/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-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:25:29,304 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:25:29,307 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:25:29,324 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:25:29,325 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:25:29,327 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:25:29,329 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:25:29,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:25:29,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:25:29,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:25:29,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:25:29,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:25:29,336 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:25:29,337 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:25:29,338 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:25:29,339 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:25:29,340 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:25:29,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:25:29,342 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:25:29,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:25:29,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:25:29,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:25:29,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:25:29,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:25:29,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 05:25:29,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:25:29,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:25:29,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:25:29,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:25:29,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:25:29,358 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:25:29,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:25:29,359 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:25:29,359 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:25:29,360 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:25:29,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:25:29,361 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-NoLbe.epf [2019-12-19 05:25:29,377 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:25:29,377 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:25:29,378 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:25:29,380 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:25:29,381 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:25:29,381 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:25:29,381 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:25:29,381 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:25:29,381 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:25:29,382 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:25:29,382 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:25:29,382 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:25:29,382 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:25:29,382 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:25:29,383 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:25:29,383 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:25:29,383 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:25:29,383 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:25:29,383 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:25:29,384 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:25:29,384 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:25:29,384 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:25:29,384 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:25:29,384 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:25:29,386 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:25:29,386 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:25:29,387 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:25:29,387 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:25:29,387 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:25:29,387 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:25:29,689 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:25:29,705 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:25:29,710 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:25:29,711 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:25:29,712 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:25:29,713 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-19 05:25:29,790 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871e544f2/459ca3a6651445d7aeeb09afd61e2e8f/FLAGcb4afb37f [2019-12-19 05:25:30,309 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:25:30,309 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe031_tso.oepc.i [2019-12-19 05:25:30,338 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871e544f2/459ca3a6651445d7aeeb09afd61e2e8f/FLAGcb4afb37f [2019-12-19 05:25:30,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/871e544f2/459ca3a6651445d7aeeb09afd61e2e8f [2019-12-19 05:25:30,649 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:25:30,651 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:25:30,652 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:25:30,652 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:25:30,656 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:25:30,657 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:25:30" (1/1) ... [2019-12-19 05:25:30,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1edf8e08 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:30, skipping insertion in model container [2019-12-19 05:25:30,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:25:30" (1/1) ... [2019-12-19 05:25:30,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:25:30,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:25:31,212 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:25:31,221 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:25:31,282 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:25:31,355 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:25:31,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31 WrapperNode [2019-12-19 05:25:31,356 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:25:31,357 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:25:31,357 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:25:31,357 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:25:31,366 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,389 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:25:31,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:25:31,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:25:31,412 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:25:31,421 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,425 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,443 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,448 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (1/1) ... [2019-12-19 05:25:31,454 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:25:31,455 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:25:31,455 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:25:31,455 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:25:31,456 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (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 [2019-12-19 05:25:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:25:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 05:25:31,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:25:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:25:31,531 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 05:25:31,532 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 05:25:31,532 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 05:25:31,533 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 05:25:31,533 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 05:25:31,534 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 05:25:31,534 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 05:25:31,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:25:31,535 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:25:31,537 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:25:31,926 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:25:31,926 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 05:25:31,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:25:31 BoogieIcfgContainer [2019-12-19 05:25:31,928 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:25:31,930 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:25:31,930 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:25:31,933 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:25:31,934 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:25:30" (1/3) ... [2019-12-19 05:25:31,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f7f143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:25:31, skipping insertion in model container [2019-12-19 05:25:31,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:25:31" (2/3) ... [2019-12-19 05:25:31,935 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@32f7f143 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:25:31, skipping insertion in model container [2019-12-19 05:25:31,935 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:25:31" (3/3) ... [2019-12-19 05:25:31,937 INFO L109 eAbstractionObserver]: Analyzing ICFG safe031_tso.oepc.i [2019-12-19 05:25:31,947 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:25:31,948 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:25:31,954 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:25:31,955 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:25:31,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,982 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,982 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,983 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,983 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,984 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,984 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,984 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,985 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,985 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,985 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,986 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,986 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,986 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,986 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,987 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,991 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,991 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,992 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,992 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,997 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,998 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,998 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:31,998 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:32,001 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:32,001 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:32,002 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:32,002 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:25:32,022 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:25:32,041 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:25:32,042 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:25:32,042 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:25:32,042 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:25:32,042 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:25:32,042 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:25:32,042 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:25:32,042 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:25:32,053 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 62 places, 53 transitions [2019-12-19 05:25:32,136 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1247 states. [2019-12-19 05:25:32,138 INFO L276 IsEmpty]: Start isEmpty. Operand 1247 states. [2019-12-19 05:25:32,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-19 05:25:32,154 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:32,155 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:25:32,156 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:32,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:32,162 INFO L82 PathProgramCache]: Analyzing trace with hash 1039992911, now seen corresponding path program 1 times [2019-12-19 05:25:32,171 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:32,172 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [384299412] [2019-12-19 05:25:32,172 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:32,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:32,583 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:25:32,583 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [384299412] [2019-12-19 05:25:32,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:32,585 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 05:25:32,585 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1912827789] [2019-12-19 05:25:32,590 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 05:25:32,591 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:32,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 05:25:32,607 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 05:25:32,609 INFO L87 Difference]: Start difference. First operand 1247 states. Second operand 4 states. [2019-12-19 05:25:32,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:32,726 INFO L93 Difference]: Finished difference Result 1294 states and 3960 transitions. [2019-12-19 05:25:32,727 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 05:25:32,728 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 30 [2019-12-19 05:25:32,729 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:32,759 INFO L225 Difference]: With dead ends: 1294 [2019-12-19 05:25:32,759 INFO L226 Difference]: Without dead ends: 600 [2019-12-19 05:25:32,761 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:25:32,810 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 600 states. [2019-12-19 05:25:32,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 600 to 600. [2019-12-19 05:25:32,879 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 600 states. [2019-12-19 05:25:32,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 600 states to 600 states and 1775 transitions. [2019-12-19 05:25:32,885 INFO L78 Accepts]: Start accepts. Automaton has 600 states and 1775 transitions. Word has length 30 [2019-12-19 05:25:32,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:32,885 INFO L462 AbstractCegarLoop]: Abstraction has 600 states and 1775 transitions. [2019-12-19 05:25:32,885 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 05:25:32,885 INFO L276 IsEmpty]: Start isEmpty. Operand 600 states and 1775 transitions. [2019-12-19 05:25:32,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:25:32,889 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:32,889 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:25:32,889 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:32,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:32,890 INFO L82 PathProgramCache]: Analyzing trace with hash -194802381, now seen corresponding path program 1 times [2019-12-19 05:25:32,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:32,890 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [830570997] [2019-12-19 05:25:32,891 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:32,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:25:33,068 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [830570997] [2019-12-19 05:25:33,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:33,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 05:25:33,068 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1806696447] [2019-12-19 05:25:33,070 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 05:25:33,070 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:33,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 05:25:33,071 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 05:25:33,071 INFO L87 Difference]: Start difference. First operand 600 states and 1775 transitions. Second operand 5 states. [2019-12-19 05:25:33,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:33,144 INFO L93 Difference]: Finished difference Result 600 states and 1694 transitions. [2019-12-19 05:25:33,145 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 05:25:33,145 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 31 [2019-12-19 05:25:33,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:33,150 INFO L225 Difference]: With dead ends: 600 [2019-12-19 05:25:33,150 INFO L226 Difference]: Without dead ends: 537 [2019-12-19 05:25:33,151 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:25:33,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2019-12-19 05:25:33,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 537. [2019-12-19 05:25:33,179 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 537 states. [2019-12-19 05:25:33,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 537 states to 537 states and 1544 transitions. [2019-12-19 05:25:33,182 INFO L78 Accepts]: Start accepts. Automaton has 537 states and 1544 transitions. Word has length 31 [2019-12-19 05:25:33,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:33,183 INFO L462 AbstractCegarLoop]: Abstraction has 537 states and 1544 transitions. [2019-12-19 05:25:33,183 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 05:25:33,183 INFO L276 IsEmpty]: Start isEmpty. Operand 537 states and 1544 transitions. [2019-12-19 05:25:33,185 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-19 05:25:33,185 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:33,185 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:25:33,186 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:33,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:33,186 INFO L82 PathProgramCache]: Analyzing trace with hash 149291031, now seen corresponding path program 1 times [2019-12-19 05:25:33,186 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:33,187 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400268900] [2019-12-19 05:25:33,187 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:33,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:33,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:25:33,293 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400268900] [2019-12-19 05:25:33,293 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:33,294 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:25:33,294 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068102444] [2019-12-19 05:25:33,294 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:25:33,295 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:33,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:25:33,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:25:33,295 INFO L87 Difference]: Start difference. First operand 537 states and 1544 transitions. Second operand 6 states. [2019-12-19 05:25:33,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:33,389 INFO L93 Difference]: Finished difference Result 402 states and 1058 transitions. [2019-12-19 05:25:33,390 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:25:33,390 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 32 [2019-12-19 05:25:33,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:33,393 INFO L225 Difference]: With dead ends: 402 [2019-12-19 05:25:33,393 INFO L226 Difference]: Without dead ends: 348 [2019-12-19 05:25:33,394 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:25:33,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 348 states. [2019-12-19 05:25:33,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 348 to 348. [2019-12-19 05:25:33,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 348 states. [2019-12-19 05:25:33,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 914 transitions. [2019-12-19 05:25:33,407 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 914 transitions. Word has length 32 [2019-12-19 05:25:33,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:33,407 INFO L462 AbstractCegarLoop]: Abstraction has 348 states and 914 transitions. [2019-12-19 05:25:33,407 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:25:33,407 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 914 transitions. [2019-12-19 05:25:33,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:25:33,409 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:33,409 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:25:33,409 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:33,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:33,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1292788502, now seen corresponding path program 1 times [2019-12-19 05:25:33,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:33,410 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1838440028] [2019-12-19 05:25:33,410 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:33,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:33,571 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:25:33,571 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1838440028] [2019-12-19 05:25:33,572 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:33,572 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:25:33,572 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [297218546] [2019-12-19 05:25:33,573 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:25:33,574 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:33,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:25:33,574 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:25:33,575 INFO L87 Difference]: Start difference. First operand 348 states and 914 transitions. Second operand 7 states. [2019-12-19 05:25:33,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:33,768 INFO L93 Difference]: Finished difference Result 726 states and 1958 transitions. [2019-12-19 05:25:33,768 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-19 05:25:33,769 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 05:25:33,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:33,771 INFO L225 Difference]: With dead ends: 726 [2019-12-19 05:25:33,772 INFO L226 Difference]: Without dead ends: 267 [2019-12-19 05:25:33,773 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-12-19 05:25:33,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2019-12-19 05:25:33,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 267. [2019-12-19 05:25:33,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 267 states. [2019-12-19 05:25:33,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 267 states to 267 states and 701 transitions. [2019-12-19 05:25:33,785 INFO L78 Accepts]: Start accepts. Automaton has 267 states and 701 transitions. Word has length 33 [2019-12-19 05:25:33,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:33,785 INFO L462 AbstractCegarLoop]: Abstraction has 267 states and 701 transitions. [2019-12-19 05:25:33,786 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:25:33,786 INFO L276 IsEmpty]: Start isEmpty. Operand 267 states and 701 transitions. [2019-12-19 05:25:33,788 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:25:33,788 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:33,788 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:25:33,789 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:33,789 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:33,789 INFO L82 PathProgramCache]: Analyzing trace with hash 839661758, now seen corresponding path program 2 times [2019-12-19 05:25:33,790 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:33,790 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1373139938] [2019-12-19 05:25:33,790 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:33,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:25:33,985 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1373139938] [2019-12-19 05:25:33,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:33,986 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:25:33,986 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1632456262] [2019-12-19 05:25:33,986 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:25:33,987 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:33,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:25:33,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:25:33,987 INFO L87 Difference]: Start difference. First operand 267 states and 701 transitions. Second operand 7 states. [2019-12-19 05:25:34,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:34,140 INFO L93 Difference]: Finished difference Result 438 states and 1181 transitions. [2019-12-19 05:25:34,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:25:34,140 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 05:25:34,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:34,143 INFO L225 Difference]: With dead ends: 438 [2019-12-19 05:25:34,143 INFO L226 Difference]: Without dead ends: 264 [2019-12-19 05:25:34,143 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2019-12-19 05:25:34,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 264 states. [2019-12-19 05:25:34,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 264 to 264. [2019-12-19 05:25:34,151 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2019-12-19 05:25:34,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 695 transitions. [2019-12-19 05:25:34,152 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 695 transitions. Word has length 33 [2019-12-19 05:25:34,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:34,153 INFO L462 AbstractCegarLoop]: Abstraction has 264 states and 695 transitions. [2019-12-19 05:25:34,153 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:25:34,153 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 695 transitions. [2019-12-19 05:25:34,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-19 05:25:34,154 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:25:34,154 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:25:34,154 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:25:34,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:25:34,155 INFO L82 PathProgramCache]: Analyzing trace with hash 301806180, now seen corresponding path program 3 times [2019-12-19 05:25:34,155 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:25:34,155 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060835955] [2019-12-19 05:25:34,155 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:25:34,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:25:34,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:25:34,251 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060835955] [2019-12-19 05:25:34,251 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:25:34,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 05:25:34,251 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305069787] [2019-12-19 05:25:34,252 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 05:25:34,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:25:34,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 05:25:34,253 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 05:25:34,253 INFO L87 Difference]: Start difference. First operand 264 states and 695 transitions. Second operand 7 states. [2019-12-19 05:25:34,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:25:34,337 INFO L93 Difference]: Finished difference Result 210 states and 533 transitions. [2019-12-19 05:25:34,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 05:25:34,338 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2019-12-19 05:25:34,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:25:34,338 INFO L225 Difference]: With dead ends: 210 [2019-12-19 05:25:34,339 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 05:25:34,339 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 05:25:34,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 05:25:34,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 05:25:34,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 05:25:34,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 05:25:34,340 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2019-12-19 05:25:34,340 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:25:34,340 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 05:25:34,340 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 05:25:34,341 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 05:25:34,341 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 05:25:34,346 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 05:25:34 BasicIcfg [2019-12-19 05:25:34,346 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 05:25:34,349 INFO L168 Benchmark]: Toolchain (without parser) took 3697.45 ms. Allocated memory was 136.3 MB in the beginning and 256.4 MB in the end (delta: 120.1 MB). Free memory was 99.4 MB in the beginning and 179.5 MB in the end (delta: -80.1 MB). Peak memory consumption was 39.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:34,350 INFO L168 Benchmark]: CDTParser took 0.50 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-19 05:25:34,351 INFO L168 Benchmark]: CACSL2BoogieTranslator took 704.42 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 157.9 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:34,352 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.77 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:34,352 INFO L168 Benchmark]: Boogie Preprocessor took 42.81 ms. Allocated memory is still 200.8 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:34,353 INFO L168 Benchmark]: RCFGBuilder took 473.68 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 133.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:34,354 INFO L168 Benchmark]: TraceAbstraction took 2416.06 ms. Allocated memory was 200.8 MB in the beginning and 256.4 MB in the end (delta: 55.6 MB). Free memory was 132.9 MB in the beginning and 179.5 MB in the end (delta: -46.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. [2019-12-19 05:25:34,358 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.50 ms. Allocated memory is still 136.3 MB. Free memory was 119.5 MB in the beginning and 119.2 MB in the end (delta: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 704.42 ms. Allocated memory was 136.3 MB in the beginning and 200.8 MB in the end (delta: 64.5 MB). Free memory was 99.0 MB in the beginning and 157.9 MB in the end (delta: -58.9 MB). Peak memory consumption was 24.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 54.77 ms. Allocated memory is still 200.8 MB. Free memory was 157.9 MB in the beginning and 155.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 42.81 ms. Allocated memory is still 200.8 MB. Free memory was 155.8 MB in the beginning and 153.7 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 473.68 ms. Allocated memory is still 200.8 MB. Free memory was 153.7 MB in the beginning and 133.6 MB in the end (delta: 20.1 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2416.06 ms. Allocated memory was 200.8 MB in the beginning and 256.4 MB in the end (delta: 55.6 MB). Free memory was 132.9 MB in the beginning and 179.5 MB in the end (delta: -46.7 MB). Peak memory consumption was 8.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 297 SDtfs, 376 SDslu, 816 SDs, 0 SdLazy, 101 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 55 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1247occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 192 NumberOfCodeBlocks, 192 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 186 ConstructedInterpolants, 0 QuantifiedInterpolants, 15450 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...