/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-VariableLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 22:16:38,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 22:16:38,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 22:16:38,151 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 22:16:38,152 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 22:16:38,153 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 22:16:38,154 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 22:16:38,156 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 22:16:38,158 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 22:16:38,159 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 22:16:38,160 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 22:16:38,162 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 22:16:38,162 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 22:16:38,163 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 22:16:38,164 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 22:16:38,165 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 22:16:38,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 22:16:38,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 22:16:38,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 22:16:38,171 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 22:16:38,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 22:16:38,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 22:16:38,176 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 22:16:38,177 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 22:16:38,180 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 22:16:38,184 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 22:16:38,185 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 22:16:38,185 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 22:16:38,186 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 22:16:38,188 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 22:16:38,188 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 22:16:38,189 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 22:16:38,189 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 22:16:38,189 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 22:16:38,191 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 22:16:38,191 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 22:16:38,192 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-VariableLbe-MCR.epf [2019-12-27 22:16:38,224 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 22:16:38,225 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 22:16:38,226 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 22:16:38,226 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 22:16:38,226 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 22:16:38,227 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 22:16:38,227 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 22:16:38,227 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 22:16:38,228 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 22:16:38,228 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 22:16:38,228 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 22:16:38,228 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 22:16:38,228 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 22:16:38,229 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 22:16:38,229 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 22:16:38,229 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 22:16:38,229 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 22:16:38,229 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 22:16:38,230 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 22:16:38,231 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 22:16:38,232 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 22:16:38,232 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 22:16:38,233 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 22:16:38,233 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 22:16:38,233 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 22:16:38,233 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 22:16:38,233 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 22:16:38,233 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-27 22:16:38,234 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2019-12-27 22:16:38,235 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 22:16:38,236 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-27 22:16:38,236 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 22:16:38,540 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 22:16:38,557 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 22:16:38,560 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 22:16:38,561 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 22:16:38,562 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 22:16:38,562 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2019-12-27 22:16:38,627 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2caab2e94/d618dc36751b470cb77204a0509462dc/FLAG7a0d4ae8f [2019-12-27 22:16:39,195 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 22:16:39,195 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe004_tso.opt.i [2019-12-27 22:16:39,211 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2caab2e94/d618dc36751b470cb77204a0509462dc/FLAG7a0d4ae8f [2019-12-27 22:16:39,449 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2caab2e94/d618dc36751b470cb77204a0509462dc [2019-12-27 22:16:39,460 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 22:16:39,462 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 22:16:39,463 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 22:16:39,463 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 22:16:39,467 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 22:16:39,468 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:16:39" (1/1) ... [2019-12-27 22:16:39,471 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@c20de5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:39, skipping insertion in model container [2019-12-27 22:16:39,471 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 10:16:39" (1/1) ... [2019-12-27 22:16:39,479 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 22:16:39,532 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 22:16:39,967 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:16:39,983 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 22:16:40,076 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 22:16:40,172 INFO L208 MainTranslator]: Completed translation [2019-12-27 22:16:40,173 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40 WrapperNode [2019-12-27 22:16:40,173 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 22:16:40,174 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 22:16:40,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 22:16:40,176 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 22:16:40,182 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,199 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,218 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 22:16:40,218 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 22:16:40,219 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 22:16:40,219 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 22:16:40,226 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,229 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,230 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,236 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,238 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,241 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (1/1) ... [2019-12-27 22:16:40,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 22:16:40,244 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 22:16:40,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 22:16:40,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 22:16:40,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (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 22:16:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 22:16:40,309 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 22:16:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 22:16:40,310 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 22:16:40,311 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 22:16:40,312 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 22:16:40,312 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 22:16:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 22:16:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 22:16:40,313 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 22:16:40,313 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 22:16:40,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 22:16:40,314 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 22:16:40,315 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 22:16:40,697 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 22:16:40,698 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 22:16:40,699 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:16:40 BoogieIcfgContainer [2019-12-27 22:16:40,699 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 22:16:40,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 22:16:40,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 22:16:40,704 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 22:16:40,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 10:16:39" (1/3) ... [2019-12-27 22:16:40,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f08e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:16:40, skipping insertion in model container [2019-12-27 22:16:40,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 10:16:40" (2/3) ... [2019-12-27 22:16:40,705 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f08e5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 10:16:40, skipping insertion in model container [2019-12-27 22:16:40,705 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 10:16:40" (3/3) ... [2019-12-27 22:16:40,707 INFO L109 eAbstractionObserver]: Analyzing ICFG safe004_tso.opt.i [2019-12-27 22:16:40,715 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 22:16:40,716 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 22:16:40,723 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 22:16:40,724 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 22:16:40,752 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,752 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,752 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,753 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,753 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,754 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,754 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,754 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,755 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,755 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,755 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,755 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,756 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,756 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,756 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,757 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,757 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,757 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,761 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,762 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,762 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,763 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,768 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,769 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,769 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,769 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,772 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,772 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,773 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,773 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 22:16:40,789 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 22:16:40,808 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 22:16:40,809 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 22:16:40,809 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 22:16:40,809 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-27 22:16:40,809 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 22:16:40,809 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 22:16:40,809 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 22:16:40,810 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 22:16:40,824 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 62 places, 53 transitions [2019-12-27 22:16:40,826 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:16:40,872 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:16:40,872 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:16:40,879 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 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:16:40,881 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 62 places, 53 transitions [2019-12-27 22:16:40,901 INFO L132 PetriNetUnfolder]: 1/50 cut-off events. [2019-12-27 22:16:40,901 INFO L133 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2019-12-27 22:16:40,903 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 21 event pairs. 0/48 useless extension candidates. Maximal degree in co-relation 39. Up to 2 conditions per place. [2019-12-27 22:16:40,905 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 450 [2019-12-27 22:16:40,907 INFO L182 etLargeBlockEncoding]: Variable Check. [2019-12-27 22:16:42,267 WARN L192 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 47 [2019-12-27 22:16:42,317 INFO L206 etLargeBlockEncoding]: Checked pairs total: 501 [2019-12-27 22:16:42,317 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 22:16:42,322 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 22 places, 17 transitions [2019-12-27 22:16:42,336 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 54 states. [2019-12-27 22:16:42,337 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2019-12-27 22:16:42,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-12-27 22:16:42,344 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:16:42,345 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:16:42,345 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:16:42,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:16:42,352 INFO L82 PathProgramCache]: Analyzing trace with hash 1273726136, now seen corresponding path program 1 times [2019-12-27 22:16:42,363 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:16:42,364 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1327620010] [2019-12-27 22:16:42,364 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:16:42,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:16:42,585 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 22:16:42,587 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1327620010] [2019-12-27 22:16:42,587 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:16:42,588 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2019-12-27 22:16:42,588 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1133408877] [2019-12-27 22:16:42,592 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:16:42,600 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:16:42,614 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 9 states and 8 transitions. [2019-12-27 22:16:42,615 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:16:42,618 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:16:42,618 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:16:42,619 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:16:42,630 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:16:42,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:16:42,633 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 3 states. [2019-12-27 22:16:42,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:16:42,655 INFO L93 Difference]: Finished difference Result 50 states and 104 transitions. [2019-12-27 22:16:42,656 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:16:42,657 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-12-27 22:16:42,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:16:42,668 INFO L225 Difference]: With dead ends: 50 [2019-12-27 22:16:42,668 INFO L226 Difference]: Without dead ends: 34 [2019-12-27 22:16:42,670 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 22:16:42,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2019-12-27 22:16:42,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2019-12-27 22:16:42,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2019-12-27 22:16:42,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 64 transitions. [2019-12-27 22:16:42,704 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 64 transitions. Word has length 8 [2019-12-27 22:16:42,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:16:42,705 INFO L462 AbstractCegarLoop]: Abstraction has 34 states and 64 transitions. [2019-12-27 22:16:42,705 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:16:42,705 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 64 transitions. [2019-12-27 22:16:42,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 22:16:42,706 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:16:42,706 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:16:42,707 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:16:42,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:16:42,707 INFO L82 PathProgramCache]: Analyzing trace with hash 830846190, now seen corresponding path program 1 times [2019-12-27 22:16:42,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:16:42,708 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [583424608] [2019-12-27 22:16:42,708 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:16:42,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:16:42,788 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 22:16:42,788 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [583424608] [2019-12-27 22:16:42,789 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:16:42,789 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:16:42,789 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [795533243] [2019-12-27 22:16:42,789 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:16:42,790 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:16:42,794 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 10 states and 9 transitions. [2019-12-27 22:16:42,794 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:16:42,794 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:16:42,796 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:16:42,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:16:42,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:16:42,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:16:42,797 INFO L87 Difference]: Start difference. First operand 34 states and 64 transitions. Second operand 4 states. [2019-12-27 22:16:42,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:16:42,832 INFO L93 Difference]: Finished difference Result 39 states and 68 transitions. [2019-12-27 22:16:42,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-27 22:16:42,833 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2019-12-27 22:16:42,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:16:42,833 INFO L225 Difference]: With dead ends: 39 [2019-12-27 22:16:42,833 INFO L226 Difference]: Without dead ends: 31 [2019-12-27 22:16:42,834 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 22:16:42,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2019-12-27 22:16:42,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2019-12-27 22:16:42,838 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2019-12-27 22:16:42,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 54 transitions. [2019-12-27 22:16:42,839 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 54 transitions. Word has length 9 [2019-12-27 22:16:42,839 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:16:42,840 INFO L462 AbstractCegarLoop]: Abstraction has 31 states and 54 transitions. [2019-12-27 22:16:42,840 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:16:42,840 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 54 transitions. [2019-12-27 22:16:42,840 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:16:42,840 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:16:42,841 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:16:42,841 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:16:42,841 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:16:42,841 INFO L82 PathProgramCache]: Analyzing trace with hash 22499836, now seen corresponding path program 1 times [2019-12-27 22:16:42,842 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:16:42,842 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070429525] [2019-12-27 22:16:42,842 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:16:42,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:16:42,915 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 22:16:42,915 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070429525] [2019-12-27 22:16:42,915 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:16:42,915 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 22:16:42,916 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1317827154] [2019-12-27 22:16:42,916 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:16:42,917 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:16:42,920 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 15 states and 18 transitions. [2019-12-27 22:16:42,920 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:16:42,922 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:16:42,922 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 22:16:42,922 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:16:42,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 22:16:42,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 22:16:42,923 INFO L87 Difference]: Start difference. First operand 31 states and 54 transitions. Second operand 4 states. [2019-12-27 22:16:42,953 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:16:42,953 INFO L93 Difference]: Finished difference Result 40 states and 61 transitions. [2019-12-27 22:16:42,954 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 22:16:42,954 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2019-12-27 22:16:42,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:16:42,955 INFO L225 Difference]: With dead ends: 40 [2019-12-27 22:16:42,955 INFO L226 Difference]: Without dead ends: 30 [2019-12-27 22:16:42,955 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 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 22:16:42,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-12-27 22:16:42,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 28. [2019-12-27 22:16:42,959 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2019-12-27 22:16:42,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 43 transitions. [2019-12-27 22:16:42,960 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 43 transitions. Word has length 10 [2019-12-27 22:16:42,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:16:42,960 INFO L462 AbstractCegarLoop]: Abstraction has 28 states and 43 transitions. [2019-12-27 22:16:42,961 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 22:16:42,961 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 43 transitions. [2019-12-27 22:16:42,961 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-12-27 22:16:42,961 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:16:42,962 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:16:42,962 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:16:42,962 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:16:42,962 INFO L82 PathProgramCache]: Analyzing trace with hash -183428321, now seen corresponding path program 1 times [2019-12-27 22:16:42,963 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:16:42,963 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171489007] [2019-12-27 22:16:42,963 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:16:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:16:43,023 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 22:16:43,024 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [171489007] [2019-12-27 22:16:43,024 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:16:43,024 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:16:43,025 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1072806080] [2019-12-27 22:16:43,025 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:16:43,026 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:16:43,028 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 13 states and 14 transitions. [2019-12-27 22:16:43,028 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:16:43,028 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:16:43,028 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:16:43,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:16:43,029 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:16:43,029 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:16:43,029 INFO L87 Difference]: Start difference. First operand 28 states and 43 transitions. Second operand 3 states. [2019-12-27 22:16:43,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:16:43,046 INFO L93 Difference]: Finished difference Result 29 states and 42 transitions. [2019-12-27 22:16:43,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:16:43,046 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2019-12-27 22:16:43,047 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:16:43,047 INFO L225 Difference]: With dead ends: 29 [2019-12-27 22:16:43,047 INFO L226 Difference]: Without dead ends: 17 [2019-12-27 22:16:43,048 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 22:16:43,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2019-12-27 22:16:43,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2019-12-27 22:16:43,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2019-12-27 22:16:43,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 21 transitions. [2019-12-27 22:16:43,053 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 21 transitions. Word has length 10 [2019-12-27 22:16:43,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:16:43,054 INFO L462 AbstractCegarLoop]: Abstraction has 17 states and 21 transitions. [2019-12-27 22:16:43,054 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:16:43,054 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 21 transitions. [2019-12-27 22:16:43,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 22:16:43,055 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 22:16:43,055 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 22:16:43,055 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 22:16:43,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 22:16:43,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1391310681, now seen corresponding path program 1 times [2019-12-27 22:16:43,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 22:16:43,058 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717860538] [2019-12-27 22:16:43,058 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 22:16:43,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 22:16:43,128 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 22:16:43,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717860538] [2019-12-27 22:16:43,128 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 22:16:43,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 22:16:43,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1917817369] [2019-12-27 22:16:43,129 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-27 22:16:43,130 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-27 22:16:43,132 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 14 states and 15 transitions. [2019-12-27 22:16:43,133 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-27 22:16:43,133 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-27 22:16:43,133 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 22:16:43,133 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 22:16:43,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 22:16:43,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 22:16:43,134 INFO L87 Difference]: Start difference. First operand 17 states and 21 transitions. Second operand 3 states. [2019-12-27 22:16:43,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 22:16:43,139 INFO L93 Difference]: Finished difference Result 16 states and 20 transitions. [2019-12-27 22:16:43,140 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 22:16:43,140 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 22:16:43,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 22:16:43,140 INFO L225 Difference]: With dead ends: 16 [2019-12-27 22:16:43,140 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 22:16:43,141 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 22:16:43,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 22:16:43,141 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 22:16:43,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 22:16:43,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 22:16:43,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2019-12-27 22:16:43,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 22:16:43,142 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 22:16:43,142 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 22:16:43,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 22:16:43,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 22:16:43,145 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 10:16:43 BasicIcfg [2019-12-27 22:16:43,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 22:16:43,147 INFO L168 Benchmark]: Toolchain (without parser) took 3686.23 ms. Allocated memory was 148.4 MB in the beginning and 242.2 MB in the end (delta: 93.8 MB). Free memory was 103.8 MB in the beginning and 137.4 MB in the end (delta: -33.5 MB). Peak memory consumption was 60.3 MB. Max. memory is 7.1 GB. [2019-12-27 22:16:43,148 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 22:16:43,149 INFO L168 Benchmark]: CACSL2BoogieTranslator took 710.86 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 103.4 MB in the beginning and 163.1 MB in the end (delta: -59.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. [2019-12-27 22:16:43,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.92 ms. Allocated memory is still 205.0 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 22:16:43,151 INFO L168 Benchmark]: Boogie Preprocessor took 25.65 ms. Allocated memory is still 205.0 MB. Free memory was 161.1 MB in the beginning and 159.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:16:43,152 INFO L168 Benchmark]: RCFGBuilder took 455.09 ms. Allocated memory is still 205.0 MB. Free memory was 159.2 MB in the beginning and 139.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-12-27 22:16:43,153 INFO L168 Benchmark]: TraceAbstraction took 2445.09 ms. Allocated memory was 205.0 MB in the beginning and 242.2 MB in the end (delta: 37.2 MB). Free memory was 139.1 MB in the beginning and 137.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. [2019-12-27 22:16:43,156 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 148.4 MB. Free memory was 123.5 MB in the beginning and 123.3 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 710.86 ms. Allocated memory was 148.4 MB in the beginning and 205.0 MB in the end (delta: 56.6 MB). Free memory was 103.4 MB in the beginning and 163.1 MB in the end (delta: -59.7 MB). Peak memory consumption was 22.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 43.92 ms. Allocated memory is still 205.0 MB. Free memory was 163.1 MB in the beginning and 161.1 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 25.65 ms. Allocated memory is still 205.0 MB. Free memory was 161.1 MB in the beginning and 159.2 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 455.09 ms. Allocated memory is still 205.0 MB. Free memory was 159.2 MB in the beginning and 139.7 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2445.09 ms. Allocated memory was 205.0 MB in the beginning and 242.2 MB in the end (delta: 37.2 MB). Free memory was 139.1 MB in the beginning and 137.4 MB in the end (delta: 1.7 MB). Peak memory consumption was 38.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.4s, 62 ProgramPointsBefore, 22 ProgramPointsAfterwards, 53 TransitionsBefore, 17 TransitionsAfterwards, 450 CoEnabledTransitionPairs, 6 FixpointIterations, 13 TrivialSequentialCompositions, 28 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 3 ConcurrentYvCompositions, 0 ChoiceCompositions, 253 VarBasedMoverChecksPositive, 13 VarBasedMoverChecksNegative, 0 SemBasedMoverChecksPositive, 0 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.0s, 0 MoverChecksTotal, 501 CheckedPairsTotal, 44 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: 2.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 66 SDtfs, 22 SDslu, 47 SDs, 0 SdLazy, 29 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 12 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 43 ConstructedInterpolants, 0 QuantifiedInterpolants, 837 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...