/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/safe018_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-18 18:43:39,313 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-18 18:43:39,317 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-18 18:43:39,334 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-18 18:43:39,334 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-18 18:43:39,336 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-18 18:43:39,338 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-18 18:43:39,348 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-18 18:43:39,351 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-18 18:43:39,354 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-18 18:43:39,356 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-18 18:43:39,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-18 18:43:39,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-18 18:43:39,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-18 18:43:39,362 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-18 18:43:39,364 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-18 18:43:39,366 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-18 18:43:39,366 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-18 18:43:39,368 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-18 18:43:39,373 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-18 18:43:39,377 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-18 18:43:39,381 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-18 18:43:39,382 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-18 18:43:39,382 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-18 18:43:39,385 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-18 18:43:39,386 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-18 18:43:39,386 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-18 18:43:39,387 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-18 18:43:39,388 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-18 18:43:39,389 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-18 18:43:39,390 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-18 18:43:39,390 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-18 18:43:39,391 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-18 18:43:39,392 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-18 18:43:39,393 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-18 18:43:39,394 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-18 18:43:39,394 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-18 18:43:39,394 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-18 18:43:39,395 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-18 18:43:39,395 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-18 18:43:39,397 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-18 18:43:39,397 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 [2019-12-18 18:43:39,435 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-18 18:43:39,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-18 18:43:39,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-18 18:43:39,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-18 18:43:39,441 INFO L138 SettingsManager]: * Use SBE=true [2019-12-18 18:43:39,442 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-18 18:43:39,442 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-18 18:43:39,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-18 18:43:39,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-18 18:43:39,442 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-18 18:43:39,442 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-18 18:43:39,443 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-18 18:43:39,443 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-18 18:43:39,443 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-18 18:43:39,443 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-18 18:43:39,443 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-18 18:43:39,444 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-18 18:43:39,444 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-18 18:43:39,444 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-18 18:43:39,444 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-18 18:43:39,444 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-18 18:43:39,447 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-18 18:43:39,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-18 18:43:39,448 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-18 18:43:39,448 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-18 18:43:39,448 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-18 18:43:39,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-18 18:43:39,448 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-18 18:43:39,449 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-18 18:43:39,700 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-18 18:43:39,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-18 18:43:39,715 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-18 18:43:39,716 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-18 18:43:39,716 INFO L275 PluginConnector]: CDTParser initialized [2019-12-18 18:43:39,717 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-18 18:43:39,797 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a756af4e/e8b8196a008a4cdc9a060d6ca1e51915/FLAGf47805d42 [2019-12-18 18:43:40,330 INFO L306 CDTParser]: Found 1 translation units. [2019-12-18 18:43:40,332 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe018_tso.oepc.i [2019-12-18 18:43:40,353 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a756af4e/e8b8196a008a4cdc9a060d6ca1e51915/FLAGf47805d42 [2019-12-18 18:43:40,688 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0a756af4e/e8b8196a008a4cdc9a060d6ca1e51915 [2019-12-18 18:43:40,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-18 18:43:40,698 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-18 18:43:40,700 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-18 18:43:40,700 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-18 18:43:40,704 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-18 18:43:40,705 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:43:40" (1/1) ... [2019-12-18 18:43:40,708 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d65c15b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:40, skipping insertion in model container [2019-12-18 18:43:40,708 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 06:43:40" (1/1) ... [2019-12-18 18:43:40,716 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-18 18:43:40,763 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-18 18:43:41,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:43:41,268 INFO L203 MainTranslator]: Completed pre-run [2019-12-18 18:43:41,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-18 18:43:41,402 INFO L208 MainTranslator]: Completed translation [2019-12-18 18:43:41,402 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41 WrapperNode [2019-12-18 18:43:41,403 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-18 18:43:41,404 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-18 18:43:41,404 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-18 18:43:41,404 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-18 18:43:41,411 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,450 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-18 18:43:41,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-18 18:43:41,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-18 18:43:41,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-18 18:43:41,458 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,459 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,461 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,462 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,468 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,470 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,472 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (1/1) ... [2019-12-18 18:43:41,475 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-18 18:43:41,476 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-18 18:43:41,476 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-18 18:43:41,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-18 18:43:41,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (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 [2019-12-18 18:43:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-18 18:43:41,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-18 18:43:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-18 18:43:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-18 18:43:41,543 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-18 18:43:41,543 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-18 18:43:41,544 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-18 18:43:41,544 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-18 18:43:41,545 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-18 18:43:41,545 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-18 18:43:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-18 18:43:41,546 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-18 18:43:41,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-18 18:43:41,548 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-18 18:43:41,922 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-18 18:43:41,922 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-18 18:43:41,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:43:41 BoogieIcfgContainer [2019-12-18 18:43:41,923 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-18 18:43:41,925 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-18 18:43:41,925 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-18 18:43:41,927 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-18 18:43:41,928 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 06:43:40" (1/3) ... [2019-12-18 18:43:41,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e687dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:43:41, skipping insertion in model container [2019-12-18 18:43:41,929 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 06:43:41" (2/3) ... [2019-12-18 18:43:41,929 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e687dc8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 06:43:41, skipping insertion in model container [2019-12-18 18:43:41,930 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 06:43:41" (3/3) ... [2019-12-18 18:43:41,931 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_tso.oepc.i [2019-12-18 18:43:41,941 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-18 18:43:41,941 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-18 18:43:41,948 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-18 18:43:41,949 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-18 18:43:41,986 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,986 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,987 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,987 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,987 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,988 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,988 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,988 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,989 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,989 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,989 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,995 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,996 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,996 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:41,996 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,001 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,002 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,002 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,003 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,006 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,007 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,007 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,007 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-18 18:43:42,028 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-18 18:43:42,045 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-18 18:43:42,045 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-18 18:43:42,045 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-18 18:43:42,045 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-18 18:43:42,045 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-18 18:43:42,046 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-18 18:43:42,046 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-18 18:43:42,046 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-18 18:43:42,060 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-18 18:43:42,062 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:43:42,103 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:43:42,104 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:43:42,111 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:43:42,115 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-18 18:43:42,132 INFO L126 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-18 18:43:42,132 INFO L127 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-18 18:43:42,133 INFO L76 FinitePrefix]: Finished finitePrefix Result has 61 conditions, 51 events. 1/51 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 9/58 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-18 18:43:42,135 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-18 18:43:42,137 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-18 18:43:43,547 WARN L192 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2019-12-18 18:43:43,704 INFO L206 etLargeBlockEncoding]: Checked pairs total: 482 [2019-12-18 18:43:43,705 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-18 18:43:43,708 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-18 18:43:43,718 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-18 18:43:43,720 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-18 18:43:43,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-18 18:43:43,726 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:43:43,727 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:43:43,727 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:43:43,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:43:43,732 INFO L82 PathProgramCache]: Analyzing trace with hash -1824698528, now seen corresponding path program 1 times [2019-12-18 18:43:43,739 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:43:43,739 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1435358675] [2019-12-18 18:43:43,739 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:43:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:43:43,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:43:43,967 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1435358675] [2019-12-18 18:43:43,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:43:43,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-18 18:43:43,969 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312036927] [2019-12-18 18:43:43,975 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-18 18:43:43,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:43:43,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-18 18:43:43,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-18 18:43:43,992 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-18 18:43:44,017 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:43:44,017 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-18 18:43:44,018 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-18 18:43:44,019 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-18 18:43:44,019 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:43:44,031 INFO L225 Difference]: With dead ends: 42 [2019-12-18 18:43:44,032 INFO L226 Difference]: Without dead ends: 34 [2019-12-18 18:43:44,033 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 [2019-12-18 18:43:44,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-18 18:43:44,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-18 18:43:44,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-18 18:43:44,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-18 18:43:44,074 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-18 18:43:44,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:43:44,075 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-18 18:43:44,076 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-18 18:43:44,076 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-18 18:43:44,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-18 18:43:44,077 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:43:44,077 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:43:44,077 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:43:44,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:43:44,078 INFO L82 PathProgramCache]: Analyzing trace with hash 1592223242, now seen corresponding path program 1 times [2019-12-18 18:43:44,078 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:43:44,078 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [715522967] [2019-12-18 18:43:44,078 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:43:44,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:43:44,177 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:43:44,177 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [715522967] [2019-12-18 18:43:44,178 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:43:44,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:43:44,179 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1330627649] [2019-12-18 18:43:44,181 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:43:44,181 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:43:44,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:43:44,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:43:44,182 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-18 18:43:44,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:43:44,205 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-18 18:43:44,206 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:43:44,206 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-18 18:43:44,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:43:44,207 INFO L225 Difference]: With dead ends: 36 [2019-12-18 18:43:44,207 INFO L226 Difference]: Without dead ends: 22 [2019-12-18 18:43:44,208 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 [2019-12-18 18:43:44,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2019-12-18 18:43:44,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2019-12-18 18:43:44,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2019-12-18 18:43:44,212 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 33 transitions. [2019-12-18 18:43:44,212 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 33 transitions. Word has length 9 [2019-12-18 18:43:44,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:43:44,213 INFO L462 AbstractCegarLoop]: Abstraction has 22 states and 33 transitions. [2019-12-18 18:43:44,213 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:43:44,213 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 33 transitions. [2019-12-18 18:43:44,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-18 18:43:44,214 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:43:44,214 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:43:44,214 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:43:44,215 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:43:44,215 INFO L82 PathProgramCache]: Analyzing trace with hash -1186765067, now seen corresponding path program 1 times [2019-12-18 18:43:44,215 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:43:44,215 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [891310219] [2019-12-18 18:43:44,215 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:43:44,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:43:44,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:43:44,299 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [891310219] [2019-12-18 18:43:44,299 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:43:44,299 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-18 18:43:44,300 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1861857881] [2019-12-18 18:43:44,300 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:43:44,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:43:44,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:43:44,301 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:43:44,301 INFO L87 Difference]: Start difference. First operand 22 states and 33 transitions. Second operand 4 states. [2019-12-18 18:43:44,339 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:43:44,339 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-18 18:43:44,339 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:43:44,339 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-18 18:43:44,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:43:44,340 INFO L225 Difference]: With dead ends: 25 [2019-12-18 18:43:44,340 INFO L226 Difference]: Without dead ends: 17 [2019-12-18 18:43:44,340 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 [2019-12-18 18:43:44,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-18 18:43:44,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-18 18:43:44,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-18 18:43:44,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-18 18:43:44,344 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-18 18:43:44,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:43:44,344 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-18 18:43:44,344 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:43:44,344 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-18 18:43:44,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-18 18:43:44,345 INFO L403 BasicCegarLoop]: Found error trace [2019-12-18 18:43:44,345 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-18 18:43:44,345 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-18 18:43:44,346 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-18 18:43:44,346 INFO L82 PathProgramCache]: Analyzing trace with hash -1690191566, now seen corresponding path program 1 times [2019-12-18 18:43:44,346 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-18 18:43:44,346 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1499962969] [2019-12-18 18:43:44,347 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-18 18:43:44,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-18 18:43:44,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-18 18:43:44,424 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1499962969] [2019-12-18 18:43:44,424 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-18 18:43:44,424 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-18 18:43:44,425 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460720583] [2019-12-18 18:43:44,426 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-18 18:43:44,426 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-18 18:43:44,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-18 18:43:44,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-18 18:43:44,427 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-18 18:43:44,443 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-18 18:43:44,444 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-18 18:43:44,444 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-18 18:43:44,444 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-18 18:43:44,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-18 18:43:44,444 INFO L225 Difference]: With dead ends: 16 [2019-12-18 18:43:44,444 INFO L226 Difference]: Without dead ends: 0 [2019-12-18 18:43:44,445 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 [2019-12-18 18:43:44,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-18 18:43:44,445 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-18 18:43:44,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-18 18:43:44,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-18 18:43:44,445 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-18 18:43:44,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-18 18:43:44,446 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-18 18:43:44,446 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-18 18:43:44,446 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-18 18:43:44,446 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-18 18:43:44,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.12 06:43:44 BasicIcfg [2019-12-18 18:43:44,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-18 18:43:44,453 INFO L168 Benchmark]: Toolchain (without parser) took 3754.61 ms. Allocated memory was 147.3 MB in the beginning and 243.8 MB in the end (delta: 96.5 MB). Free memory was 102.7 MB in the beginning and 129.5 MB in the end (delta: -26.8 MB). Peak memory consumption was 69.6 MB. Max. memory is 7.1 GB. [2019-12-18 18:43:44,454 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-18 18:43:44,455 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.38 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 161.5 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-18 18:43:44,457 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.79 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 18:43:44,464 INFO L168 Benchmark]: Boogie Preprocessor took 25.01 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-18 18:43:44,465 INFO L168 Benchmark]: RCFGBuilder took 447.53 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 137.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. [2019-12-18 18:43:44,466 INFO L168 Benchmark]: TraceAbstraction took 2526.14 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 137.1 MB in the beginning and 129.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. [2019-12-18 18:43:44,481 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 147.3 MB. Free memory was 122.4 MB in the beginning and 122.2 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 703.38 ms. Allocated memory was 147.3 MB in the beginning and 204.5 MB in the end (delta: 57.1 MB). Free memory was 102.5 MB in the beginning and 161.5 MB in the end (delta: -59.0 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.79 ms. Allocated memory is still 204.5 MB. Free memory was 161.5 MB in the beginning and 159.6 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.01 ms. Allocated memory is still 204.5 MB. Free memory was 159.6 MB in the beginning and 157.7 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 447.53 ms. Allocated memory is still 204.5 MB. Free memory was 157.7 MB in the beginning and 137.8 MB in the end (delta: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2526.14 ms. Allocated memory was 204.5 MB in the beginning and 243.8 MB in the end (delta: 39.3 MB). Free memory was 137.1 MB in the beginning and 129.5 MB in the end (delta: 7.6 MB). Peak memory consumption was 46.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 63 ProgramPointsBefore, 21 ProgramPointsAfterwards, 54 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 1 ChoiceCompositions, 243 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 17 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 482 CheckedPairsTotal, 45 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 42 SDtfs, 25 SDslu, 34 SDs, 0 SdLazy, 22 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 38 NumberOfCodeBlocks, 38 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 802 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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...