/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-28 04:49:21,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-28 04:49:21,094 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-28 04:49:21,112 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-28 04:49:21,113 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-28 04:49:21,115 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-28 04:49:21,117 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-28 04:49:21,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-28 04:49:21,131 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-28 04:49:21,134 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-28 04:49:21,136 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-28 04:49:21,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-28 04:49:21,138 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-28 04:49:21,140 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-28 04:49:21,142 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-28 04:49:21,144 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-28 04:49:21,145 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-28 04:49:21,146 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-28 04:49:21,148 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-28 04:49:21,154 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-28 04:49:21,158 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-28 04:49:21,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-28 04:49:21,164 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-28 04:49:21,165 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-28 04:49:21,167 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-28 04:49:21,167 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-28 04:49:21,167 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-28 04:49:21,169 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-28 04:49:21,170 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-28 04:49:21,171 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-28 04:49:21,172 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-28 04:49:21,173 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-28 04:49:21,173 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-28 04:49:21,174 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-28 04:49:21,176 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-28 04:49:21,176 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-28 04:49:21,177 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-28 04:49:21,177 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-28 04:49:21,177 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-28 04:49:21,178 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-28 04:49:21,179 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-28 04:49:21,180 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-MCR.epf [2019-12-28 04:49:21,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-28 04:49:21,215 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-28 04:49:21,216 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-28 04:49:21,217 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-28 04:49:21,217 INFO L138 SettingsManager]: * Use SBE=true [2019-12-28 04:49:21,217 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-28 04:49:21,217 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-28 04:49:21,217 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-28 04:49:21,218 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-28 04:49:21,218 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-28 04:49:21,218 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-28 04:49:21,218 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-28 04:49:21,218 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-28 04:49:21,218 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-28 04:49:21,219 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-28 04:49:21,223 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-28 04:49:21,223 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-28 04:49:21,223 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-28 04:49:21,224 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-28 04:49:21,224 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-28 04:49:21,224 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-28 04:49:21,224 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:49:21,224 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-28 04:49:21,225 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-28 04:49:21,225 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-28 04:49:21,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-28 04:49:21,225 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-28 04:49:21,225 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2019-12-28 04:49:21,226 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-28 04:49:21,226 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-28 04:49:21,226 INFO L138 SettingsManager]: * Interpolant automaton=MCR [2019-12-28 04:49:21,227 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-28 04:49:21,494 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-28 04:49:21,508 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-28 04:49:21,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-28 04:49:21,517 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-28 04:49:21,519 INFO L275 PluginConnector]: CDTParser initialized [2019-12-28 04:49:21,520 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-28 04:49:21,600 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51656a22/cb18875c420b419c94dd301a803a79e8/FLAGa41aa53ae [2019-12-28 04:49:22,235 INFO L306 CDTParser]: Found 1 translation units. [2019-12-28 04:49:22,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe017_tso.oepc.i [2019-12-28 04:49:22,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51656a22/cb18875c420b419c94dd301a803a79e8/FLAGa41aa53ae [2019-12-28 04:49:22,533 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c51656a22/cb18875c420b419c94dd301a803a79e8 [2019-12-28 04:49:22,542 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-28 04:49:22,544 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-28 04:49:22,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-28 04:49:22,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-28 04:49:22,549 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-28 04:49:22,550 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:49:22" (1/1) ... [2019-12-28 04:49:22,553 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@32a0bc82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:22, skipping insertion in model container [2019-12-28 04:49:22,553 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:49:22" (1/1) ... [2019-12-28 04:49:22,560 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-28 04:49:22,605 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-28 04:49:23,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:49:23,135 INFO L203 MainTranslator]: Completed pre-run [2019-12-28 04:49:23,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-28 04:49:23,279 INFO L208 MainTranslator]: Completed translation [2019-12-28 04:49:23,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23 WrapperNode [2019-12-28 04:49:23,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-28 04:49:23,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-28 04:49:23,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-28 04:49:23,281 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-28 04:49:23,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,311 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,330 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-28 04:49:23,331 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-28 04:49:23,331 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-28 04:49:23,331 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-28 04:49:23,340 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,343 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,344 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,350 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,352 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,355 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... [2019-12-28 04:49:23,358 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-28 04:49:23,359 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-28 04:49:23,359 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-28 04:49:23,359 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-28 04:49:23,360 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-28 04:49:23,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-28 04:49:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-28 04:49:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-28 04:49:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-28 04:49:23,430 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-28 04:49:23,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-28 04:49:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-28 04:49:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-28 04:49:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-28 04:49:23,431 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-28 04:49:23,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-28 04:49:23,432 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-28 04:49:23,432 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-28 04:49:23,433 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-28 04:49:23,772 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-28 04:49:23,773 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-28 04:49:23,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:49:23 BoogieIcfgContainer [2019-12-28 04:49:23,775 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-28 04:49:23,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-28 04:49:23,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-28 04:49:23,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-28 04:49:23,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:49:22" (1/3) ... [2019-12-28 04:49:23,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e304e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:49:23, skipping insertion in model container [2019-12-28 04:49:23,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:49:23" (2/3) ... [2019-12-28 04:49:23,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e304e7a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:49:23, skipping insertion in model container [2019-12-28 04:49:23,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:49:23" (3/3) ... [2019-12-28 04:49:23,784 INFO L109 eAbstractionObserver]: Analyzing ICFG safe017_tso.oepc.i [2019-12-28 04:49:23,793 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-28 04:49:23,793 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-28 04:49:23,800 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-28 04:49:23,801 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-28 04:49:23,831 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,831 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,832 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,832 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,832 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,833 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,833 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,833 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,834 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,839 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,840 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,840 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,840 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,844 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,844 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,844 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,845 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,845 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,856 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,857 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,857 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,857 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,866 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,866 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,867 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,867 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,870 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,871 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,871 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,871 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-28 04:49:23,886 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-28 04:49:23,903 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-28 04:49:23,903 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-28 04:49:23,903 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-28 04:49:23,904 INFO L376 AbstractCegarLoop]: Backedges is MCR [2019-12-28 04:49:23,904 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-28 04:49:23,904 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-28 04:49:23,904 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-28 04:49:23,904 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-28 04:49:23,915 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 61 places, 52 transitions [2019-12-28 04:49:23,997 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1246 states. [2019-12-28 04:49:23,999 INFO L276 IsEmpty]: Start isEmpty. Operand 1246 states. [2019-12-28 04:49:24,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2019-12-28 04:49:24,016 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:24,018 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:49:24,018 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:24,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:24,025 INFO L82 PathProgramCache]: Analyzing trace with hash -1245236198, now seen corresponding path program 1 times [2019-12-28 04:49:24,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:24,037 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [493645686] [2019-12-28 04:49:24,038 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:24,438 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:24,439 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [493645686] [2019-12-28 04:49:24,442 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:24,442 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-28 04:49:24,443 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1927145366] [2019-12-28 04:49:24,444 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:24,455 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:24,485 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 30 states and 29 transitions. [2019-12-28 04:49:24,486 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:24,489 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:49:24,490 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-28 04:49:24,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:24,503 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-28 04:49:24,503 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-28 04:49:24,505 INFO L87 Difference]: Start difference. First operand 1246 states. Second operand 4 states. [2019-12-28 04:49:24,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:24,610 INFO L93 Difference]: Finished difference Result 1293 states and 3959 transitions. [2019-12-28 04:49:24,611 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-28 04:49:24,612 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 29 [2019-12-28 04:49:24,613 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:24,650 INFO L225 Difference]: With dead ends: 1293 [2019-12-28 04:49:24,650 INFO L226 Difference]: Without dead ends: 599 [2019-12-28 04:49:24,652 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-28 04:49:24,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 599 states. [2019-12-28 04:49:24,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 599 to 599. [2019-12-28 04:49:24,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 599 states. [2019-12-28 04:49:24,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 599 states to 599 states and 1774 transitions. [2019-12-28 04:49:24,763 INFO L78 Accepts]: Start accepts. Automaton has 599 states and 1774 transitions. Word has length 29 [2019-12-28 04:49:24,764 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:24,764 INFO L462 AbstractCegarLoop]: Abstraction has 599 states and 1774 transitions. [2019-12-28 04:49:24,764 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-28 04:49:24,764 INFO L276 IsEmpty]: Start isEmpty. Operand 599 states and 1774 transitions. [2019-12-28 04:49:24,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2019-12-28 04:49:24,768 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:24,768 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:49:24,768 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:24,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:24,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1351365510, now seen corresponding path program 1 times [2019-12-28 04:49:24,769 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:24,770 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019381143] [2019-12-28 04:49:24,770 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:24,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:24,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:24,927 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019381143] [2019-12-28 04:49:24,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:24,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-28 04:49:24,928 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [1993592423] [2019-12-28 04:49:24,928 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:24,933 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:24,938 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 39 states and 46 transitions. [2019-12-28 04:49:24,939 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:25,010 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:49:25,012 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-28 04:49:25,013 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:25,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-28 04:49:25,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-28 04:49:25,013 INFO L87 Difference]: Start difference. First operand 599 states and 1774 transitions. Second operand 6 states. [2019-12-28 04:49:25,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:25,102 INFO L93 Difference]: Finished difference Result 599 states and 1693 transitions. [2019-12-28 04:49:25,102 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-28 04:49:25,102 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 30 [2019-12-28 04:49:25,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:25,107 INFO L225 Difference]: With dead ends: 599 [2019-12-28 04:49:25,107 INFO L226 Difference]: Without dead ends: 536 [2019-12-28 04:49:25,108 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:49:25,114 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 536 states. [2019-12-28 04:49:25,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 536 to 536. [2019-12-28 04:49:25,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 536 states. [2019-12-28 04:49:25,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 536 states to 536 states and 1543 transitions. [2019-12-28 04:49:25,138 INFO L78 Accepts]: Start accepts. Automaton has 536 states and 1543 transitions. Word has length 30 [2019-12-28 04:49:25,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:25,139 INFO L462 AbstractCegarLoop]: Abstraction has 536 states and 1543 transitions. [2019-12-28 04:49:25,139 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-28 04:49:25,139 INFO L276 IsEmpty]: Start isEmpty. Operand 536 states and 1543 transitions. [2019-12-28 04:49:25,141 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-28 04:49:25,141 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:25,141 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:49:25,141 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:25,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:25,142 INFO L82 PathProgramCache]: Analyzing trace with hash -360601844, now seen corresponding path program 1 times [2019-12-28 04:49:25,142 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:25,143 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [261057648] [2019-12-28 04:49:25,143 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:25,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:25,310 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:25,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [261057648] [2019-12-28 04:49:25,311 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:25,311 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-28 04:49:25,311 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [445816081] [2019-12-28 04:49:25,311 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:25,316 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:25,321 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 40 states and 47 transitions. [2019-12-28 04:49:25,322 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:25,371 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 4 times. [2019-12-28 04:49:25,371 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:49:25,371 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:25,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:49:25,372 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:49:25,372 INFO L87 Difference]: Start difference. First operand 536 states and 1543 transitions. Second operand 7 states. [2019-12-28 04:49:25,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:25,494 INFO L93 Difference]: Finished difference Result 401 states and 1057 transitions. [2019-12-28 04:49:25,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:49:25,494 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 31 [2019-12-28 04:49:25,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:25,497 INFO L225 Difference]: With dead ends: 401 [2019-12-28 04:49:25,497 INFO L226 Difference]: Without dead ends: 347 [2019-12-28 04:49:25,498 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2019-12-28 04:49:25,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 347 states. [2019-12-28 04:49:25,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 347 to 347. [2019-12-28 04:49:25,510 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 347 states. [2019-12-28 04:49:25,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 347 states to 347 states and 913 transitions. [2019-12-28 04:49:25,513 INFO L78 Accepts]: Start accepts. Automaton has 347 states and 913 transitions. Word has length 31 [2019-12-28 04:49:25,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:25,514 INFO L462 AbstractCegarLoop]: Abstraction has 347 states and 913 transitions. [2019-12-28 04:49:25,514 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:49:25,514 INFO L276 IsEmpty]: Start isEmpty. Operand 347 states and 913 transitions. [2019-12-28 04:49:25,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:49:25,518 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:25,519 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:49:25,519 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:25,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:25,520 INFO L82 PathProgramCache]: Analyzing trace with hash -645162979, now seen corresponding path program 1 times [2019-12-28 04:49:25,520 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:25,521 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553506851] [2019-12-28 04:49:25,521 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:25,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:25,757 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553506851] [2019-12-28 04:49:25,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:25,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-28 04:49:25,758 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [2045743190] [2019-12-28 04:49:25,758 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:25,764 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:25,773 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 41 states and 48 transitions. [2019-12-28 04:49:25,774 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:25,774 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:49:25,774 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-28 04:49:25,775 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:25,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-28 04:49:25,776 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-28 04:49:25,776 INFO L87 Difference]: Start difference. First operand 347 states and 913 transitions. Second operand 7 states. [2019-12-28 04:49:26,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:26,009 INFO L93 Difference]: Finished difference Result 725 states and 1957 transitions. [2019-12-28 04:49:26,009 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-28 04:49:26,009 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 32 [2019-12-28 04:49:26,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:26,012 INFO L225 Difference]: With dead ends: 725 [2019-12-28 04:49:26,012 INFO L226 Difference]: Without dead ends: 251 [2019-12-28 04:49:26,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=57, Invalid=99, Unknown=0, NotChecked=0, Total=156 [2019-12-28 04:49:26,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 251 states. [2019-12-28 04:49:26,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 251 to 251. [2019-12-28 04:49:26,021 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2019-12-28 04:49:26,022 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 670 transitions. [2019-12-28 04:49:26,022 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 670 transitions. Word has length 32 [2019-12-28 04:49:26,023 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:26,023 INFO L462 AbstractCegarLoop]: Abstraction has 251 states and 670 transitions. [2019-12-28 04:49:26,023 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-28 04:49:26,023 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 670 transitions. [2019-12-28 04:49:26,024 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-28 04:49:26,024 INFO L403 BasicCegarLoop]: Found error trace [2019-12-28 04:49:26,025 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-28 04:49:26,025 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-28 04:49:26,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-28 04:49:26,025 INFO L82 PathProgramCache]: Analyzing trace with hash 853176457, now seen corresponding path program 2 times [2019-12-28 04:49:26,026 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-28 04:49:26,026 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1580690521] [2019-12-28 04:49:26,026 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-28 04:49:26,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-28 04:49:26,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-28 04:49:26,212 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1580690521] [2019-12-28 04:49:26,212 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-28 04:49:26,212 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-28 04:49:26,212 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [981097923] [2019-12-28 04:49:26,213 INFO L132 pAbStrategyModuleMcr]: Constructing automaton for MCR equivalence class. [2019-12-28 04:49:26,216 INFO L197 pAbStrategyModuleMcr]: Started intersection. [2019-12-28 04:49:26,226 INFO L208 pAbStrategyModuleMcr]: Finished intersection with 33 states and 32 transitions. [2019-12-28 04:49:26,232 INFO L219 pAbStrategyModuleMcr]: Constructing interpolant automaton by labelling MCR automaton. [2019-12-28 04:49:26,232 INFO L288 pAbStrategyModuleMcr]: Construction finished. Needed to calculate wp 0 times. [2019-12-28 04:49:26,233 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-28 04:49:26,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-28 04:49:26,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-28 04:49:26,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-28 04:49:26,238 INFO L87 Difference]: Start difference. First operand 251 states and 670 transitions. Second operand 8 states. [2019-12-28 04:49:26,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-28 04:49:26,350 INFO L93 Difference]: Finished difference Result 197 states and 508 transitions. [2019-12-28 04:49:26,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-28 04:49:26,350 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 32 [2019-12-28 04:49:26,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-28 04:49:26,351 INFO L225 Difference]: With dead ends: 197 [2019-12-28 04:49:26,351 INFO L226 Difference]: Without dead ends: 0 [2019-12-28 04:49:26,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2019-12-28 04:49:26,351 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-28 04:49:26,353 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-28 04:49:26,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-28 04:49:26,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-28 04:49:26,354 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2019-12-28 04:49:26,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-28 04:49:26,354 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-28 04:49:26,354 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-28 04:49:26,355 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-28 04:49:26,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-28 04:49:26,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.12 04:49:26 BasicIcfg [2019-12-28 04:49:26,364 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-28 04:49:26,368 INFO L168 Benchmark]: Toolchain (without parser) took 3821.84 ms. Allocated memory was 146.8 MB in the beginning and 247.5 MB in the end (delta: 100.7 MB). Free memory was 102.2 MB in the beginning and 153.3 MB in the end (delta: -51.1 MB). Peak memory consumption was 49.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:26,370 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-28 04:49:26,371 INFO L168 Benchmark]: CACSL2BoogieTranslator took 734.93 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 161.2 MB in the end (delta: -59.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:26,377 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.06 ms. Allocated memory is still 204.5 MB. Free memory was 161.2 MB in the beginning and 159.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:26,378 INFO L168 Benchmark]: Boogie Preprocessor took 27.41 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:26,379 INFO L168 Benchmark]: RCFGBuilder took 416.08 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 137.9 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:26,380 INFO L168 Benchmark]: TraceAbstraction took 2587.87 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 137.2 MB in the beginning and 153.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. [2019-12-28 04:49:26,393 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 146.8 MB. Free memory was 123.1 MB in the beginning and 122.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 734.93 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 102.0 MB in the beginning and 161.2 MB in the end (delta: -59.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 50.06 ms. Allocated memory is still 204.5 MB. Free memory was 161.2 MB in the beginning and 159.3 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.41 ms. Allocated memory is still 204.5 MB. Free memory was 159.3 MB in the beginning and 157.5 MB in the end (delta: 1.9 MB). Peak memory consumption was 1.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 416.08 ms. Allocated memory is still 204.5 MB. Free memory was 157.5 MB in the beginning and 137.9 MB in the end (delta: 19.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2587.87 ms. Allocated memory was 204.5 MB in the beginning and 247.5 MB in the end (delta: 43.0 MB). Free memory was 137.2 MB in the beginning and 153.3 MB in the end (delta: -16.1 MB). Peak memory consumption was 26.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 52 locations, 1 error locations. Result: SAFE, OverallTime: 2.4s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 222 SDtfs, 346 SDslu, 588 SDs, 0 SdLazy, 100 SolverSat, 43 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 54 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1246occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 154 NumberOfCodeBlocks, 154 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 149 ConstructedInterpolants, 0 QuantifiedInterpolants, 13389 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...