/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-VariableLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 07:33:46,032 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 07:33:46,035 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 07:33:46,046 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 07:33:46,047 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 07:33:46,048 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 07:33:46,049 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 07:33:46,051 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 07:33:46,053 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 07:33:46,054 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 07:33:46,055 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 07:33:46,056 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 07:33:46,056 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 07:33:46,057 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 07:33:46,058 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 07:33:46,059 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 07:33:46,060 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 07:33:46,061 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 07:33:46,063 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 07:33:46,065 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 07:33:46,067 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 07:33:46,070 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 07:33:46,071 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 07:33:46,072 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 07:33:46,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 07:33:46,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 07:33:46,081 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 07:33:46,081 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 07:33:46,082 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 07:33:46,085 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 07:33:46,085 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 07:33:46,086 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 07:33:46,089 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 07:33:46,090 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 07:33:46,091 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 07:33:46,091 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 07:33:46,092 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 07:33:46,093 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 07:33:46,093 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 07:33:46,094 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 07:33:46,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 07:33:46,098 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-VariableLbe.epf [2019-12-27 07:33:46,121 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 07:33:46,121 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 07:33:46,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 07:33:46,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 07:33:46,124 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 07:33:46,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 07:33:46,124 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 07:33:46,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 07:33:46,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 07:33:46,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 07:33:46,126 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 07:33:46,126 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 07:33:46,126 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 07:33:46,127 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 07:33:46,127 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 07:33:46,127 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 07:33:46,127 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 07:33:46,128 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 07:33:46,128 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 07:33:46,128 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 07:33:46,128 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 07:33:46,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 07:33:46,129 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 07:33:46,129 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 07:33:46,129 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 07:33:46,129 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 07:33:46,130 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 07:33:46,130 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 07:33:46,130 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 07:33:46,130 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 07:33:46,393 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 07:33:46,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 07:33:46,413 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 07:33:46,415 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 07:33:46,415 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 07:33:46,416 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2019-12-27 07:33:46,484 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04dd84578/06cb04810b9840e7b26b888b19a45561/FLAGe1a956a92 [2019-12-27 07:33:46,968 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 07:33:46,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe008_tso.opt.i [2019-12-27 07:33:46,998 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04dd84578/06cb04810b9840e7b26b888b19a45561/FLAGe1a956a92 [2019-12-27 07:33:47,318 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04dd84578/06cb04810b9840e7b26b888b19a45561 [2019-12-27 07:33:47,327 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 07:33:47,329 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 07:33:47,330 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 07:33:47,330 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 07:33:47,334 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 07:33:47,335 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:47,337 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@78c507e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47, skipping insertion in model container [2019-12-27 07:33:47,338 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:47,345 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 07:33:47,401 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 07:33:47,842 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:33:47,857 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 07:33:47,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 07:33:47,982 INFO L208 MainTranslator]: Completed translation [2019-12-27 07:33:47,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47 WrapperNode [2019-12-27 07:33:47,982 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 07:33:47,983 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 07:33:47,983 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 07:33:47,983 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 07:33:47,992 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,009 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,033 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 07:33:48,033 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 07:33:48,034 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 07:33:48,034 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 07:33:48,043 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,046 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,047 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,055 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,057 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (1/1) ... [2019-12-27 07:33:48,060 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 07:33:48,061 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 07:33:48,061 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 07:33:48,061 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 07:33:48,062 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (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 07:33:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 07:33:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 07:33:48,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 07:33:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 07:33:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 07:33:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 07:33:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 07:33:48,133 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 07:33:48,133 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 07:33:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 07:33:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 07:33:48,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 07:33:48,134 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 07:33:48,136 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 07:33:48,510 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 07:33:48,511 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 07:33:48,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:33:48 BoogieIcfgContainer [2019-12-27 07:33:48,512 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 07:33:48,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 07:33:48,514 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 07:33:48,516 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 07:33:48,517 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 07:33:47" (1/3) ... [2019-12-27 07:33:48,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b298a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:33:48, skipping insertion in model container [2019-12-27 07:33:48,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 07:33:47" (2/3) ... [2019-12-27 07:33:48,518 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58b298a0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 07:33:48, skipping insertion in model container [2019-12-27 07:33:48,518 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 07:33:48" (3/3) ... [2019-12-27 07:33:48,520 INFO L109 eAbstractionObserver]: Analyzing ICFG safe008_tso.opt.i [2019-12-27 07:33:48,530 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 07:33:48,530 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 07:33:48,537 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 07:33:48,538 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 07:33:48,566 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,567 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,567 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,567 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,568 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,568 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,569 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,569 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,569 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,569 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,570 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,570 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,570 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,571 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,571 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,571 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,571 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,572 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,575 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,576 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,576 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,576 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,583 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,584 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,584 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,584 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,604 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,605 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,605 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,605 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 07:33:48,624 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 07:33:48,640 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 07:33:48,640 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 07:33:48,641 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 07:33:48,641 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 07:33:48,641 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 07:33:48,641 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 07:33:48,641 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 07:33:48,641 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 07:33:48,658 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 63 places, 54 transitions [2019-12-27 07:33:48,660 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:33:48,714 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:33:48,715 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:33:48,721 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:33:48,724 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 63 places, 54 transitions [2019-12-27 07:33:48,746 INFO L132 PetriNetUnfolder]: 1/51 cut-off events. [2019-12-27 07:33:48,746 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 07:33:48,748 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 22 event pairs. 0/49 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 07:33:48,749 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 07:33:48,752 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 07:33:50,143 INFO L206 etLargeBlockEncoding]: Checked pairs total: 442 [2019-12-27 07:33:50,143 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 07:33:50,147 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 07:33:50,171 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 07:33:50,174 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 07:33:50,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 07:33:50,189 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:50,190 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:50,190 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:50,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:50,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1632263201, now seen corresponding path program 1 times [2019-12-27 07:33:50,205 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:50,206 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1339273308] [2019-12-27 07:33:50,206 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:50,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:50,468 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 07:33:50,469 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1339273308] [2019-12-27 07:33:50,472 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:50,472 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:33:50,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138563491] [2019-12-27 07:33:50,479 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:33:50,479 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:50,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:33:50,496 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:33:50,500 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 07:33:50,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:50,551 INFO L93 Difference]: Finished difference Result 52 states and 109 transitions. [2019-12-27 07:33:50,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:33:50,554 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 07:33:50,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:50,580 INFO L225 Difference]: With dead ends: 52 [2019-12-27 07:33:50,581 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 07:33:50,589 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 07:33:50,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 07:33:50,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 07:33:50,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 07:33:50,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 07:33:50,649 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 07:33:50,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:50,651 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 07:33:50,651 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:33:50,651 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 07:33:50,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 07:33:50,653 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:50,654 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:50,655 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:50,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:50,655 INFO L82 PathProgramCache]: Analyzing trace with hash -161820659, now seen corresponding path program 1 times [2019-12-27 07:33:50,655 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:50,656 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153130957] [2019-12-27 07:33:50,656 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:50,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:50,767 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 07:33:50,767 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153130957] [2019-12-27 07:33:50,767 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:50,768 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:33:50,768 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [276728486] [2019-12-27 07:33:50,769 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:33:50,769 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:50,770 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:33:50,770 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:33:50,770 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 07:33:50,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:50,776 INFO L93 Difference]: Finished difference Result 33 states and 61 transitions. [2019-12-27 07:33:50,776 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:33:50,777 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 07:33:50,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:50,778 INFO L225 Difference]: With dead ends: 33 [2019-12-27 07:33:50,778 INFO L226 Difference]: Without dead ends: 33 [2019-12-27 07:33:50,779 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 07:33:50,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-12-27 07:33:50,783 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-12-27 07:33:50,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-12-27 07:33:50,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 61 transitions. [2019-12-27 07:33:50,784 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 61 transitions. Word has length 9 [2019-12-27 07:33:50,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:50,785 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 61 transitions. [2019-12-27 07:33:50,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:33:50,785 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 61 transitions. [2019-12-27 07:33:50,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:33:50,786 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:50,786 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:50,786 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:50,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:50,786 INFO L82 PathProgramCache]: Analyzing trace with hash -721473620, now seen corresponding path program 1 times [2019-12-27 07:33:50,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:50,787 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1005014349] [2019-12-27 07:33:50,787 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:50,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:50,861 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 07:33:50,861 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1005014349] [2019-12-27 07:33:50,862 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:50,862 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 07:33:50,862 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055429164] [2019-12-27 07:33:50,862 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:33:50,862 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:50,863 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:33:50,863 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:33:50,863 INFO L87 Difference]: Start difference. First operand 33 states and 61 transitions. Second operand 3 states. [2019-12-27 07:33:50,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:50,868 INFO L93 Difference]: Finished difference Result 32 states and 59 transitions. [2019-12-27 07:33:50,869 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:33:50,869 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:33:50,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:50,870 INFO L225 Difference]: With dead ends: 32 [2019-12-27 07:33:50,870 INFO L226 Difference]: Without dead ends: 32 [2019-12-27 07:33:50,871 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 07:33:50,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-12-27 07:33:50,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-12-27 07:33:50,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-12-27 07:33:50,875 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 59 transitions. [2019-12-27 07:33:50,875 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 59 transitions. Word has length 10 [2019-12-27 07:33:50,875 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:50,876 INFO L462 AbstractCegarLoop]: Abstraction has 32 states and 59 transitions. [2019-12-27 07:33:50,876 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:33:50,876 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 59 transitions. [2019-12-27 07:33:50,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 07:33:50,876 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:50,877 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:50,877 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:50,877 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:50,877 INFO L82 PathProgramCache]: Analyzing trace with hash 943627699, now seen corresponding path program 1 times [2019-12-27 07:33:50,877 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:50,878 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [581172294] [2019-12-27 07:33:50,878 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:50,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:50,924 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 07:33:50,924 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [581172294] [2019-12-27 07:33:50,925 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:50,925 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:50,925 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133931951] [2019-12-27 07:33:50,925 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 07:33:50,926 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:50,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 07:33:50,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 07:33:50,927 INFO L87 Difference]: Start difference. First operand 32 states and 59 transitions. Second operand 3 states. [2019-12-27 07:33:50,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:50,935 INFO L93 Difference]: Finished difference Result 35 states and 61 transitions. [2019-12-27 07:33:50,936 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 07:33:50,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 07:33:50,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:50,938 INFO L225 Difference]: With dead ends: 35 [2019-12-27 07:33:50,938 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 07:33:50,939 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 07:33:50,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 07:33:50,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 07:33:50,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 07:33:50,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 31 transitions. [2019-12-27 07:33:50,942 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 31 transitions. Word has length 10 [2019-12-27 07:33:50,942 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:50,942 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 31 transitions. [2019-12-27 07:33:50,942 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 07:33:50,942 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 31 transitions. [2019-12-27 07:33:50,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:33:50,943 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:50,943 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:50,943 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:50,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:50,944 INFO L82 PathProgramCache]: Analyzing trace with hash -810632101, now seen corresponding path program 1 times [2019-12-27 07:33:50,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:50,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980906453] [2019-12-27 07:33:50,944 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:50,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:50,995 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 07:33:50,996 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980906453] [2019-12-27 07:33:50,996 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:50,996 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:50,997 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840937123] [2019-12-27 07:33:50,997 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:33:50,997 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:50,997 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:33:50,998 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:33:50,998 INFO L87 Difference]: Start difference. First operand 21 states and 31 transitions. Second operand 4 states. [2019-12-27 07:33:51,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:51,019 INFO L93 Difference]: Finished difference Result 25 states and 35 transitions. [2019-12-27 07:33:51,020 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:33:51,020 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:33:51,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:51,020 INFO L225 Difference]: With dead ends: 25 [2019-12-27 07:33:51,021 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 07:33:51,021 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 07:33:51,021 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 07:33:51,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 07:33:51,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 07:33:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 07:33:51,024 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 07:33:51,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:51,024 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 07:33:51,025 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:33:51,025 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 07:33:51,025 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 07:33:51,025 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 07:33:51,025 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 07:33:51,026 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 07:33:51,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 07:33:51,026 INFO L82 PathProgramCache]: Analyzing trace with hash -867176101, now seen corresponding path program 2 times [2019-12-27 07:33:51,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 07:33:51,027 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1508722822] [2019-12-27 07:33:51,027 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 07:33:51,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 07:33:51,073 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 07:33:51,073 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1508722822] [2019-12-27 07:33:51,073 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 07:33:51,073 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 07:33:51,074 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328298722] [2019-12-27 07:33:51,074 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 07:33:51,074 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 07:33:51,074 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 07:33:51,074 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 07:33:51,075 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 4 states. [2019-12-27 07:33:51,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 07:33:51,089 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 07:33:51,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 07:33:51,090 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 07:33:51,090 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 07:33:51,091 INFO L225 Difference]: With dead ends: 16 [2019-12-27 07:33:51,091 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 07:33:51,091 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 07:33:51,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 07:33:51,092 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 07:33:51,092 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 07:33:51,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 07:33:51,092 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 07:33:51,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 07:33:51,092 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 07:33:51,092 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 07:33:51,093 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 07:33:51,093 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 07:33:51,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 07:33:51 BasicIcfg [2019-12-27 07:33:51,097 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 07:33:51,100 INFO L168 Benchmark]: Toolchain (without parser) took 3770.27 ms. Allocated memory was 137.9 MB in the beginning and 246.9 MB in the end (delta: 109.1 MB). Free memory was 99.4 MB in the beginning and 162.1 MB in the end (delta: -62.7 MB). Peak memory consumption was 46.4 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:51,100 INFO L168 Benchmark]: CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 07:33:51,101 INFO L168 Benchmark]: CACSL2BoogieTranslator took 652.82 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 158.2 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:51,102 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.98 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:51,103 INFO L168 Benchmark]: Boogie Preprocessor took 27.19 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:51,104 INFO L168 Benchmark]: RCFGBuilder took 451.66 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 134.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:51,105 INFO L168 Benchmark]: TraceAbstraction took 2583.06 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 134.3 MB in the beginning and 162.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. [2019-12-27 07:33:51,109 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.48 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 652.82 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.2 MB in the beginning and 158.2 MB in the end (delta: -58.9 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.98 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 156.2 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.19 ms. Allocated memory is still 201.9 MB. Free memory was 156.2 MB in the beginning and 154.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 451.66 ms. Allocated memory is still 201.9 MB. Free memory was 154.8 MB in the beginning and 134.3 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2583.06 ms. Allocated memory was 201.9 MB in the beginning and 246.9 MB in the end (delta: 45.1 MB). Free memory was 134.3 MB in the beginning and 162.1 MB in the end (delta: -27.8 MB). Peak memory consumption was 17.3 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 63 ProgramPointsBefore, 22 ProgramPointsAfterwards, 54 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 27 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 234 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 442 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: 6, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 67 SDtfs, 21 SDslu, 30 SDs, 0 SdLazy, 20 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, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 1317 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...