,525 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,525 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,525 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,526 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 03:43:27,542 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 03:43:27,557 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 03:43:27,558 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 03:43:27,558 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 03:43:27,558 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 03:43:27,558 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 03:43:27,558 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 03:43:27,558 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 03:43:27,559 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 03:43:27,571 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 03:43:27,573 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 03:43:27,621 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 03:43:27,621 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:43:27,630 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:43:27,633 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 03:43:27,653 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 03:43:27,654 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 03:43:27,656 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 03:43:27,661 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 03:43:27,662 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 03:43:29,156 WARN L192 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 03:43:29,371 INFO L206 etLargeBlockEncoding]: Checked pairs total: 504 [2019-12-27 03:43:29,371 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 03:43:29,375 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 03:43:29,392 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 03:43:29,395 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 03:43:29,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 03:43:29,405 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:29,406 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:29,407 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:29,415 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:29,416 INFO L82 PathProgramCache]: Analyzing trace with hash -411766657, now seen corresponding path program 1 times [2019-12-27 03:43:29,427 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:29,428 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834050324] [2019-12-27 03:43:29,428 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:29,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:29,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:29,664 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834050324] [2019-12-27 03:43:29,665 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:29,666 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:43:29,667 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108588504] [2019-12-27 03:43:29,674 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:29,675 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:29,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:29,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:29,693 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 03:43:29,738 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:29,738 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 03:43:29,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:29,741 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 03:43:29,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:29,772 INFO L225 Difference]: With dead ends: 44 [2019-12-27 03:43:29,773 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 03:43:29,777 INFO L631 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 [2019-12-27 03:43:29,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 03:43:29,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 03:43:29,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 03:43:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 03:43:29,826 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 03:43:29,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:29,827 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 03:43:29,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:29,828 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 03:43:29,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 03:43:29,830 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:29,830 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:29,830 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:29,831 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:29,831 INFO L82 PathProgramCache]: Analyzing trace with hash -939565689, now seen corresponding path program 1 times [2019-12-27 03:43:29,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:29,832 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509612239] [2019-12-27 03:43:29,832 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:29,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:29,973 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:29,973 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509612239] [2019-12-27 03:43:29,974 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:29,974 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:43:29,976 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1057507255] [2019-12-27 03:43:29,977 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:29,978 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:29,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:29,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:29,978 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 03:43:30,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:30,009 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-27 03:43:30,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:30,009 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 03:43:30,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:30,010 INFO L225 Difference]: With dead ends: 33 [2019-12-27 03:43:30,011 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 03:43:30,012 INFO L631 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 [2019-12-27 03:43:30,012 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 03:43:30,019 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 03:43:30,020 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 03:43:30,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-27 03:43:30,022 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-27 03:43:30,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:30,022 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-27 03:43:30,022 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:30,023 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-27 03:43:30,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:43:30,023 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:30,024 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:30,026 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:30,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:30,027 INFO L82 PathProgramCache]: Analyzing trace with hash 934712652, now seen corresponding path program 1 times [2019-12-27 03:43:30,027 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:30,028 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2004222280] [2019-12-27 03:43:30,028 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:30,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:30,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:30,111 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2004222280] [2019-12-27 03:43:30,111 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:30,111 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 03:43:30,112 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1042117177] [2019-12-27 03:43:30,112 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:30,112 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:30,113 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:30,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:30,113 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-27 03:43:30,118 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:30,119 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 03:43:30,119 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:30,119 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:43:30,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:30,120 INFO L225 Difference]: With dead ends: 32 [2019-12-27 03:43:30,120 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 03:43:30,121 INFO L631 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 [2019-12-27 03:43:30,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 03:43:30,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 03:43:30,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 03:43:30,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 03:43:30,126 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-27 03:43:30,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:30,126 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 03:43:30,127 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:30,127 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 03:43:30,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 03:43:30,128 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:30,128 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:30,128 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:30,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:30,128 INFO L82 PathProgramCache]: Analyzing trace with hash -679898138, now seen corresponding path program 1 times [2019-12-27 03:43:30,129 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:30,129 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1033035877] [2019-12-27 03:43:30,129 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:30,200 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:30,201 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1033035877] [2019-12-27 03:43:30,201 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:30,201 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:43:30,202 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5792424] [2019-12-27 03:43:30,202 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 03:43:30,202 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:30,203 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 03:43:30,203 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 03:43:30,203 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 03:43:30,221 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:30,221 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 03:43:30,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 03:43:30,222 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 03:43:30,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:30,222 INFO L225 Difference]: With dead ends: 35 [2019-12-27 03:43:30,223 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 03:43:30,223 INFO L631 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 [2019-12-27 03:43:30,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 03:43:30,226 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 03:43:30,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 03:43:30,228 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 03:43:30,229 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 03:43:30,229 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:30,229 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 03:43:30,229 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 03:43:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 03:43:30,230 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:43:30,232 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:30,232 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:30,233 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:30,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:30,233 INFO L82 PathProgramCache]: Analyzing trace with hash 398044178, now seen corresponding path program 1 times [2019-12-27 03:43:30,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:30,234 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537179687] [2019-12-27 03:43:30,234 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:30,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:30,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:30,302 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537179687] [2019-12-27 03:43:30,302 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:30,303 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 03:43:30,303 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677718816] [2019-12-27 03:43:30,304 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:43:30,304 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:30,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:43:30,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:43:30,305 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 03:43:30,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:30,325 INFO L93 Difference]: Finished difference Result 23 states and 32 transitions. [2019-12-27 03:43:30,326 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:43:30,326 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:43:30,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:30,326 INFO L225 Difference]: With dead ends: 23 [2019-12-27 03:43:30,327 INFO L226 Difference]: Without dead ends: 15 [2019-12-27 03:43:30,327 INFO L631 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 [2019-12-27 03:43:30,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-12-27 03:43:30,329 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2019-12-27 03:43:30,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2019-12-27 03:43:30,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2019-12-27 03:43:30,330 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 11 [2019-12-27 03:43:30,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:30,330 INFO L462 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2019-12-27 03:43:30,330 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:43:30,330 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2019-12-27 03:43:30,331 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 03:43:30,331 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 03:43:30,331 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 03:43:30,331 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 03:43:30,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 03:43:30,332 INFO L82 PathProgramCache]: Analyzing trace with hash -462405218, now seen corresponding path program 2 times [2019-12-27 03:43:30,332 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 03:43:30,332 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [669638074] [2019-12-27 03:43:30,332 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 03:43:30,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 03:43:30,376 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 03:43:30,377 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [669638074] [2019-12-27 03:43:30,377 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 03:43:30,377 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 03:43:30,377 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439834721] [2019-12-27 03:43:30,378 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 03:43:30,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 03:43:30,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 03:43:30,382 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 03:43:30,382 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 4 states. [2019-12-27 03:43:30,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 03:43:30,402 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2019-12-27 03:43:30,403 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 03:43:30,403 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 03:43:30,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 03:43:30,404 INFO L225 Difference]: With dead ends: 14 [2019-12-27 03:43:30,404 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 03:43:30,404 INFO L631 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 [2019-12-27 03:43:30,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 03:43:30,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 03:43:30,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 03:43:30,405 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 03:43:30,405 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 03:43:30,405 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 03:43:30,406 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 03:43:30,406 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 03:43:30,406 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 03:43:30,406 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 03:43:30,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 03:43:30 BasicIcfg [2019-12-27 03:43:30,410 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 03:43:30,412 INFO L168 Benchmark]: Toolchain (without parser) took 4186.00 ms. Allocated memory was 145.8 MB in the beginning and 247.5 MB in the end (delta: 101.7 MB). Free memory was 102.8 MB in the beginning and 122.7 MB in the end (delta: -19.9 MB). Peak memory consumption was 81.8 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:30,413 INFO L168 Benchmark]: CDTParser took 0.69 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 03:43:30,414 INFO L168 Benchmark]: CACSL2BoogieTranslator took 685.95 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 159.5 MB in the end (delta: -57.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:30,417 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.23 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 156.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:30,418 INFO L168 Benchmark]: Boogie Preprocessor took 24.44 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:30,419 INFO L168 Benchmark]: RCFGBuilder took 461.97 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 135.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:30,420 INFO L168 Benchmark]: TraceAbstraction took 2963.78 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 134.7 MB in the beginning and 122.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. [2019-12-27 03:43:30,424 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.69 ms. Allocated memory is still 145.8 MB. Free memory was 122.1 MB in the beginning and 121.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 685.95 ms. Allocated memory was 145.8 MB in the beginning and 202.4 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 159.5 MB in the end (delta: -57.1 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 45.23 ms. Allocated memory is still 202.4 MB. Free memory was 159.5 MB in the beginning and 156.9 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.44 ms. Allocated memory is still 202.4 MB. Free memory was 156.9 MB in the beginning and 155.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 461.97 ms. Allocated memory is still 202.4 MB. Free memory was 155.5 MB in the beginning and 135.4 MB in the end (delta: 20.2 MB). Peak memory consumption was 20.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2963.78 ms. Allocated memory was 202.4 MB in the beginning and 247.5 MB in the end (delta: 45.1 MB). Free memory was 134.7 MB in the beginning and 122.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 57.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.8s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 246 VarBasedMoverChecksPositive, 18 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 18 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 504 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 4]: 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, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 14 SDslu, 37 SDs, 0 SdLazy, 30 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 59 NumberOfCodeBlocks, 59 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 53 ConstructedInterpolants, 0 QuantifiedInterpolants, 1219 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...