/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-wmm/safe034_tso.oepc.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 14:36:50,232 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 14:36:50,235 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 14:36:50,254 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 14:36:50,255 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 14:36:50,257 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 14:36:50,259 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 14:36:50,263 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 14:36:50,265 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 14:36:50,265 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 14:36:50,266 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 14:36:50,267 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 14:36:50,268 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 14:36:50,268 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 14:36:50,269 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 14:36:50,270 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 14:36:50,271 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 14:36:50,272 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 14:36:50,274 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 14:36:50,276 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 14:36:50,277 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 14:36:50,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 14:36:50,279 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 14:36:50,280 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 14:36:50,282 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-27 14:36:50,285 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 14:36:50,286 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 14:36:50,286 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 14:36:50,287 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 14:36:50,288 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 14:36:50,288 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 14:36:50,289 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 14:36:50,289 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 14:36:50,290 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 14:36:50,290 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 14:36:50,291 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 14:36:50,292 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 14:36:50,305 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 14:36:50,306 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 14:36:50,307 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 14:36:50,307 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 14:36:50,307 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 14:36:50,307 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 14:36:50,308 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 14:36:50,308 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 14:36:50,308 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 14:36:50,308 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 14:36:50,308 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 14:36:50,309 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 14:36:50,309 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 14:36:50,309 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 14:36:50,309 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 14:36:50,309 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 14:36:50,310 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 14:36:50,310 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 14:36:50,310 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 14:36:50,310 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 14:36:50,310 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 14:36:50,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 14:36:50,311 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 14:36:50,311 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 14:36:50,311 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 14:36:50,311 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 14:36:50,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 14:36:50,312 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-27 14:36:50,312 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 14:36:50,312 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 14:36:50,580 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 14:36:50,592 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 14:36:50,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 14:36:50,597 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 14:36:50,597 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 14:36:50,598 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2019-12-27 14:36:50,659 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510955413/6673a8e36a154ba382dda716d710bcb9/FLAGd5852cccf [2019-12-27 14:36:51,199 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 14:36:51,200 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_tso.oepc.i [2019-12-27 14:36:51,221 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510955413/6673a8e36a154ba382dda716d710bcb9/FLAGd5852cccf [2019-12-27 14:36:51,482 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/510955413/6673a8e36a154ba382dda716d710bcb9 [2019-12-27 14:36:51,492 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 14:36:51,494 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 14:36:51,496 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 14:36:51,496 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 14:36:51,499 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 14:36:51,500 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:36:51" (1/1) ... [2019-12-27 14:36:51,503 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64745772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:51, skipping insertion in model container [2019-12-27 14:36:51,503 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 02:36:51" (1/1) ... [2019-12-27 14:36:51,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 14:36:51,572 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 14:36:52,056 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:36:52,066 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 14:36:52,115 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 14:36:52,209 INFO L208 MainTranslator]: Completed translation [2019-12-27 14:36:52,209 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52 WrapperNode [2019-12-27 14:36:52,209 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 14:36:52,210 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 14:36:52,210 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 14:36:52,210 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 14:36:52,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,262 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 14:36:52,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 14:36:52,263 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 14:36:52,263 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 14:36:52,270 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,270 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,273 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,273 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,279 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,283 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (1/1) ... [2019-12-27 14:36:52,287 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 14:36:52,287 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 14:36:52,287 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 14:36:52,287 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 14:36:52,288 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (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 14:36:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 14:36:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-27 14:36:52,354 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 14:36:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 14:36:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-27 14:36:52,355 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-27 14:36:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-27 14:36:52,355 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-27 14:36:52,355 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-27 14:36:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-27 14:36:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-27 14:36:52,356 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 14:36:52,356 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 14:36:52,358 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 14:36:52,695 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 14:36:52,695 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-27 14:36:52,697 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:36:52 BoogieIcfgContainer [2019-12-27 14:36:52,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 14:36:52,698 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 14:36:52,698 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 14:36:52,702 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 14:36:52,702 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 02:36:51" (1/3) ... [2019-12-27 14:36:52,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b1170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:36:52, skipping insertion in model container [2019-12-27 14:36:52,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 02:36:52" (2/3) ... [2019-12-27 14:36:52,704 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f7b1170 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 02:36:52, skipping insertion in model container [2019-12-27 14:36:52,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 02:36:52" (3/3) ... [2019-12-27 14:36:52,705 INFO L109 eAbstractionObserver]: Analyzing ICFG safe034_tso.oepc.i [2019-12-27 14:36:52,715 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 14:36:52,716 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 14:36:52,724 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-27 14:36:52,726 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 14:36:52,754 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,754 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,754 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,755 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,755 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,755 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,755 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,756 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,756 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,756 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,757 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,757 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,758 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,758 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,758 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,758 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,759 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,762 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,763 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,763 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,764 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,769 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,769 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,770 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,770 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,772 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,772 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,772 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,773 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 14:36:52,794 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-27 14:36:52,815 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 14:36:52,815 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 14:36:52,815 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 14:36:52,816 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 14:36:52,816 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 14:36:52,817 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 14:36:52,817 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 14:36:52,817 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 14:36:52,832 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 63 places, 54 transitions [2019-12-27 14:36:52,925 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1248 states. [2019-12-27 14:36:52,927 INFO L276 IsEmpty]: Start isEmpty. Operand 1248 states. [2019-12-27 14:36:52,957 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-27 14:36:52,957 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:36:52,958 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] [2019-12-27 14:36:52,959 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:36:52,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:36:52,965 INFO L82 PathProgramCache]: Analyzing trace with hash -1045891057, now seen corresponding path program 1 times [2019-12-27 14:36:52,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:36:52,973 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1145039760] [2019-12-27 14:36:52,973 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:36:53,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:36:53,344 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 14:36:53,344 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1145039760] [2019-12-27 14:36:53,347 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:36:53,347 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-27 14:36:53,348 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979999301] [2019-12-27 14:36:53,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-27 14:36:53,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:36:53,370 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-27 14:36:53,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-27 14:36:53,374 INFO L87 Difference]: Start difference. First operand 1248 states. Second operand 4 states. [2019-12-27 14:36:53,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:36:53,484 INFO L93 Difference]: Finished difference Result 1295 states and 3961 transitions. [2019-12-27 14:36:53,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-27 14:36:53,510 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 31 [2019-12-27 14:36:53,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:36:53,532 INFO L225 Difference]: With dead ends: 1295 [2019-12-27 14:36:53,533 INFO L226 Difference]: Without dead ends: 601 [2019-12-27 14:36:53,534 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:36:53,562 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2019-12-27 14:36:53,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 601. [2019-12-27 14:36:53,625 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 601 states. [2019-12-27 14:36:53,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 601 states to 601 states and 1776 transitions. [2019-12-27 14:36:53,630 INFO L78 Accepts]: Start accepts. Automaton has 601 states and 1776 transitions. Word has length 31 [2019-12-27 14:36:53,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:36:53,631 INFO L462 AbstractCegarLoop]: Abstraction has 601 states and 1776 transitions. [2019-12-27 14:36:53,631 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-27 14:36:53,631 INFO L276 IsEmpty]: Start isEmpty. Operand 601 states and 1776 transitions. [2019-12-27 14:36:53,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2019-12-27 14:36:53,634 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:36:53,634 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] [2019-12-27 14:36:53,634 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:36:53,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:36:53,635 INFO L82 PathProgramCache]: Analyzing trace with hash -1152838682, now seen corresponding path program 1 times [2019-12-27 14:36:53,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:36:53,635 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402921474] [2019-12-27 14:36:53,636 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:36:53,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:36:53,848 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 14:36:53,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [402921474] [2019-12-27 14:36:53,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:36:53,849 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-27 14:36:53,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789538145] [2019-12-27 14:36:53,851 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-27 14:36:53,852 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:36:53,852 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-27 14:36:53,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-27 14:36:53,853 INFO L87 Difference]: Start difference. First operand 601 states and 1776 transitions. Second operand 5 states. [2019-12-27 14:36:53,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:36:53,917 INFO L93 Difference]: Finished difference Result 601 states and 1695 transitions. [2019-12-27 14:36:53,918 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-27 14:36:53,918 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 32 [2019-12-27 14:36:53,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:36:53,923 INFO L225 Difference]: With dead ends: 601 [2019-12-27 14:36:53,923 INFO L226 Difference]: Without dead ends: 538 [2019-12-27 14:36:53,924 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:36:53,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 538 states. [2019-12-27 14:36:53,952 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 538 to 538. [2019-12-27 14:36:53,952 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 538 states. [2019-12-27 14:36:53,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 538 states to 538 states and 1545 transitions. [2019-12-27 14:36:53,955 INFO L78 Accepts]: Start accepts. Automaton has 538 states and 1545 transitions. Word has length 32 [2019-12-27 14:36:53,955 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:36:53,956 INFO L462 AbstractCegarLoop]: Abstraction has 538 states and 1545 transitions. [2019-12-27 14:36:53,956 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-27 14:36:53,956 INFO L276 IsEmpty]: Start isEmpty. Operand 538 states and 1545 transitions. [2019-12-27 14:36:53,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2019-12-27 14:36:53,958 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:36:53,958 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] [2019-12-27 14:36:53,958 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:36:53,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:36:53,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1131850048, now seen corresponding path program 1 times [2019-12-27 14:36:53,959 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:36:53,959 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066843441] [2019-12-27 14:36:53,959 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:36:53,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:36:54,130 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 14:36:54,131 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066843441] [2019-12-27 14:36:54,131 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:36:54,131 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-27 14:36:54,131 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013658641] [2019-12-27 14:36:54,132 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-27 14:36:54,132 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:36:54,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-27 14:36:54,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-27 14:36:54,133 INFO L87 Difference]: Start difference. First operand 538 states and 1545 transitions. Second operand 6 states. [2019-12-27 14:36:54,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:36:54,221 INFO L93 Difference]: Finished difference Result 403 states and 1059 transitions. [2019-12-27 14:36:54,221 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-27 14:36:54,222 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 33 [2019-12-27 14:36:54,222 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:36:54,225 INFO L225 Difference]: With dead ends: 403 [2019-12-27 14:36:54,225 INFO L226 Difference]: Without dead ends: 349 [2019-12-27 14:36:54,225 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-27 14:36:54,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 349 states. [2019-12-27 14:36:54,238 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 349 to 349. [2019-12-27 14:36:54,239 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2019-12-27 14:36:54,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 915 transitions. [2019-12-27 14:36:54,241 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 915 transitions. Word has length 33 [2019-12-27 14:36:54,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:36:54,241 INFO L462 AbstractCegarLoop]: Abstraction has 349 states and 915 transitions. [2019-12-27 14:36:54,242 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-27 14:36:54,242 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 915 transitions. [2019-12-27 14:36:54,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:36:54,245 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:36:54,246 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] [2019-12-27 14:36:54,246 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:36:54,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:36:54,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1370796524, now seen corresponding path program 1 times [2019-12-27 14:36:54,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:36:54,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767415970] [2019-12-27 14:36:54,248 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:36:54,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:36:54,474 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 14:36:54,474 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767415970] [2019-12-27 14:36:54,474 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:36:54,475 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:36:54,475 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012246371] [2019-12-27 14:36:54,475 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:36:54,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:36:54,477 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:36:54,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:36:54,478 INFO L87 Difference]: Start difference. First operand 349 states and 915 transitions. Second operand 7 states. [2019-12-27 14:36:54,650 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:36:54,651 INFO L93 Difference]: Finished difference Result 574 states and 1521 transitions. [2019-12-27 14:36:54,651 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:36:54,651 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 14:36:54,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:36:54,655 INFO L225 Difference]: With dead ends: 574 [2019-12-27 14:36:54,655 INFO L226 Difference]: Without dead ends: 289 [2019-12-27 14:36:54,657 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:36:54,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 289 states. [2019-12-27 14:36:54,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 289 to 280. [2019-12-27 14:36:54,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-12-27 14:36:54,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 726 transitions. [2019-12-27 14:36:54,674 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 726 transitions. Word has length 34 [2019-12-27 14:36:54,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:36:54,675 INFO L462 AbstractCegarLoop]: Abstraction has 280 states and 726 transitions. [2019-12-27 14:36:54,675 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:36:54,675 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 726 transitions. [2019-12-27 14:36:54,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-27 14:36:54,677 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 14:36:54,677 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] [2019-12-27 14:36:54,677 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 14:36:54,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 14:36:54,678 INFO L82 PathProgramCache]: Analyzing trace with hash 332629140, now seen corresponding path program 2 times [2019-12-27 14:36:54,678 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 14:36:54,678 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704535098] [2019-12-27 14:36:54,679 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 14:36:54,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 14:36:54,842 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 14:36:54,843 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704535098] [2019-12-27 14:36:54,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 14:36:54,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-27 14:36:54,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1542719591] [2019-12-27 14:36:54,844 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-27 14:36:54,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 14:36:54,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-27 14:36:54,845 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-27 14:36:54,845 INFO L87 Difference]: Start difference. First operand 280 states and 726 transitions. Second operand 7 states. [2019-12-27 14:36:55,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 14:36:55,011 INFO L93 Difference]: Finished difference Result 235 states and 585 transitions. [2019-12-27 14:36:55,011 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-27 14:36:55,012 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2019-12-27 14:36:55,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 14:36:55,012 INFO L225 Difference]: With dead ends: 235 [2019-12-27 14:36:55,012 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 14:36:55,013 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-27 14:36:55,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 14:36:55,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 14:36:55,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 14:36:55,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 14:36:55,014 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2019-12-27 14:36:55,015 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 14:36:55,016 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 14:36:55,016 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-27 14:36:55,016 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 14:36:55,016 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 14:36:55,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 02:36:55 BasicIcfg [2019-12-27 14:36:55,022 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 14:36:55,030 INFO L168 Benchmark]: Toolchain (without parser) took 3533.50 ms. Allocated memory was 144.7 MB in the beginning and 250.1 MB in the end (delta: 105.4 MB). Free memory was 100.0 MB in the beginning and 198.5 MB in the end (delta: -98.5 MB). Peak memory consumption was 6.9 MB. Max. memory is 7.1 GB. [2019-12-27 14:36:55,032 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. [2019-12-27 14:36:55,034 INFO L168 Benchmark]: CACSL2BoogieTranslator took 714.11 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 160.5 MB in the end (delta: -60.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. [2019-12-27 14:36:55,040 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.19 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 157.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-27 14:36:55,041 INFO L168 Benchmark]: Boogie Preprocessor took 24.27 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:36:55,047 INFO L168 Benchmark]: RCFGBuilder took 409.97 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 136.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. [2019-12-27 14:36:55,048 INFO L168 Benchmark]: TraceAbstraction took 2327.28 ms. Allocated memory was 203.4 MB in the beginning and 250.1 MB in the end (delta: 46.7 MB). Free memory was 135.5 MB in the beginning and 198.5 MB in the end (delta: -63.0 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 14:36:55,057 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 144.7 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.9 kB). Peak memory consumption was 209.9 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 714.11 ms. Allocated memory was 144.7 MB in the beginning and 203.4 MB in the end (delta: 58.7 MB). Free memory was 99.6 MB in the beginning and 160.5 MB in the end (delta: -60.9 MB). Peak memory consumption was 20.1 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.19 ms. Allocated memory is still 203.4 MB. Free memory was 160.5 MB in the beginning and 157.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.27 ms. Allocated memory is still 203.4 MB. Free memory was 157.8 MB in the beginning and 156.5 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 409.97 ms. Allocated memory is still 203.4 MB. Free memory was 156.5 MB in the beginning and 136.2 MB in the end (delta: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2327.28 ms. Allocated memory was 203.4 MB in the beginning and 250.1 MB in the end (delta: 46.7 MB). Free memory was 135.5 MB in the beginning and 198.5 MB in the end (delta: -63.0 MB). There was no memory consumed. 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, 54 locations, 1 error locations. Result: SAFE, OverallTime: 2.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 246 SDtfs, 328 SDslu, 613 SDs, 0 SdLazy, 92 SolverSat, 40 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 43 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1248occurred 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, 9 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 164 NumberOfCodeBlocks, 164 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 159 ConstructedInterpolants, 0 QuantifiedInterpolants, 14313 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...