/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/safe025_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:16:43,272 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:16:43,275 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:16:43,294 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:16:43,295 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:16:43,297 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:16:43,299 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:16:43,309 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:16:43,313 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:16:43,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:16:43,319 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:16:43,321 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:16:43,322 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:16:43,324 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:16:43,326 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:16:43,328 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:16:43,329 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:16:43,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:16:43,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:16:43,338 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:16:43,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:16:43,346 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:16:43,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:16:43,348 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:16:43,350 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 14:16:43,356 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:16:43,358 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:16:43,359 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:16:43,361 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:16:43,362 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:16:43,362 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:16:43,363 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:16:43,363 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:16:43,363 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:16:43,364 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:16:43,365 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:16:43,366 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 [2019-12-27 14:16:43,392 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:16:43,393 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:16:43,394 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:16:43,394 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:16:43,394 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:16:43,395 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:16:43,395 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:16:43,395 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:16:43,395 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:16:43,395 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:16:43,396 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:16:43,396 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:16:43,396 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:16:43,396 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:16:43,396 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:16:43,397 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:16:43,397 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:16:43,397 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:16:43,397 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:16:43,397 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:16:43,398 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:16:43,398 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:16:43,398 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:16:43,398 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:16:43,398 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:16:43,399 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:16:43,399 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:16:43,399 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:16:43,399 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:16:43,399 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:16:43,703 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:16:43,719 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:16:43,722 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:16:43,724 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:16:43,724 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:16:43,725 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2019-12-27 14:16:43,789 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31590bd32/56208af3adee455c87d9e4d8de9eadc3/FLAG01e034f41 [2019-12-27 14:16:44,334 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:16:44,335 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe025_tso.oepc.i [2019-12-27 14:16:44,349 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31590bd32/56208af3adee455c87d9e4d8de9eadc3/FLAG01e034f41 [2019-12-27 14:16:44,637 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/31590bd32/56208af3adee455c87d9e4d8de9eadc3 [2019-12-27 14:16:44,646 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:16:44,647 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:16:44,648 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:16:44,648 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:16:44,652 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:16:44,653 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:16:44" (1/1) ... [2019-12-27 14:16:44,656 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@d35bc69 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:44, skipping insertion in model container [2019-12-27 14:16:44,657 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:16:44" (1/1) ... [2019-12-27 14:16:44,665 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:16:44,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:16:45,150 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:16:45,166 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:16:45,256 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:16:45,339 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:16:45,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45 WrapperNode [2019-12-27 14:16:45,340 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:16:45,341 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:16:45,341 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:16:45,341 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:16:45,348 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,365 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,384 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:16:45,384 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:16:45,385 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:16:45,385 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:16:45,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,403 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,405 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,407 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (1/1) ... [2019-12-27 14:16:45,410 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:16:45,411 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:16:45,411 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:16:45,411 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:16:45,412 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (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 14:16:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:16:45,475 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:16:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:16:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:16:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:16:45,476 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:16:45,476 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:16:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:16:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:16:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:16:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:16:45,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:16:45,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:16:45,479 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 14:16:45,840 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:16:45,841 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:16:45,842 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:16:45 BoogieIcfgContainer [2019-12-27 14:16:45,842 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:16:45,844 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:16:45,844 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:16:45,847 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:16:45,847 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:16:44" (1/3) ... [2019-12-27 14:16:45,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5853b231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:16:45, skipping insertion in model container [2019-12-27 14:16:45,848 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:16:45" (2/3) ... [2019-12-27 14:16:45,848 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5853b231 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:16:45, skipping insertion in model container [2019-12-27 14:16:45,849 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:16:45" (3/3) ... [2019-12-27 14:16:45,850 INFO L109 eAbstractionObserver]: Analyzing ICFG safe025_tso.oepc.i [2019-12-27 14:16:45,859 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:16:45,859 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:16:45,867 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:16:45,868 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:16:45,897 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,897 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,898 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,898 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,899 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,899 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,899 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,899 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,900 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,900 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,900 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,900 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,901 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,901 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,901 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,901 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,902 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,902 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,905 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,906 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,906 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,907 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,910 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,910 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,911 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,911 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,922 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,923 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,923 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,923 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:16:45,942 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:16:45,964 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:16:45,964 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:16:45,964 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:16:45,965 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:16:45,965 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:16:45,966 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:16:45,966 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:16:45,966 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:16:45,981 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 14:16:46,074 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 14:16:46,076 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 14:16:46,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 14:16:46,100 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:16:46,104 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] [2019-12-27 14:16:46,104 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:16:46,110 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:16:46,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2051529162, now seen corresponding path program 1 times [2019-12-27 14:16:46,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:16:46,118 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1146381510] [2019-12-27 14:16:46,119 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:16:46,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:16:46,486 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 14:16:46,487 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1146381510] [2019-12-27 14:16:46,488 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:16:46,488 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:16:46,489 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614305914] [2019-12-27 14:16:46,494 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:16:46,495 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:16:46,510 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:16:46,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:16:46,513 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 14:16:46,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:16:46,647 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 14:16:46,647 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:16:46,649 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 14:16:46,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:16:46,673 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 14:16:46,673 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 14:16:46,675 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 [2019-12-27 14:16:46,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 14:16:46,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 14:16:46,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 14:16:46,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 14:16:46,773 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 14:16:46,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:16:46,774 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 14:16:46,774 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:16:46,774 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 14:16:46,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 14:16:46,777 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:16:46,777 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] [2019-12-27 14:16:46,777 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:16:46,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:16:46,778 INFO L82 PathProgramCache]: Analyzing trace with hash 1995748591, now seen corresponding path program 1 times [2019-12-27 14:16:46,778 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:16:46,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633628857] [2019-12-27 14:16:46,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:16:46,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:16:46,907 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 14:16:46,908 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633628857] [2019-12-27 14:16:46,908 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:16:46,908 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:16:46,908 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012976003] [2019-12-27 14:16:46,910 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:16:46,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:16:46,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:16:46,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:16:46,911 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 14:16:47,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:16:47,004 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 14:16:47,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:16:47,007 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 14:16:47,008 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:16:47,016 INFO L225 Difference]: With dead ends: 601 [2019-12-27 14:16:47,017 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 14:16:47,023 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 [2019-12-27 14:16:47,031 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 14:16:47,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 14:16:47,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 14:16:47,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 14:16:47,058 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 14:16:47,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:16:47,058 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 14:16:47,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:16:47,058 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 14:16:47,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:16:47,060 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:16:47,061 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] [2019-12-27 14:16:47,061 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:16:47,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:16:47,062 INFO L82 PathProgramCache]: Analyzing trace with hash -505047863, now seen corresponding path program 1 times [2019-12-27 14:16:47,062 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:16:47,062 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755080822] [2019-12-27 14:16:47,062 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:16:47,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:16:47,219 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 14:16:47,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755080822] [2019-12-27 14:16:47,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:16:47,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:16:47,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536037800] [2019-12-27 14:16:47,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:16:47,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:16:47,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:16:47,221 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:16:47,221 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 14:16:47,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:16:47,326 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 14:16:47,327 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:16:47,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 14:16:47,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:16:47,329 INFO L225 Difference]: With dead ends: 403 [2019-12-27 14:16:47,330 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 14:16:47,330 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 [2019-12-27 14:16:47,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 14:16:47,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 14:16:47,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 14:16:47,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 14:16:47,342 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 14:16:47,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:16:47,342 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 14:16:47,342 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:16:47,342 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 14:16:47,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:16:47,344 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:16:47,344 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, 1] [2019-12-27 14:16:47,344 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:16:47,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:16:47,345 INFO L82 PathProgramCache]: Analyzing trace with hash 1707713269, now seen corresponding path program 1 times [2019-12-27 14:16:47,345 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:16:47,345 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852645663] [2019-12-27 14:16:47,345 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:16:47,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:16:47,526 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 14:16:47,526 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852645663] [2019-12-27 14:16:47,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:16:47,527 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:16:47,527 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900501803] [2019-12-27 14:16:47,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:16:47,528 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:16:47,528 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:16:47,528 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:16:47,528 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-27 14:16:47,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:16:47,823 INFO L93 Difference]: Finished difference Result 565 states and 1500 transitions. [2019-12-27 14:16:47,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:16:47,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 14:16:47,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:16:47,827 INFO L225 Difference]: With dead ends: 565 [2019-12-27 14:16:47,827 INFO L226 Difference]: Without dead ends: 394 [2019-12-27 14:16:47,828 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:16:47,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 394 states. [2019-12-27 14:16:47,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 394 to 340. [2019-12-27 14:16:47,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 340 states. [2019-12-27 14:16:47,841 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 340 states to 340 states and 888 transitions. [2019-12-27 14:16:47,841 INFO L78 Accepts]: Start accepts. Automaton has 340 states and 888 transitions. Word has length 34 [2019-12-27 14:16:47,841 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:16:47,841 INFO L462 AbstractCegarLoop]: Abstraction has 340 states and 888 transitions. [2019-12-27 14:16:47,842 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:16:47,842 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states and 888 transitions. [2019-12-27 14:16:47,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:16:47,843 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:16:47,843 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, 1] [2019-12-27 14:16:47,844 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:16:47,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:16:47,844 INFO L82 PathProgramCache]: Analyzing trace with hash 1534465577, now seen corresponding path program 2 times [2019-12-27 14:16:47,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:16:47,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734532869] [2019-12-27 14:16:47,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:16:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:16:48,043 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 14:16:48,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734532869] [2019-12-27 14:16:48,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:16:48,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:16:48,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2045554321] [2019-12-27 14:16:48,044 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:16:48,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:16:48,045 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:16:48,045 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:16:48,045 INFO L87 Difference]: Start difference. First operand 340 states and 888 transitions. Second operand 8 states. [2019-12-27 14:16:48,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:16:48,171 INFO L93 Difference]: Finished difference Result 556 states and 1473 transitions. [2019-12-27 14:16:48,172 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:16:48,172 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 14:16:48,172 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:16:48,176 INFO L225 Difference]: With dead ends: 556 [2019-12-27 14:16:48,176 INFO L226 Difference]: Without dead ends: 334 [2019-12-27 14:16:48,176 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:16:48,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 334 states. [2019-12-27 14:16:48,185 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 334 to 325. [2019-12-27 14:16:48,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 325 states. [2019-12-27 14:16:48,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 325 states to 325 states and 846 transitions. [2019-12-27 14:16:48,187 INFO L78 Accepts]: Start accepts. Automaton has 325 states and 846 transitions. Word has length 34 [2019-12-27 14:16:48,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:16:48,188 INFO L462 AbstractCegarLoop]: Abstraction has 325 states and 846 transitions. [2019-12-27 14:16:48,188 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:16:48,188 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states and 846 transitions. [2019-12-27 14:16:48,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:16:48,190 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:16:48,194 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, 1] [2019-12-27 14:16:48,195 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:16:48,195 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:16:48,195 INFO L82 PathProgramCache]: Analyzing trace with hash -1612310977, now seen corresponding path program 3 times [2019-12-27 14:16:48,196 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:16:48,198 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517351452] [2019-12-27 14:16:48,198 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:16:48,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:16:48,390 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 14:16:48,391 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517351452] [2019-12-27 14:16:48,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:16:48,392 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-27 14:16:48,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [982520478] [2019-12-27 14:16:48,392 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-27 14:16:48,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:16:48,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-27 14:16:48,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-27 14:16:48,394 INFO L87 Difference]: Start difference. First operand 325 states and 846 transitions. Second operand 8 states. [2019-12-27 14:16:48,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:16:48,507 INFO L93 Difference]: Finished difference Result 487 states and 1305 transitions. [2019-12-27 14:16:48,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:16:48,507 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-27 14:16:48,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:16:48,510 INFO L225 Difference]: With dead ends: 487 [2019-12-27 14:16:48,510 INFO L226 Difference]: Without dead ends: 313 [2019-12-27 14:16:48,510 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-27 14:16:48,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2019-12-27 14:16:48,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 313. [2019-12-27 14:16:48,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 313 states. [2019-12-27 14:16:48,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 313 states to 313 states and 816 transitions. [2019-12-27 14:16:48,518 INFO L78 Accepts]: Start accepts. Automaton has 313 states and 816 transitions. Word has length 34 [2019-12-27 14:16:48,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:16:48,519 INFO L462 AbstractCegarLoop]: Abstraction has 313 states and 816 transitions. [2019-12-27 14:16:48,519 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-27 14:16:48,519 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states and 816 transitions. [2019-12-27 14:16:48,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:16:48,520 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:16:48,521 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, 1] [2019-12-27 14:16:48,521 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:16:48,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:16:48,521 INFO L82 PathProgramCache]: Analyzing trace with hash -627162331, now seen corresponding path program 4 times [2019-12-27 14:16:48,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:16:48,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976886242] [2019-12-27 14:16:48,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:16:48,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:16:48,648 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 14:16:48,649 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976886242] [2019-12-27 14:16:48,649 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:16:48,649 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:16:48,649 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2133222345] [2019-12-27 14:16:48,650 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:16:48,650 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:16:48,650 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:16:48,650 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:16:48,650 INFO L87 Difference]: Start difference. First operand 313 states and 816 transitions. Second operand 7 states. [2019-12-27 14:16:48,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:16:48,783 INFO L93 Difference]: Finished difference Result 259 states and 654 transitions. [2019-12-27 14:16:48,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:16:48,783 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 14:16:48,783 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:16:48,784 INFO L225 Difference]: With dead ends: 259 [2019-12-27 14:16:48,784 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:16:48,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:16:48,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:16:48,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:16:48,785 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:16:48,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:16:48,785 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 14:16:48,785 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:16:48,785 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:16:48,785 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:16:48,786 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:16:48,786 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:16:48,791 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:16:48 BasicIcfg [2019-12-27 14:16:48,791 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:16:48,794 INFO L168 Benchmark]: Toolchain (without parser) took 4145.64 ms. Allocated memory was 139.5 MB in the beginning and 250.1 MB in the end (delta: 110.6 MB). Free memory was 102.3 MB in the beginning and 102.1 MB in the end (delta: 199.7 kB). Peak memory consumption was 110.8 MB. Max. memory is 7.1 GB. [2019-12-27 14:16:48,795 INFO L168 Benchmark]: CDTParser took 1.51 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 14:16:48,796 INFO L168 Benchmark]: CACSL2BoogieTranslator took 691.86 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 161.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2019-12-27 14:16:48,796 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.44 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. [2019-12-27 14:16:48,797 INFO L168 Benchmark]: Boogie Preprocessor took 26.12 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:16:48,798 INFO L168 Benchmark]: RCFGBuilder took 431.65 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 136.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 14:16:48,799 INFO L168 Benchmark]: TraceAbstraction took 2947.58 ms. Allocated memory was 203.9 MB in the beginning and 250.1 MB in the end (delta: 46.1 MB). Free memory was 136.5 MB in the beginning and 102.1 MB in the end (delta: 34.4 MB). Peak memory consumption was 80.6 MB. Max. memory is 7.1 GB. [2019-12-27 14:16:48,803 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.51 ms. Allocated memory is still 139.5 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 691.86 ms. Allocated memory was 139.5 MB in the beginning and 203.9 MB in the end (delta: 64.5 MB). Free memory was 101.9 MB in the beginning and 161.1 MB in the end (delta: -59.2 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.44 ms. Allocated memory is still 203.9 MB. Free memory was 161.1 MB in the beginning and 158.6 MB in the end (delta: 2.6 MB). Peak memory consumption was 2.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.12 ms. Allocated memory is still 203.9 MB. Free memory was 158.6 MB in the beginning and 157.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 431.65 ms. Allocated memory is still 203.9 MB. Free memory was 157.3 MB in the beginning and 136.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2947.58 ms. Allocated memory was 203.9 MB in the beginning and 250.1 MB in the end (delta: 46.1 MB). Free memory was 136.5 MB in the beginning and 102.1 MB in the end (delta: 34.4 MB). Peak memory consumption was 80.6 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.8s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 372 SDtfs, 481 SDslu, 1043 SDs, 0 SdLazy, 180 SolverSat, 47 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 67 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 1.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 7 MinimizatonAttempts, 63 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 232 NumberOfCodeBlocks, 232 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 225 ConstructedInterpolants, 0 QuantifiedInterpolants, 22893 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...