/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-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:15:04,240 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:15:04,243 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:15:04,263 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:15:04,263 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:15:04,265 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:15:04,267 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:15:04,278 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:15:04,282 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:15:04,285 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:15:04,287 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:15:04,289 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:15:04,289 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:15:04,291 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:15:04,294 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:15:04,296 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:15:04,298 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:15:04,300 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:15:04,302 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:15:04,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:15:04,311 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:15:04,315 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:15:04,316 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:15:04,317 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:15:04,319 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 04:15:04,319 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 04:15:04,320 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 04:15:04,321 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 04:15:04,323 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 04:15:04,324 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 04:15:04,324 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:15:04,325 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:15:04,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:15:04,327 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:15:04,328 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:15:04,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:15:04,330 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:15:04,330 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:15:04,331 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:15:04,331 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:15:04,333 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:15:04,334 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-MCR.epf [2019-12-28 04:15:04,372 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:15:04,372 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:15:04,373 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:15:04,374 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:15:04,376 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:15:04,376 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:15:04,376 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:15:04,377 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:15:04,377 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:15:04,377 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:15:04,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:15:04,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:15:04,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:15:04,378 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:15:04,378 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:15:04,378 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:15:04,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:15:04,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:15:04,379 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:15:04,379 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:15:04,380 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:15:04,380 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:15:04,380 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:15:04,380 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:15:04,380 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:15:04,381 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:15:04,381 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:15:04,381 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:15:04,381 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:15:04,381 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:15:04,383 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:15:04,383 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:15:04,682 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:15:04,696 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:15:04,699 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:15:04,701 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:15:04,701 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:15:04,702 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2019-12-28 04:15:04,767 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d003e1f64/3f31ed511d934376b76c84766a34cdd7/FLAG81db55ec4 [2019-12-28 04:15:05,281 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:15:05,282 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe003_tso.opt.i [2019-12-28 04:15:05,296 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d003e1f64/3f31ed511d934376b76c84766a34cdd7/FLAG81db55ec4 [2019-12-28 04:15:05,552 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d003e1f64/3f31ed511d934376b76c84766a34cdd7 [2019-12-28 04:15:05,562 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:15:05,564 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:15:05,565 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:15:05,565 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:15:05,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:15:05,570 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:15:05" (1/1) ... [2019-12-28 04:15:05,573 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e211ff5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:05, skipping insertion in model container [2019-12-28 04:15:05,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:15:05" (1/1) ... [2019-12-28 04:15:05,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:15:05,640 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:15:06,104 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:15:06,121 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:15:06,204 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:15:06,282 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:15:06,283 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06 WrapperNode [2019-12-28 04:15:06,283 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:15:06,284 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:15:06,284 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:15:06,284 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:15:06,293 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,334 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:15:06,335 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:15:06,335 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:15:06,335 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:15:06,345 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,345 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,348 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,348 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,355 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,357 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,359 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (1/1) ... [2019-12-28 04:15:06,363 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:15:06,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:15:06,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:15:06,364 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:15:06,365 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (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 [2019-12-28 04:15:06,437 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:15:06,438 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:15:06,438 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:15:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:15:06,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:15:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:15:06,439 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:15:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:15:06,439 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:15:06,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:15:06,441 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:15:06,818 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:15:06,819 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:15:06,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:15:06 BoogieIcfgContainer [2019-12-28 04:15:06,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:15:06,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:15:06,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:15:06,825 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:15:06,825 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:15:05" (1/3) ... [2019-12-28 04:15:06,826 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17edbd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:15:06, skipping insertion in model container [2019-12-28 04:15:06,826 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:15:06" (2/3) ... [2019-12-28 04:15:06,827 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17edbd5d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:15:06, skipping insertion in model container [2019-12-28 04:15:06,827 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:15:06" (3/3) ... [2019-12-28 04:15:06,829 INFO L109 eAbstractionObserver]: Analyzing ICFG safe003_tso.opt.i [2019-12-28 04:15:06,838 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:15:06,838 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:15:06,846 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:15:06,847 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:15:06,873 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,873 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,874 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,874 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,875 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,875 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,875 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,876 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,876 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,876 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,877 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,877 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,877 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,877 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,878 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,878 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,878 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,879 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,883 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,883 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,883 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,884 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,892 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,892 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,893 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,893 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,903 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,904 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,904 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:15:06,925 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:15:06,947 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:15:06,947 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:15:06,947 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:15:06,947 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:15:06,948 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:15:06,948 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:15:06,948 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:15:06,948 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:15:06,960 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-28 04:15:07,046 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-28 04:15:07,049 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-28 04:15:07,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:15:07,065 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:15:07,066 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] [2019-12-28 04:15:07,067 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:15:07,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:15:07,073 INFO L82 PathProgramCache]: Analyzing trace with hash -83504505, now seen corresponding path program 1 times [2019-12-28 04:15:07,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:15:07,086 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1709925271] [2019-12-28 04:15:07,086 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:15:07,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:15:07,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:15:07,514 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1709925271] [2019-12-28 04:15:07,515 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:15:07,515 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:15:07,517 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1742534277] [2019-12-28 04:15:07,518 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:15:07,528 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:15:07,558 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 32 states and 31 transitions. [2019-12-28 04:15:07,559 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:15:07,564 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:15:07,565 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:15:07,565 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:15:07,580 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:15:07,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:15:07,587 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-28 04:15:07,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:15:07,714 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-28 04:15:07,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:15:07,716 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-28 04:15:07,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:15:07,749 INFO L225 Difference]: With dead ends: 1295 [2019-12-28 04:15:07,750 INFO L226 Difference]: Without dead ends: 601 [2019-12-28 04:15:07,755 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 [2019-12-28 04:15:07,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-28 04:15:07,863 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-28 04:15:07,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-28 04:15:07,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-28 04:15:07,870 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-28 04:15:07,870 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:15:07,871 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-28 04:15:07,871 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:15:07,871 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-28 04:15:07,874 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:15:07,875 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:15:07,875 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] [2019-12-28 04:15:07,875 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:15:07,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:15:07,876 INFO L82 PathProgramCache]: Analyzing trace with hash 288299186, now seen corresponding path program 1 times [2019-12-28 04:15:07,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:15:07,877 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924007553] [2019-12-28 04:15:07,877 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:15:07,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:15:08,042 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:15:08,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924007553] [2019-12-28 04:15:08,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:15:08,043 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:15:08,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [507534776] [2019-12-28 04:15:08,044 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:15:08,048 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:15:08,052 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 37 states and 40 transitions. [2019-12-28 04:15:08,053 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:15:08,054 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:15:08,055 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-28 04:15:08,056 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:15:08,056 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-28 04:15:08,056 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:15:08,057 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-28 04:15:08,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:15:08,138 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-28 04:15:08,138 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:15:08,138 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-28 04:15:08,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:15:08,144 INFO L225 Difference]: With dead ends: 601 [2019-12-28 04:15:08,144 INFO L226 Difference]: Without dead ends: 538 [2019-12-28 04:15:08,145 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 [2019-12-28 04:15:08,148 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-28 04:15:08,168 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-28 04:15:08,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-28 04:15:08,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-28 04:15:08,172 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-28 04:15:08,172 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:15:08,173 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-28 04:15:08,173 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-28 04:15:08,173 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-28 04:15:08,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-28 04:15:08,176 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:15:08,176 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] [2019-12-28 04:15:08,176 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:15:08,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:15:08,176 INFO L82 PathProgramCache]: Analyzing trace with hash -2025800424, now seen corresponding path program 1 times [2019-12-28 04:15:08,177 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:15:08,177 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695200321] [2019-12-28 04:15:08,178 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:15:08,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:15:08,318 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:15:08,319 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695200321] [2019-12-28 04:15:08,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:15:08,319 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:15:08,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1924035148] [2019-12-28 04:15:08,320 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:15:08,324 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:15:08,329 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 38 states and 41 transitions. [2019-12-28 04:15:08,329 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:15:08,330 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:15:08,330 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:15:08,330 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:15:08,331 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:15:08,331 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:15:08,331 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-28 04:15:08,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:15:08,438 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-28 04:15:08,438 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:15:08,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-28 04:15:08,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:15:08,442 INFO L225 Difference]: With dead ends: 403 [2019-12-28 04:15:08,442 INFO L226 Difference]: Without dead ends: 349 [2019-12-28 04:15:08,442 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 [2019-12-28 04:15:08,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-28 04:15:08,453 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-28 04:15:08,454 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-28 04:15:08,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-28 04:15:08,456 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-28 04:15:08,456 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:15:08,456 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-28 04:15:08,456 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:15:08,457 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-28 04:15:08,462 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-28 04:15:08,463 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:15:08,463 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] [2019-12-28 04:15:08,464 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:15:08,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:15:08,464 INFO L82 PathProgramCache]: Analyzing trace with hash 1679595576, now seen corresponding path program 1 times [2019-12-28 04:15:08,465 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:15:08,465 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1028490978] [2019-12-28 04:15:08,465 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:15:08,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:15:08,718 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:15:08,719 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1028490978] [2019-12-28 04:15:08,720 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:15:08,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:15:08,721 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [385269160] [2019-12-28 04:15:08,721 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:15:08,727 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:15:08,735 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 42 transitions. [2019-12-28 04:15:08,735 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:15:08,736 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:15:08,736 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:15:08,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:15:08,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:15:08,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:15:08,738 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 8 states. [2019-12-28 04:15:08,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:15:08,992 INFO L93 Difference]: Finished difference Result 502 states and 1317 transitions. [2019-12-28 04:15:08,992 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-28 04:15:08,992 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-28 04:15:08,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:15:08,993 INFO L225 Difference]: With dead ends: 502 [2019-12-28 04:15:08,993 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:15:08,993 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2019-12-28 04:15:08,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:15:08,994 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:15:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:15:08,994 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:15:08,994 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-28 04:15:08,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:15:08,995 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:15:08,995 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:15:08,995 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:15:08,995 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:15:09,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:15:09 BasicIcfg [2019-12-28 04:15:09,001 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:15:09,004 INFO L168 Benchmark]: Toolchain (without parser) took 3439.08 ms. Allocated memory was 142.1 MB in the beginning and 250.6 MB in the end (delta: 108.5 MB). Free memory was 100.4 MB in the beginning and 204.5 MB in the end (delta: -104.1 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:15:09,005 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2019-12-28 04:15:09,006 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.08 ms. Allocated memory was 142.1 MB in the beginning and 202.4 MB in the end (delta: 60.3 MB). Free memory was 100.2 MB in the beginning and 157.5 MB in the end (delta: -57.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:15:09,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.93 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 155.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. [2019-12-28 04:15:09,007 INFO L168 Benchmark]: Boogie Preprocessor took 28.06 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-28 04:15:09,008 INFO L168 Benchmark]: RCFGBuilder took 456.74 ms. Allocated memory is still 202.4 MB. Free memory was 154.0 MB in the beginning and 133.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:15:09,009 INFO L168 Benchmark]: TraceAbstraction took 2179.98 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 132.8 MB in the beginning and 204.5 MB in the end (delta: -71.7 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-28 04:15:09,013 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory was 120.3 MB in the beginning and 120.1 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.08 ms. Allocated memory was 142.1 MB in the beginning and 202.4 MB in the end (delta: 60.3 MB). Free memory was 100.2 MB in the beginning and 157.5 MB in the end (delta: -57.3 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.93 ms. Allocated memory is still 202.4 MB. Free memory was 157.5 MB in the beginning and 155.4 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 28.06 ms. Allocated memory is still 202.4 MB. Free memory was 155.4 MB in the beginning and 154.0 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 456.74 ms. Allocated memory is still 202.4 MB. Free memory was 154.0 MB in the beginning and 133.5 MB in the end (delta: 20.5 MB). Peak memory consumption was 20.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2179.98 ms. Allocated memory was 202.4 MB in the beginning and 250.6 MB in the end (delta: 48.2 MB). Free memory was 132.8 MB in the beginning and 204.5 MB in the end (delta: -71.7 MB). There was no memory consumed. 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: 2.0s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 170 SDtfs, 300 SDslu, 400 SDs, 0 SdLazy, 64 SolverSat, 38 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 36 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 126 ConstructedInterpolants, 0 QuantifiedInterpolants, 12234 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...