/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/thin001_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 18:53:58,128 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 18:53:58,130 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 18:53:58,141 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 18:53:58,142 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 18:53:58,143 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 18:53:58,144 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 18:53:58,146 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 18:53:58,147 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 18:53:58,148 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 18:53:58,149 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 18:53:58,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 18:53:58,151 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 18:53:58,152 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 18:53:58,153 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 18:53:58,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 18:53:58,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 18:53:58,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 18:53:58,157 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 18:53:58,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 18:53:58,161 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 18:53:58,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 18:53:58,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 18:53:58,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 18:53:58,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 18:53:58,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 18:53:58,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 18:53:58,168 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 18:53:58,169 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 18:53:58,170 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 18:53:58,170 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 18:53:58,171 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 18:53:58,172 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 18:53:58,173 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 18:53:58,174 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 18:53:58,174 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 18:53:58,174 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 18:53:58,175 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 18:53:58,175 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 18:53:58,176 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 18:53:58,177 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 18:53:58,177 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 18:53:58,192 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 18:53:58,192 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 18:53:58,193 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 18:53:58,193 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 18:53:58,193 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 18:53:58,194 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 18:53:58,194 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 18:53:58,194 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 18:53:58,194 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 18:53:58,195 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 18:53:58,195 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 18:53:58,195 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 18:53:58,195 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 18:53:58,195 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 18:53:58,196 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 18:53:58,196 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 18:53:58,196 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 18:53:58,196 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 18:53:58,196 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 18:53:58,197 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 18:53:58,197 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 18:53:58,197 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 18:53:58,197 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 18:53:58,197 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 18:53:58,197 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 18:53:58,198 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 18:53:58,198 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 18:53:58,198 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 18:53:58,198 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 18:53:58,198 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 18:53:58,199 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 18:53:58,500 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 18:53:58,520 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 18:53:58,524 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 18:53:58,526 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 18:53:58,527 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 18:53:58,529 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2019-12-27 18:53:58,603 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8165051f2/c516252fcc11406c820b6efcdfcf6995/FLAG622fd0f80 [2019-12-27 18:53:59,136 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 18:53:59,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/thin001_tso.oepc.i [2019-12-27 18:53:59,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8165051f2/c516252fcc11406c820b6efcdfcf6995/FLAG622fd0f80 [2019-12-27 18:53:59,456 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8165051f2/c516252fcc11406c820b6efcdfcf6995 [2019-12-27 18:53:59,466 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 18:53:59,468 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 18:53:59,470 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 18:53:59,470 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 18:53:59,474 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 18:53:59,475 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:59" (1/1) ... [2019-12-27 18:53:59,477 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11780e09 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:53:59, skipping insertion in model container [2019-12-27 18:53:59,478 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 06:53:59" (1/1) ... [2019-12-27 18:53:59,486 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 18:53:59,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 18:53:59,950 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:53:59,961 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 18:54:00,014 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 18:54:00,113 INFO L208 MainTranslator]: Completed translation [2019-12-27 18:54:00,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00 WrapperNode [2019-12-27 18:54:00,113 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 18:54:00,114 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 18:54:00,114 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 18:54:00,115 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 18:54:00,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,161 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 18:54:00,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 18:54:00,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 18:54:00,193 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 18:54:00,203 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,203 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,217 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,218 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,235 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,240 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,244 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (1/1) ... [2019-12-27 18:54:00,250 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 18:54:00,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 18:54:00,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 18:54:00,251 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 18:54:00,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (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 18:54:00,337 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 18:54:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 18:54:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 18:54:00,338 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 18:54:00,339 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 18:54:00,339 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 18:54:00,341 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 18:54:00,341 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 18:54:00,342 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 18:54:00,342 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 18:54:00,342 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 18:54:00,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 18:54:00,343 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 18:54:00,344 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 18:54:00,757 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 18:54:00,757 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 18:54:00,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:54:00 BoogieIcfgContainer [2019-12-27 18:54:00,759 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 18:54:00,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 18:54:00,761 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 18:54:00,764 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 18:54:00,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 06:53:59" (1/3) ... [2019-12-27 18:54:00,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eed6b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:54:00, skipping insertion in model container [2019-12-27 18:54:00,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 06:54:00" (2/3) ... [2019-12-27 18:54:00,766 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5eed6b3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 06:54:00, skipping insertion in model container [2019-12-27 18:54:00,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 06:54:00" (3/3) ... [2019-12-27 18:54:00,768 INFO L109 eAbstractionObserver]: Analyzing ICFG thin001_tso.oepc.i [2019-12-27 18:54:00,778 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 18:54:00,778 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 18:54:00,786 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 18:54:00,787 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 18:54:00,814 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,815 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,815 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,815 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,816 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,816 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,817 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,817 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,817 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,817 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,818 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,818 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,818 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,819 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,819 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,819 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,819 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,820 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,824 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,824 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,824 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,825 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,830 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,831 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,831 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,831 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,834 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,835 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,835 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,835 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 18:54:00,850 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 18:54:00,869 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 18:54:00,869 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 18:54:00,869 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 18:54:00,869 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 18:54:00,869 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 18:54:00,870 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 18:54:00,870 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 18:54:00,870 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 18:54:00,884 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 64 places, 55 transitions [2019-12-27 18:54:00,886 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:54:00,929 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:54:00,929 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:54:00,935 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:54:00,937 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 64 places, 55 transitions [2019-12-27 18:54:00,955 INFO L132 PetriNetUnfolder]: 1/52 cut-off events. [2019-12-27 18:54:00,956 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 18:54:00,957 INFO L76 FinitePrefix]: Finished finitePrefix Result has 62 conditions, 52 events. 1/52 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 21 event pairs. 0/50 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 18:54:00,959 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 18:54:00,960 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 18:54:02,153 WARN L192 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 28 [2019-12-27 18:54:02,500 WARN L192 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2019-12-27 18:54:02,660 INFO L206 etLargeBlockEncoding]: Checked pairs total: 467 [2019-12-27 18:54:02,661 INFO L214 etLargeBlockEncoding]: Total number of compositions: 47 [2019-12-27 18:54:02,664 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 15 transitions [2019-12-27 18:54:02,673 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 46 states. [2019-12-27 18:54:02,675 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states. [2019-12-27 18:54:02,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 18:54:02,681 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:02,682 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:54:02,682 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:02,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:02,689 INFO L82 PathProgramCache]: Analyzing trace with hash 2019279745, now seen corresponding path program 1 times [2019-12-27 18:54:02,700 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:02,700 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875686751] [2019-12-27 18:54:02,700 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:02,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:02,959 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 18:54:02,960 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875686751] [2019-12-27 18:54:02,961 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:02,961 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:54:02,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1422178073] [2019-12-27 18:54:02,964 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:02,973 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:02,989 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 18:54:02,989 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:02,993 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:02,994 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:54:02,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:03,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:54:03,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:54:03,013 INFO L87 Difference]: Start difference. First operand 46 states. Second operand 3 states. [2019-12-27 18:54:03,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:03,047 INFO L93 Difference]: Finished difference Result 42 states and 84 transitions. [2019-12-27 18:54:03,048 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:54:03,050 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 18:54:03,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:03,067 INFO L225 Difference]: With dead ends: 42 [2019-12-27 18:54:03,068 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 18:54:03,073 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 18:54:03,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 18:54:03,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 18:54:03,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 18:54:03,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 18:54:03,125 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 18:54:03,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:03,126 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 18:54:03,126 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:54:03,126 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 18:54:03,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 18:54:03,129 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:03,133 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:54:03,134 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:03,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:03,134 INFO L82 PathProgramCache]: Analyzing trace with hash -1826755775, now seen corresponding path program 1 times [2019-12-27 18:54:03,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:03,142 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [966567981] [2019-12-27 18:54:03,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:03,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:03,255 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 18:54:03,256 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [966567981] [2019-12-27 18:54:03,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:03,256 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:54:03,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1673859150] [2019-12-27 18:54:03,256 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:03,257 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:03,260 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 18:54:03,260 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:03,260 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:03,262 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:54:03,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:03,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:54:03,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:03,263 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 18:54:03,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:03,287 INFO L93 Difference]: Finished difference Result 36 states and 63 transitions. [2019-12-27 18:54:03,287 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:54:03,287 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 18:54:03,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:03,288 INFO L225 Difference]: With dead ends: 36 [2019-12-27 18:54:03,288 INFO L226 Difference]: Without dead ends: 28 [2019-12-27 18:54:03,289 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 18:54:03,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2019-12-27 18:54:03,292 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2019-12-27 18:54:03,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 18:54:03,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 47 transitions. [2019-12-27 18:54:03,294 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 47 transitions. Word has length 9 [2019-12-27 18:54:03,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:03,294 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 47 transitions. [2019-12-27 18:54:03,294 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:54:03,294 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 47 transitions. [2019-12-27 18:54:03,295 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 18:54:03,295 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:03,295 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:54:03,296 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:03,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:03,296 INFO L82 PathProgramCache]: Analyzing trace with hash -794534279, now seen corresponding path program 1 times [2019-12-27 18:54:03,296 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:03,297 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1308405511] [2019-12-27 18:54:03,297 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:03,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:03,340 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 18:54:03,341 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1308405511] [2019-12-27 18:54:03,341 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:03,341 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 18:54:03,341 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [835397287] [2019-12-27 18:54:03,342 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:03,343 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:03,344 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 18:54:03,345 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:03,346 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:03,346 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 18:54:03,346 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:03,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 18:54:03,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 18:54:03,347 INFO L87 Difference]: Start difference. First operand 28 states and 47 transitions. Second operand 3 states. [2019-12-27 18:54:03,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:03,355 INFO L93 Difference]: Finished difference Result 27 states and 45 transitions. [2019-12-27 18:54:03,355 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 18:54:03,355 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 18:54:03,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:03,357 INFO L225 Difference]: With dead ends: 27 [2019-12-27 18:54:03,357 INFO L226 Difference]: Without dead ends: 27 [2019-12-27 18:54:03,358 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 18:54:03,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2019-12-27 18:54:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2019-12-27 18:54:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2019-12-27 18:54:03,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 45 transitions. [2019-12-27 18:54:03,361 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 45 transitions. Word has length 10 [2019-12-27 18:54:03,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:03,362 INFO L462 AbstractCegarLoop]: Abstraction has 27 states and 45 transitions. [2019-12-27 18:54:03,362 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 18:54:03,362 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 45 transitions. [2019-12-27 18:54:03,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:54:03,362 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:03,362 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:54:03,363 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:03,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:03,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1700901458, now seen corresponding path program 1 times [2019-12-27 18:54:03,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:03,363 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1972449954] [2019-12-27 18:54:03,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:03,409 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 18:54:03,410 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1972449954] [2019-12-27 18:54:03,410 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:03,410 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:54:03,410 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2132270174] [2019-12-27 18:54:03,411 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:03,412 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:03,415 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 18 states and 23 transitions. [2019-12-27 18:54:03,415 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:03,415 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 18:54:03,415 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 18:54:03,416 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:03,416 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 18:54:03,416 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 18:54:03,416 INFO L87 Difference]: Start difference. First operand 27 states and 45 transitions. Second operand 4 states. [2019-12-27 18:54:03,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:03,434 INFO L93 Difference]: Finished difference Result 29 states and 46 transitions. [2019-12-27 18:54:03,434 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:54:03,434 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2019-12-27 18:54:03,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:03,435 INFO L225 Difference]: With dead ends: 29 [2019-12-27 18:54:03,435 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 18:54:03,435 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 18:54:03,436 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 18:54:03,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 18:54:03,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 18:54:03,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 18:54:03,438 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 11 [2019-12-27 18:54:03,438 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:03,438 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 18:54:03,439 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 18:54:03,439 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 18:54:03,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 18:54:03,439 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 18:54:03,439 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 18:54:03,440 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 18:54:03,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 18:54:03,440 INFO L82 PathProgramCache]: Analyzing trace with hash 1139321736, now seen corresponding path program 2 times [2019-12-27 18:54:03,440 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 18:54:03,441 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712217853] [2019-12-27 18:54:03,441 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 18:54:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 18:54:03,480 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 18:54:03,480 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712217853] [2019-12-27 18:54:03,480 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 18:54:03,481 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 18:54:03,481 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2011613508] [2019-12-27 18:54:03,481 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 18:54:03,482 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 18:54:03,484 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 18:54:03,485 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 18:54:03,524 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 2 times. [2019-12-27 18:54:03,525 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 18:54:03,525 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 18:54:03,525 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 18:54:03,525 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 18:54:03,526 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 5 states. [2019-12-27 18:54:03,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 18:54:03,544 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 18:54:03,544 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 18:54:03,544 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2019-12-27 18:54:03,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 18:54:03,544 INFO L225 Difference]: With dead ends: 16 [2019-12-27 18:54:03,545 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 18:54:03,545 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 18:54:03,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 18:54:03,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 18:54:03,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 18:54:03,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 18:54:03,545 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 18:54:03,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 18:54:03,546 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 18:54:03,546 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 18:54:03,546 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 18:54:03,546 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 18:54:03,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 06:54:03 BasicIcfg [2019-12-27 18:54:03,549 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 18:54:03,551 INFO L168 Benchmark]: Toolchain (without parser) took 4083.29 ms. Allocated memory was 144.2 MB in the beginning and 250.6 MB in the end (delta: 106.4 MB). Free memory was 100.8 MB in the beginning and 132.5 MB in the end (delta: -31.7 MB). Peak memory consumption was 74.8 MB. Max. memory is 7.1 GB. [2019-12-27 18:54:03,552 INFO L168 Benchmark]: CDTParser took 0.60 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 18:54:03,553 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.96 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 157.9 MB in the end (delta: -57.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 18:54:03,554 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.87 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 153.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:54:03,555 INFO L168 Benchmark]: Boogie Preprocessor took 57.69 ms. Allocated memory is still 201.3 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. [2019-12-27 18:54:03,555 INFO L168 Benchmark]: RCFGBuilder took 508.80 ms. Allocated memory is still 201.3 MB. Free memory was 152.5 MB in the beginning and 131.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. [2019-12-27 18:54:03,556 INFO L168 Benchmark]: TraceAbstraction took 2789.15 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 131.3 MB in the beginning and 132.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. [2019-12-27 18:54:03,560 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.60 ms. Allocated memory is still 144.2 MB. Free memory was 120.6 MB in the beginning and 120.4 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.96 ms. Allocated memory was 144.2 MB in the beginning and 201.3 MB in the end (delta: 57.1 MB). Free memory was 100.4 MB in the beginning and 157.9 MB in the end (delta: -57.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 77.87 ms. Allocated memory is still 201.3 MB. Free memory was 157.9 MB in the beginning and 153.9 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 57.69 ms. Allocated memory is still 201.3 MB. Free memory was 153.9 MB in the beginning and 152.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 508.80 ms. Allocated memory is still 201.3 MB. Free memory was 152.5 MB in the beginning and 131.3 MB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2789.15 ms. Allocated memory was 201.3 MB in the beginning and 250.6 MB in the end (delta: 49.3 MB). Free memory was 131.3 MB in the beginning and 132.5 MB in the end (delta: -1.2 MB). Peak memory consumption was 48.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.7s, 64 ProgramPointsBefore, 21 ProgramPointsAfterwards, 55 TransitionsBefore, 15 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 15 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 1 ChoiceCompositions, 226 VarBasedMoverChecksPositive, 12 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 13 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.1s, 0 MoverChecksTotal, 467 CheckedPairsTotal, 47 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, 55 locations, 1 error locations. Result: SAFE, OverallTime: 2.6s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 29 SDslu, 21 SDs, 0 SdLazy, 18 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.2s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 44 ConstructedInterpolants, 0 QuantifiedInterpolants, 1182 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...