/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.epf -i ../../../trunk/examples/svcomp/pthread/sync01.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 08:41:01,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 08:41:01,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 08:41:01,199 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 08:41:01,200 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 08:41:01,201 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 08:41:01,203 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 08:41:01,213 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 08:41:01,216 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 08:41:01,220 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 08:41:01,222 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 08:41:01,224 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 08:41:01,224 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 08:41:01,226 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 08:41:01,229 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 08:41:01,230 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 08:41:01,231 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 08:41:01,232 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 08:41:01,235 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 08:41:01,240 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 08:41:01,244 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 08:41:01,248 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 08:41:01,249 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 08:41:01,250 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 08:41:01,252 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 08:41:01,252 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 08:41:01,253 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 08:41:01,254 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 08:41:01,255 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 08:41:01,256 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 08:41:01,257 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 08:41:01,257 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 08:41:01,258 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 08:41:01,259 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 08:41:01,260 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 08:41:01,260 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 08:41:01,261 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 08:41:01,261 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 08:41:01,261 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 08:41:01,262 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 08:41:01,263 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 08:41:01,264 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.epf [2019-12-27 08:41:01,285 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 08:41:01,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 08:41:01,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 08:41:01,288 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 08:41:01,288 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 08:41:01,288 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 08:41:01,288 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 08:41:01,289 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 08:41:01,289 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 08:41:01,289 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 08:41:01,289 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 08:41:01,289 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 08:41:01,290 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 08:41:01,290 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 08:41:01,290 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 08:41:01,290 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 08:41:01,290 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 08:41:01,291 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 08:41:01,291 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 08:41:01,291 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 08:41:01,291 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 08:41:01,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 08:41:01,292 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 08:41:01,293 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 08:41:01,293 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 08:41:01,293 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 08:41:01,294 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 08:41:01,294 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 08:41:01,294 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 08:41:01,294 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 08:41:01,570 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 08:41:01,583 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 08:41:01,586 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 08:41:01,588 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 08:41:01,588 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 08:41:01,589 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread/sync01.i [2019-12-27 08:41:01,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30354792d/fea510672b3243cd996a0ee76af3d816/FLAG48fb6b848 [2019-12-27 08:41:02,202 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 08:41:02,203 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/sync01.i [2019-12-27 08:41:02,227 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30354792d/fea510672b3243cd996a0ee76af3d816/FLAG48fb6b848 [2019-12-27 08:41:02,480 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/30354792d/fea510672b3243cd996a0ee76af3d816 [2019-12-27 08:41:02,490 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 08:41:02,491 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 08:41:02,492 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 08:41:02,493 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 08:41:02,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 08:41:02,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:41:02" (1/1) ... [2019-12-27 08:41:02,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b22c1eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:02, skipping insertion in model container [2019-12-27 08:41:02,504 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 08:41:02" (1/1) ... [2019-12-27 08:41:02,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 08:41:02,566 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 08:41:03,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:41:03,229 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 08:41:03,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 08:41:03,520 INFO L208 MainTranslator]: Completed translation [2019-12-27 08:41:03,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03 WrapperNode [2019-12-27 08:41:03,521 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 08:41:03,522 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 08:41:03,522 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 08:41:03,522 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 08:41:03,531 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,579 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,623 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 08:41:03,623 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 08:41:03,623 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 08:41:03,623 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 08:41:03,634 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,635 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,643 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,644 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (1/1) ... [2019-12-27 08:41:03,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 08:41:03,668 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 08:41:03,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 08:41:03,668 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 08:41:03,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (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 08:41:03,732 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 08:41:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 08:41:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 08:41:03,733 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2019-12-27 08:41:03,733 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2019-12-27 08:41:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2019-12-27 08:41:03,734 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2019-12-27 08:41:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 08:41:03,734 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2019-12-27 08:41:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-12-27 08:41:03,735 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 08:41:03,735 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 08:41:03,737 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 08:41:04,165 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 08:41:04,166 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 08:41:04,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:41:04 BoogieIcfgContainer [2019-12-27 08:41:04,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 08:41:04,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 08:41:04,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 08:41:04,172 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 08:41:04,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 08:41:02" (1/3) ... [2019-12-27 08:41:04,173 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb28bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:41:04, skipping insertion in model container [2019-12-27 08:41:04,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 08:41:03" (2/3) ... [2019-12-27 08:41:04,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7cb28bd2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 08:41:04, skipping insertion in model container [2019-12-27 08:41:04,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 08:41:04" (3/3) ... [2019-12-27 08:41:04,177 INFO L109 eAbstractionObserver]: Analyzing ICFG sync01.i [2019-12-27 08:41:04,187 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 08:41:04,188 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 08:41:04,196 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 08:41:04,197 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 08:41:04,226 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,226 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,227 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,227 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,227 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,228 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,228 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,228 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,229 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,229 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,229 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,230 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,230 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,230 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,231 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,231 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,231 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,231 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,232 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,232 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,232 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,233 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,233 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,233 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,234 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,234 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,238 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,238 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,239 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~post32| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,239 WARN L315 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,239 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,239 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,240 WARN L315 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork0_#t~nondet31| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,245 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,246 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,246 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet33| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,246 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~nondet34| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,246 WARN L315 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,247 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,247 WARN L315 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post35| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 08:41:04,270 INFO L249 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-12-27 08:41:04,292 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 08:41:04,292 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 08:41:04,292 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 08:41:04,292 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 08:41:04,292 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 08:41:04,293 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 08:41:04,293 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 08:41:04,293 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 08:41:04,306 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 91 places, 91 transitions [2019-12-27 08:41:04,373 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 762 states. [2019-12-27 08:41:04,376 INFO L276 IsEmpty]: Start isEmpty. Operand 762 states. [2019-12-27 08:41:04,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-27 08:41:04,417 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:04,418 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:04,419 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:04,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:04,428 INFO L82 PathProgramCache]: Analyzing trace with hash -624029613, now seen corresponding path program 1 times [2019-12-27 08:41:04,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:04,437 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320722303] [2019-12-27 08:41:04,437 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:04,709 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 08:41:04,709 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320722303] [2019-12-27 08:41:04,710 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:04,711 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 08:41:04,714 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [398683286] [2019-12-27 08:41:04,719 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 08:41:04,719 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:04,734 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 08:41:04,735 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:41:04,737 INFO L87 Difference]: Start difference. First operand 762 states. Second operand 2 states. [2019-12-27 08:41:04,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:04,783 INFO L93 Difference]: Finished difference Result 762 states and 1869 transitions. [2019-12-27 08:41:04,783 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 08:41:04,785 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 68 [2019-12-27 08:41:04,785 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:04,808 INFO L225 Difference]: With dead ends: 762 [2019-12-27 08:41:04,809 INFO L226 Difference]: Without dead ends: 754 [2019-12-27 08:41:04,810 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 08:41:04,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2019-12-27 08:41:04,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 754. [2019-12-27 08:41:04,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 754 states. [2019-12-27 08:41:04,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 754 states to 754 states and 1861 transitions. [2019-12-27 08:41:04,938 INFO L78 Accepts]: Start accepts. Automaton has 754 states and 1861 transitions. Word has length 68 [2019-12-27 08:41:04,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:04,939 INFO L462 AbstractCegarLoop]: Abstraction has 754 states and 1861 transitions. [2019-12-27 08:41:04,940 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 08:41:04,940 INFO L276 IsEmpty]: Start isEmpty. Operand 754 states and 1861 transitions. [2019-12-27 08:41:04,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-27 08:41:04,945 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:04,945 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:04,945 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:04,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:04,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1417321421, now seen corresponding path program 1 times [2019-12-27 08:41:04,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:04,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1458473951] [2019-12-27 08:41:04,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:05,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:05,123 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 08:41:05,124 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1458473951] [2019-12-27 08:41:05,124 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:05,124 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 08:41:05,125 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411894034] [2019-12-27 08:41:05,126 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 08:41:05,127 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:05,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 08:41:05,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 08:41:05,128 INFO L87 Difference]: Start difference. First operand 754 states and 1861 transitions. Second operand 3 states. [2019-12-27 08:41:05,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:05,175 INFO L93 Difference]: Finished difference Result 454 states and 1048 transitions. [2019-12-27 08:41:05,176 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 08:41:05,176 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-12-27 08:41:05,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:05,182 INFO L225 Difference]: With dead ends: 454 [2019-12-27 08:41:05,183 INFO L226 Difference]: Without dead ends: 454 [2019-12-27 08:41:05,184 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 1 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 08:41:05,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2019-12-27 08:41:05,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 454. [2019-12-27 08:41:05,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 454 states. [2019-12-27 08:41:05,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 454 states to 454 states and 1048 transitions. [2019-12-27 08:41:05,214 INFO L78 Accepts]: Start accepts. Automaton has 454 states and 1048 transitions. Word has length 68 [2019-12-27 08:41:05,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:05,215 INFO L462 AbstractCegarLoop]: Abstraction has 454 states and 1048 transitions. [2019-12-27 08:41:05,215 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 08:41:05,215 INFO L276 IsEmpty]: Start isEmpty. Operand 454 states and 1048 transitions. [2019-12-27 08:41:05,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-27 08:41:05,218 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:05,218 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:05,219 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:05,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:05,219 INFO L82 PathProgramCache]: Analyzing trace with hash -314153945, now seen corresponding path program 2 times [2019-12-27 08:41:05,219 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:05,220 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2115141317] [2019-12-27 08:41:05,220 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:05,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:05,361 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 08:41:05,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2115141317] [2019-12-27 08:41:05,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:05,362 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 08:41:05,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1098894782] [2019-12-27 08:41:05,363 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 08:41:05,363 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:05,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 08:41:05,364 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-27 08:41:05,364 INFO L87 Difference]: Start difference. First operand 454 states and 1048 transitions. Second operand 5 states. [2019-12-27 08:41:05,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:05,455 INFO L93 Difference]: Finished difference Result 406 states and 884 transitions. [2019-12-27 08:41:05,455 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 08:41:05,456 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 68 [2019-12-27 08:41:05,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:05,459 INFO L225 Difference]: With dead ends: 406 [2019-12-27 08:41:05,459 INFO L226 Difference]: Without dead ends: 406 [2019-12-27 08:41:05,459 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-12-27 08:41:05,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2019-12-27 08:41:05,470 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 406. [2019-12-27 08:41:05,470 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 406 states. [2019-12-27 08:41:05,472 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 406 states to 406 states and 884 transitions. [2019-12-27 08:41:05,472 INFO L78 Accepts]: Start accepts. Automaton has 406 states and 884 transitions. Word has length 68 [2019-12-27 08:41:05,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:05,473 INFO L462 AbstractCegarLoop]: Abstraction has 406 states and 884 transitions. [2019-12-27 08:41:05,473 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 08:41:05,473 INFO L276 IsEmpty]: Start isEmpty. Operand 406 states and 884 transitions. [2019-12-27 08:41:05,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-27 08:41:05,475 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:05,475 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:05,475 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:05,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:05,476 INFO L82 PathProgramCache]: Analyzing trace with hash -1809399259, now seen corresponding path program 3 times [2019-12-27 08:41:05,476 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:05,476 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573115818] [2019-12-27 08:41:05,476 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:05,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:05,652 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 08:41:05,653 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573115818] [2019-12-27 08:41:05,653 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:05,653 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 08:41:05,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888144956] [2019-12-27 08:41:05,654 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:41:05,654 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:05,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:41:05,655 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:41:05,655 INFO L87 Difference]: Start difference. First operand 406 states and 884 transitions. Second operand 7 states. [2019-12-27 08:41:05,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:05,881 INFO L93 Difference]: Finished difference Result 406 states and 883 transitions. [2019-12-27 08:41:05,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 08:41:05,881 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-12-27 08:41:05,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:05,884 INFO L225 Difference]: With dead ends: 406 [2019-12-27 08:41:05,884 INFO L226 Difference]: Without dead ends: 364 [2019-12-27 08:41:05,885 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-12-27 08:41:05,886 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-12-27 08:41:05,894 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 364. [2019-12-27 08:41:05,894 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 364 states. [2019-12-27 08:41:05,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 364 states to 364 states and 799 transitions. [2019-12-27 08:41:05,896 INFO L78 Accepts]: Start accepts. Automaton has 364 states and 799 transitions. Word has length 68 [2019-12-27 08:41:05,897 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:05,897 INFO L462 AbstractCegarLoop]: Abstraction has 364 states and 799 transitions. [2019-12-27 08:41:05,897 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:41:05,897 INFO L276 IsEmpty]: Start isEmpty. Operand 364 states and 799 transitions. [2019-12-27 08:41:05,899 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-27 08:41:05,899 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 08:41:05,899 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 08:41:05,899 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 08:41:05,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 08:41:05,900 INFO L82 PathProgramCache]: Analyzing trace with hash 1207218393, now seen corresponding path program 1 times [2019-12-27 08:41:05,900 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 08:41:05,901 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895223712] [2019-12-27 08:41:05,901 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 08:41:05,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 08:41:06,080 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 08:41:06,081 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895223712] [2019-12-27 08:41:06,081 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 08:41:06,081 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 08:41:06,081 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [498086452] [2019-12-27 08:41:06,082 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 08:41:06,082 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 08:41:06,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 08:41:06,083 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-27 08:41:06,083 INFO L87 Difference]: Start difference. First operand 364 states and 799 transitions. Second operand 7 states. [2019-12-27 08:41:06,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 08:41:06,227 INFO L93 Difference]: Finished difference Result 347 states and 745 transitions. [2019-12-27 08:41:06,228 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-27 08:41:06,228 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 68 [2019-12-27 08:41:06,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 08:41:06,229 INFO L225 Difference]: With dead ends: 347 [2019-12-27 08:41:06,229 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 08:41:06,229 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2019-12-27 08:41:06,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 08:41:06,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 08:41:06,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 08:41:06,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 08:41:06,232 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 68 [2019-12-27 08:41:06,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 08:41:06,233 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 08:41:06,233 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 08:41:06,233 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 08:41:06,233 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 08:41:06,248 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 08:41:06 BasicIcfg [2019-12-27 08:41:06,248 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 08:41:06,254 INFO L168 Benchmark]: Toolchain (without parser) took 3759.18 ms. Allocated memory was 146.8 MB in the beginning and 244.8 MB in the end (delta: 98.0 MB). Free memory was 102.9 MB in the beginning and 157.9 MB in the end (delta: -55.0 MB). Peak memory consumption was 43.1 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:06,255 INFO L168 Benchmark]: CDTParser took 0.21 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. [2019-12-27 08:41:06,256 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1028.98 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.4 MB in the beginning and 140.8 MB in the end (delta: -38.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:06,256 INFO L168 Benchmark]: Boogie Procedure Inliner took 100.97 ms. Allocated memory is still 205.5 MB. Free memory was 140.8 MB in the beginning and 138.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:06,259 INFO L168 Benchmark]: Boogie Preprocessor took 44.47 ms. Allocated memory is still 205.5 MB. Free memory was 138.1 MB in the beginning and 136.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:06,262 INFO L168 Benchmark]: RCFGBuilder took 499.53 ms. Allocated memory is still 205.5 MB. Free memory was 136.1 MB in the beginning and 110.4 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2019-12-27 08:41:06,263 INFO L168 Benchmark]: TraceAbstraction took 2079.79 ms. Allocated memory was 205.5 MB in the beginning and 244.8 MB in the end (delta: 39.3 MB). Free memory was 109.8 MB in the beginning and 157.9 MB in the end (delta: -48.1 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 08:41:06,275 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 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: 210.1 kB). Peak memory consumption was 210.1 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 1028.98 ms. Allocated memory was 146.8 MB in the beginning and 205.5 MB in the end (delta: 58.7 MB). Free memory was 102.4 MB in the beginning and 140.8 MB in the end (delta: -38.3 MB). Peak memory consumption was 28.5 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 100.97 ms. Allocated memory is still 205.5 MB. Free memory was 140.8 MB in the beginning and 138.1 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.47 ms. Allocated memory is still 205.5 MB. Free memory was 138.1 MB in the beginning and 136.8 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 499.53 ms. Allocated memory is still 205.5 MB. Free memory was 136.1 MB in the beginning and 110.4 MB in the end (delta: 25.7 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2079.79 ms. Allocated memory was 205.5 MB in the beginning and 244.8 MB in the end (delta: 39.3 MB). Free memory was 109.8 MB in the beginning and 157.9 MB in the end (delta: -48.1 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 947]: 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 3 procedures, 85 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 409 SDtfs, 312 SDslu, 643 SDs, 0 SdLazy, 184 SolverSat, 21 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=762occurred 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, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 340 NumberOfCodeBlocks, 340 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 335 ConstructedInterpolants, 0 QuantifiedInterpolants, 44086 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...