/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:11:58,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:11:58,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:11:58,184 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:11:58,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:11:58,187 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:11:58,188 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:11:58,198 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:11:58,202 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:11:58,205 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:11:58,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:11:58,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:11:58,209 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:11:58,210 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:11:58,213 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:11:58,214 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:11:58,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:11:58,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:11:58,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:11:58,224 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:11:58,228 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:11:58,233 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:11:58,234 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:11:58,235 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:11:58,237 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:11:58,237 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:11:58,237 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:11:58,239 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:11:58,240 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:11:58,241 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:11:58,241 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:11:58,242 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:11:58,243 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:11:58,244 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:11:58,245 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:11:58,245 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:11:58,246 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:11:58,246 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:11:58,246 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:11:58,247 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:11:58,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:11:58,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe-MCR.epf [2019-12-27 18:11:58,283 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:11:58,284 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:11:58,287 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:11:58,287 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:11:58,287 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:11:58,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:11:58,288 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:11:58,288 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:11:58,288 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:11:58,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:11:58,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:11:58,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:11:58,289 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:11:58,289 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:11:58,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:11:58,289 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:11:58,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:11:58,290 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:11:58,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:11:58,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:11:58,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:11:58,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:11:58,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:11:58,292 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:11:58,292 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:11:58,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:11:58,293 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:11:58,293 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:11:58,293 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:11:58,294 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:11:58,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:11:58,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:11:58,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:11:58,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:11:58,588 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:11:58,589 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:11:58,589 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2019-12-27 18:11:58,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18fdccb2/760ca83be3d841bf8f5537b779aa06b6/FLAGfb6e5ff2b [2019-12-27 18:11:59,208 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:11:59,209 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe009_tso.opt.i [2019-12-27 18:11:59,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18fdccb2/760ca83be3d841bf8f5537b779aa06b6/FLAGfb6e5ff2b [2019-12-27 18:11:59,488 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c18fdccb2/760ca83be3d841bf8f5537b779aa06b6 [2019-12-27 18:11:59,497 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:11:59,499 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:11:59,501 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:11:59,501 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:11:59,505 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:11:59,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:11:59" (1/1) ... [2019-12-27 18:11:59,509 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6eedcaae and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:11:59, skipping insertion in model container [2019-12-27 18:11:59,509 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:11:59" (1/1) ... [2019-12-27 18:11:59,517 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:11:59,571 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:12:00,016 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:12:00,029 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:12:00,074 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:12:00,159 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:12:00,160 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00 WrapperNode [2019-12-27 18:12:00,160 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:12:00,161 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:12:00,161 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:12:00,161 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:12:00,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,187 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,210 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:12:00,211 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:12:00,211 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:12:00,211 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:12:00,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,224 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,224 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,230 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,232 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,234 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (1/1) ... [2019-12-27 18:12:00,237 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:12:00,238 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:12:00,238 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:12:00,238 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:12:00,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (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 18:12:00,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:12:00,309 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:12:00,309 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:12:00,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:12:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:12:00,310 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:12:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:12:00,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:12:00,310 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:12:00,312 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 18:12:00,701 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:12:00,703 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:12:00,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:12:00 BoogieIcfgContainer [2019-12-27 18:12:00,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:12:00,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:12:00,706 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:12:00,709 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:12:00,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:11:59" (1/3) ... [2019-12-27 18:12:00,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501f9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:12:00, skipping insertion in model container [2019-12-27 18:12:00,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:12:00" (2/3) ... [2019-12-27 18:12:00,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@501f9e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:12:00, skipping insertion in model container [2019-12-27 18:12:00,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:12:00" (3/3) ... [2019-12-27 18:12:00,713 INFO L109 eAbstractionObserver]: Analyzing ICFG safe009_tso.opt.i [2019-12-27 18:12:00,722 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:12:00,722 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:12:00,729 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:12:00,730 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:12:00,756 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,757 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,757 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,757 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,758 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,758 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,758 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,759 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,759 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,759 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,760 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,760 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,760 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,761 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,761 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,761 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,761 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,762 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,765 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,766 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,766 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,766 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,772 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,773 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,773 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,773 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,775 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,776 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,776 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,776 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:12:00,791 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:12:00,806 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:12:00,806 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:12:00,807 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:12:00,807 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:12:00,807 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:12:00,807 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:12:00,807 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:12:00,807 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:12:00,820 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 18:12:00,821 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:12:00,865 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:12:00,865 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:12:00,872 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:12:00,875 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 18:12:00,893 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 18:12:00,894 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:12:00,895 INFO L76 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 50 events. 1/50 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 22 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:12:00,897 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:12:00,899 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:12:02,426 INFO L206 etLargeBlockEncoding]: Checked pairs total: 444 [2019-12-27 18:12:02,426 INFO L214 etLargeBlockEncoding]: Total number of compositions: 45 [2019-12-27 18:12:02,430 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:12:02,447 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:12:02,449 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:12:02,458 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:12:02,458 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:12:02,459 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:12:02,459 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:12:02,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:12:02,465 INFO L82 PathProgramCache]: Analyzing trace with hash -1049428584, now seen corresponding path program 1 times [2019-12-27 18:12:02,473 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:12:02,473 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969304452] [2019-12-27 18:12:02,474 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:12:02,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:12:02,698 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 18:12:02,698 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969304452] [2019-12-27 18:12:02,699 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:12:02,700 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:12:02,700 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1115462374] [2019-12-27 18:12:02,701 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:12:02,707 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:12:02,721 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:12:02,722 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:12:02,726 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:12:02,726 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:12:02,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:12:02,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:12:02,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:12:02,742 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:12:02,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:12:02,769 INFO L93 Difference]: Finished difference Result 44 states and 89 transitions. [2019-12-27 18:12:02,769 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:12:02,771 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:12:02,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:12:02,782 INFO L225 Difference]: With dead ends: 44 [2019-12-27 18:12:02,782 INFO L226 Difference]: Without dead ends: 36 [2019-12-27 18:12:02,784 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:12:02,803 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2019-12-27 18:12:02,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 36. [2019-12-27 18:12:02,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36 states. [2019-12-27 18:12:02,823 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36 states to 36 states and 69 transitions. [2019-12-27 18:12:02,824 INFO L78 Accepts]: Start accepts. Automaton has 36 states and 69 transitions. Word has length 8 [2019-12-27 18:12:02,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:12:02,825 INFO L462 AbstractCegarLoop]: Abstraction has 36 states and 69 transitions. [2019-12-27 18:12:02,826 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:12:02,826 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states and 69 transitions. [2019-12-27 18:12:02,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:12:02,827 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:12:02,827 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:12:02,827 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:12:02,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:12:02,828 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452116, now seen corresponding path program 1 times [2019-12-27 18:12:02,828 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:12:02,828 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1815053832] [2019-12-27 18:12:02,829 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:12:02,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:12:02,916 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 18:12:02,916 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1815053832] [2019-12-27 18:12:02,916 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:12:02,917 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:12:02,917 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1061961403] [2019-12-27 18:12:02,917 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:12:02,918 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:12:02,924 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:12:02,924 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:12:02,927 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:12:02,928 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:12:02,929 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:12:02,929 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:12:02,929 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:12:02,930 INFO L87 Difference]: Start difference. First operand 36 states and 69 transitions. Second operand 3 states. [2019-12-27 18:12:02,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:12:02,936 INFO L93 Difference]: Finished difference Result 34 states and 64 transitions. [2019-12-27 18:12:02,937 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:12:02,938 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:12:02,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:12:02,939 INFO L225 Difference]: With dead ends: 34 [2019-12-27 18:12:02,939 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:12:02,940 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:12:02,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:12:02,947 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:12:02,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:12:02,951 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:12:02,952 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 9 [2019-12-27 18:12:02,952 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:12:02,952 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:12:02,953 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:12:02,953 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:12:02,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:12:02,953 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:12:02,954 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:12:02,954 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:12:02,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:12:02,955 INFO L82 PathProgramCache]: Analyzing trace with hash 1827452178, now seen corresponding path program 1 times [2019-12-27 18:12:02,955 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:12:02,955 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723061532] [2019-12-27 18:12:02,955 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:12:02,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:12:03,043 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 18:12:03,043 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723061532] [2019-12-27 18:12:03,043 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:12:03,044 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:12:03,044 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1895547967] [2019-12-27 18:12:03,044 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:12:03,045 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:12:03,046 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:12:03,047 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:12:03,047 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:12:03,047 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:12:03,048 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:12:03,048 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:12:03,048 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:12:03,048 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 3 states. [2019-12-27 18:12:03,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:12:03,063 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 18:12:03,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:12:03,063 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 18:12:03,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:12:03,064 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:12:03,064 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 18:12:03,065 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:12:03,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 18:12:03,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 18:12:03,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:12:03,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 18:12:03,069 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 18:12:03,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:12:03,069 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 18:12:03,069 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:12:03,069 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 18:12:03,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:12:03,070 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:12:03,070 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:12:03,070 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:12:03,071 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:12:03,071 INFO L82 PathProgramCache]: Analyzing trace with hash 816442522, now seen corresponding path program 1 times [2019-12-27 18:12:03,071 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:12:03,072 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446610672] [2019-12-27 18:12:03,072 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:12:03,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:12:03,154 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 18:12:03,154 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446610672] [2019-12-27 18:12:03,155 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:12:03,155 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:12:03,156 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1994480473] [2019-12-27 18:12:03,156 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:12:03,158 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:12:03,159 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 11 states and 10 transitions. [2019-12-27 18:12:03,159 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:12:03,159 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:12:03,160 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:12:03,160 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:12:03,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:12:03,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:12:03,161 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 4 states. [2019-12-27 18:12:03,180 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:12:03,180 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2019-12-27 18:12:03,181 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:12:03,181 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 18:12:03,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:12:03,181 INFO L225 Difference]: With dead ends: 33 [2019-12-27 18:12:03,182 INFO L226 Difference]: Without dead ends: 21 [2019-12-27 18:12:03,182 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:12:03,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2019-12-27 18:12:03,184 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2019-12-27 18:12:03,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2019-12-27 18:12:03,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 29 transitions. [2019-12-27 18:12:03,185 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 29 transitions. Word has length 10 [2019-12-27 18:12:03,185 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:12:03,186 INFO L462 AbstractCegarLoop]: Abstraction has 21 states and 29 transitions. [2019-12-27 18:12:03,186 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:12:03,186 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 29 transitions. [2019-12-27 18:12:03,186 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:12:03,187 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:12:03,187 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:12:03,187 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:12:03,187 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:12:03,187 INFO L82 PathProgramCache]: Analyzing trace with hash -1244284059, now seen corresponding path program 1 times [2019-12-27 18:12:03,188 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:12:03,188 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [361866014] [2019-12-27 18:12:03,188 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:12:03,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:12:03,259 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 18:12:03,260 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [361866014] [2019-12-27 18:12:03,260 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:12:03,260 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:12:03,260 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1979229778] [2019-12-27 18:12:03,260 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:12:03,262 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:12:03,264 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 16 states and 19 transitions. [2019-12-27 18:12:03,264 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:12:03,305 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 1 times. [2019-12-27 18:12:03,306 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:12:03,306 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:12:03,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:12:03,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:12:03,307 INFO L87 Difference]: Start difference. First operand 21 states and 29 transitions. Second operand 5 states. [2019-12-27 18:12:03,331 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:12:03,331 INFO L93 Difference]: Finished difference Result 20 states and 28 transitions. [2019-12-27 18:12:03,332 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:12:03,332 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:12:03,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:12:03,332 INFO L225 Difference]: With dead ends: 20 [2019-12-27 18:12:03,332 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:12:03,333 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-12-27 18:12:03,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:12:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:12:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:12:03,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:12:03,334 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:12:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:12:03,334 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:12:03,334 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:12:03,334 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:12:03,334 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:12:03,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:12:03 BasicIcfg [2019-12-27 18:12:03,340 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:12:03,345 INFO L168 Benchmark]: Toolchain (without parser) took 3843.40 ms. Allocated memory was 146.3 MB in the beginning and 245.9 MB in the end (delta: 99.6 MB). Free memory was 102.1 MB in the beginning and 141.1 MB in the end (delta: -39.0 MB). Peak memory consumption was 60.6 MB. Max. memory is 7.1 GB. [2019-12-27 18:12:03,346 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 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 18:12:03,348 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.20 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.7 MB in the beginning and 159.5 MB in the end (delta: -57.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:12:03,354 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.96 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:12:03,355 INFO L168 Benchmark]: Boogie Preprocessor took 26.86 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 18:12:03,357 INFO L168 Benchmark]: RCFGBuilder took 466.62 ms. Allocated memory is still 204.5 MB. Free memory was 156.1 MB in the beginning and 135.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. [2019-12-27 18:12:03,358 INFO L168 Benchmark]: TraceAbstraction took 2634.64 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 134.8 MB in the beginning and 141.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:12:03,369 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 146.3 MB. Free memory was 122.7 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 659.20 ms. Allocated memory was 146.3 MB in the beginning and 204.5 MB in the end (delta: 58.2 MB). Free memory was 101.7 MB in the beginning and 159.5 MB in the end (delta: -57.8 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 49.96 ms. Allocated memory is still 204.5 MB. Free memory was 159.5 MB in the beginning and 157.5 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 26.86 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 156.1 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 466.62 ms. Allocated memory is still 204.5 MB. Free memory was 156.1 MB in the beginning and 135.5 MB in the end (delta: 20.7 MB). Peak memory consumption was 20.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2634.64 ms. Allocated memory was 204.5 MB in the beginning and 245.9 MB in the end (delta: 41.4 MB). Free memory was 134.8 MB in the beginning and 141.1 MB in the end (delta: -6.3 MB). Peak memory consumption was 35.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 62 ProgramPointsBefore, 21 ProgramPointsAfterwards, 53 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 7 FixpointIterations, 13 TrivialSequentialCompositions, 31 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 1 ConcurrentYvCompositions, 1 ChoiceCompositions, 219 VarBasedMoverChecksPositive, 16 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 15 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.2s, 0 MoverChecksTotal, 444 CheckedPairsTotal, 45 TotalNumberOfCompositions - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 53 locations, 1 error locations. Result: SAFE, OverallTime: 2.5s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 55 SDtfs, 32 SDslu, 29 SDs, 0 SdLazy, 23 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=46occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 47 NumberOfCodeBlocks, 47 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 42 ConstructedInterpolants, 0 QuantifiedInterpolants, 962 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...