/usr/bin/java -Xmx16000000000 -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/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/safe034_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-11 18:46:41,883 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-11 18:46:41,886 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-11 18:46:41,918 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-11 18:46:41,918 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-11 18:46:41,927 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-11 18:46:41,930 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-11 18:46:41,935 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-11 18:46:41,938 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-11 18:46:41,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-11 18:46:41,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-11 18:46:41,944 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-11 18:46:41,944 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-11 18:46:41,947 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-11 18:46:41,950 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-11 18:46:41,952 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-11 18:46:41,953 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-11 18:46:41,955 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-11 18:46:41,956 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-11 18:46:41,966 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-11 18:46:41,969 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-11 18:46:41,970 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-11 18:46:41,971 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-11 18:46:41,972 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-11 18:46:41,983 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-10-11 18:46:41,988 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-11 18:46:41,989 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-11 18:46:41,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-11 18:46:41,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-11 18:46:41,997 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-11 18:46:41,997 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-11 18:46:41,999 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-11 18:46:41,999 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-11 18:46:41,999 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-11 18:46:42,001 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-11 18:46:42,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-11 18:46:42,004 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-11 18:46:42,050 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-11 18:46:42,050 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-11 18:46:42,051 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-11 18:46:42,052 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-11 18:46:42,052 INFO L138 SettingsManager]: * Use SBE=true [2020-10-11 18:46:42,052 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-11 18:46:42,052 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-11 18:46:42,052 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-11 18:46:42,053 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-11 18:46:42,053 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-11 18:46:42,053 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-11 18:46:42,053 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-11 18:46:42,053 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-11 18:46:42,054 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-11 18:46:42,054 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-11 18:46:42,054 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-11 18:46:42,054 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-11 18:46:42,054 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-11 18:46:42,055 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-11 18:46:42,055 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-11 18:46:42,055 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-11 18:46:42,055 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-11 18:46:42,055 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-11 18:46:42,056 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-11 18:46:42,056 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-11 18:46:42,056 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-11 18:46:42,056 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-11 18:46:42,056 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-11 18:46:42,057 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-11 18:46:42,057 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-11 18:46:42,358 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-11 18:46:42,372 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-11 18:46:42,376 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-11 18:46:42,377 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-11 18:46:42,378 INFO L275 PluginConnector]: CDTParser initialized [2020-10-11 18:46:42,379 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe034_pso.opt.i [2020-10-11 18:46:42,447 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdac97b9/e34f8fe2de4a477b9550cd8700da40db/FLAG8cabdddf9 [2020-10-11 18:46:43,044 INFO L306 CDTParser]: Found 1 translation units. [2020-10-11 18:46:43,045 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe034_pso.opt.i [2020-10-11 18:46:43,065 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdac97b9/e34f8fe2de4a477b9550cd8700da40db/FLAG8cabdddf9 [2020-10-11 18:46:43,336 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8fdac97b9/e34f8fe2de4a477b9550cd8700da40db [2020-10-11 18:46:43,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-11 18:46:43,350 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-11 18:46:43,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-11 18:46:43,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-11 18:46:43,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-11 18:46:43,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:46:43" (1/1) ... [2020-10-11 18:46:43,364 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54787505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:43, skipping insertion in model container [2020-10-11 18:46:43,364 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 11.10 06:46:43" (1/1) ... [2020-10-11 18:46:43,375 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-11 18:46:43,453 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-11 18:46:44,023 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:46:44,045 INFO L203 MainTranslator]: Completed pre-run [2020-10-11 18:46:44,135 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-11 18:46:44,210 INFO L208 MainTranslator]: Completed translation [2020-10-11 18:46:44,211 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44 WrapperNode [2020-10-11 18:46:44,211 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-11 18:46:44,212 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-11 18:46:44,213 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-11 18:46:44,213 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-11 18:46:44,223 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,244 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-11 18:46:44,278 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-11 18:46:44,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-11 18:46:44,278 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-11 18:46:44,290 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,307 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,307 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,328 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (1/1) ... [2020-10-11 18:46:44,337 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-11 18:46:44,338 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-11 18:46:44,338 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-11 18:46:44,338 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-11 18:46:44,339 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (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 [2020-10-11 18:46:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-11 18:46:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-11 18:46:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-11 18:46:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-11 18:46:44,429 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-11 18:46:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-11 18:46:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-11 18:46:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-11 18:46:44,430 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-11 18:46:44,430 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-11 18:46:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-11 18:46:44,431 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-11 18:46:44,431 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-11 18:46:44,433 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-11 18:46:46,238 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-11 18:46:46,239 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-11 18:46:46,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:46:46 BoogieIcfgContainer [2020-10-11 18:46:46,242 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-11 18:46:46,243 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-11 18:46:46,243 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-11 18:46:46,247 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-11 18:46:46,247 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 11.10 06:46:43" (1/3) ... [2020-10-11 18:46:46,248 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780859ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:46:46, skipping insertion in model container [2020-10-11 18:46:46,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 11.10 06:46:44" (2/3) ... [2020-10-11 18:46:46,249 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@780859ce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.10 06:46:46, skipping insertion in model container [2020-10-11 18:46:46,249 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.10 06:46:46" (3/3) ... [2020-10-11 18:46:46,251 INFO L111 eAbstractionObserver]: Analyzing ICFG safe034_pso.opt.i [2020-10-11 18:46:46,264 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-11 18:46:46,273 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-11 18:46:46,274 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-11 18:46:46,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,307 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,308 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,308 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,308 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,309 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,309 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,309 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,310 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,310 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,311 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,312 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,313 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,314 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,315 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,316 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,317 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,319 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,320 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,320 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,320 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,321 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,321 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,322 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,323 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,324 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,328 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,329 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,329 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,332 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,333 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,334 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,334 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,335 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,336 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,337 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,337 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,339 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,340 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,340 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,341 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,341 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,342 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-11 18:46:46,361 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-11 18:46:46,385 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-11 18:46:46,385 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-11 18:46:46,386 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-11 18:46:46,386 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-11 18:46:46,386 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-11 18:46:46,386 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-11 18:46:46,386 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-11 18:46:46,387 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-11 18:46:46,402 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-11 18:46:46,450 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-11 18:46:46,451 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:46:46,456 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 61 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 58. Up to 2 conditions per place. [2020-10-11 18:46:46,457 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 91 transitions, 197 flow [2020-10-11 18:46:46,467 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 88 transitions, 185 flow [2020-10-11 18:46:46,505 INFO L129 PetriNetUnfolder]: 0/58 cut-off events. [2020-10-11 18:46:46,505 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:46:46,506 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:46,507 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:46,507 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:46,517 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:46,517 INFO L82 PathProgramCache]: Analyzing trace with hash 784584773, now seen corresponding path program 1 times [2020-10-11 18:46:46,531 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:46,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1080687642] [2020-10-11 18:46:46,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:46,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:46:46,984 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:46:46,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1080687642] [2020-10-11 18:46:46,988 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:46:46,988 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-10-11 18:46:46,989 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486980168] [2020-10-11 18:46:47,003 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-11 18:46:47,004 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:46:47,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-11 18:46:47,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-11 18:46:47,116 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 91 [2020-10-11 18:46:47,120 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 185 flow. Second operand 3 states. [2020-10-11 18:46:47,120 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:46:47,120 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 91 [2020-10-11 18:46:47,122 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:46:47,166 INFO L129 PetriNetUnfolder]: 0/85 cut-off events. [2020-10-11 18:46:47,167 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:46:47,167 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 0/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 54 event pairs, 0 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-11 18:46:47,169 INFO L132 encePairwiseOnDemand]: 86/91 looper letters, 0 selfloop transitions, 2 changer transitions 11/85 dead transitions. [2020-10-11 18:46:47,170 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 85 transitions, 183 flow [2020-10-11 18:46:47,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-11 18:46:47,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-11 18:46:47,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2020-10-11 18:46:47,196 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9706959706959707 [2020-10-11 18:46:47,197 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2020-10-11 18:46:47,198 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2020-10-11 18:46:47,203 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:46:47,206 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2020-10-11 18:46:47,215 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-11 18:46:47,228 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-11 18:46:47,228 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-11 18:46:47,231 INFO L185 Difference]: Start difference. First operand has 96 places, 88 transitions, 185 flow. Second operand 3 states and 265 transitions. [2020-10-11 18:46:47,232 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 85 transitions, 183 flow [2020-10-11 18:46:47,236 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 85 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-11 18:46:47,240 INFO L241 Difference]: Finished difference. Result has 94 places, 74 transitions, 158 flow [2020-10-11 18:46:47,244 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=94, PETRI_TRANSITIONS=74} [2020-10-11 18:46:47,245 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, -2 predicate places. [2020-10-11 18:46:47,245 INFO L481 AbstractCegarLoop]: Abstraction has has 94 places, 74 transitions, 158 flow [2020-10-11 18:46:47,245 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-11 18:46:47,246 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:47,246 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:47,246 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-11 18:46:47,247 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:47,247 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:47,247 INFO L82 PathProgramCache]: Analyzing trace with hash 1990801791, now seen corresponding path program 1 times [2020-10-11 18:46:47,247 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:47,248 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679556982] [2020-10-11 18:46:47,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:46:47,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:46:47,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679556982] [2020-10-11 18:46:47,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:46:47,454 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:46:47,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971188183] [2020-10-11 18:46:47,455 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:46:47,456 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:46:47,456 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:46:47,456 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:46:47,695 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2020-10-11 18:46:47,696 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 74 transitions, 158 flow. Second operand 6 states. [2020-10-11 18:46:47,696 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:46:47,696 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2020-10-11 18:46:47,696 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:46:47,904 INFO L129 PetriNetUnfolder]: 24/155 cut-off events. [2020-10-11 18:46:47,904 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-11 18:46:47,907 INFO L80 FinitePrefix]: Finished finitePrefix Result has 226 conditions, 155 events. 24/155 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 480 event pairs, 5 based on Foata normal form. 4/157 useless extension candidates. Maximal degree in co-relation 184. Up to 31 conditions per place. [2020-10-11 18:46:47,909 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 8 selfloop transitions, 3 changer transitions 19/95 dead transitions. [2020-10-11 18:46:47,909 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 91 places, 95 transitions, 260 flow [2020-10-11 18:46:47,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:46:47,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:46:47,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 752 transitions. [2020-10-11 18:46:47,916 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9181929181929182 [2020-10-11 18:46:47,917 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 752 transitions. [2020-10-11 18:46:47,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 752 transitions. [2020-10-11 18:46:47,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:46:47,918 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 752 transitions. [2020-10-11 18:46:47,920 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:46:47,925 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:46:47,926 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:46:47,927 INFO L185 Difference]: Start difference. First operand has 94 places, 74 transitions, 158 flow. Second operand 9 states and 752 transitions. [2020-10-11 18:46:47,927 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 91 places, 95 transitions, 260 flow [2020-10-11 18:46:47,930 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 95 transitions, 256 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-11 18:46:47,935 INFO L241 Difference]: Finished difference. Result has 96 places, 76 transitions, 197 flow [2020-10-11 18:46:47,936 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=197, PETRI_PLACES=96, PETRI_TRANSITIONS=76} [2020-10-11 18:46:47,937 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 0 predicate places. [2020-10-11 18:46:47,937 INFO L481 AbstractCegarLoop]: Abstraction has has 96 places, 76 transitions, 197 flow [2020-10-11 18:46:47,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:46:47,937 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:47,938 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:47,938 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-11 18:46:47,938 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:47,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:47,938 INFO L82 PathProgramCache]: Analyzing trace with hash 2074152000, now seen corresponding path program 1 times [2020-10-11 18:46:47,939 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:47,940 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1530632407] [2020-10-11 18:46:47,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:47,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:46:48,102 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:46:48,103 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1530632407] [2020-10-11 18:46:48,103 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:46:48,103 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:46:48,104 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325309087] [2020-10-11 18:46:48,104 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:46:48,105 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:46:48,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:46:48,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:46:48,248 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2020-10-11 18:46:48,248 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 76 transitions, 197 flow. Second operand 6 states. [2020-10-11 18:46:48,248 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:46:48,248 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2020-10-11 18:46:48,249 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:46:48,445 INFO L129 PetriNetUnfolder]: 140/427 cut-off events. [2020-10-11 18:46:48,445 INFO L130 PetriNetUnfolder]: For 196/196 co-relation queries the response was YES. [2020-10-11 18:46:48,449 INFO L80 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 427 events. 140/427 cut-off events. For 196/196 co-relation queries the response was YES. Maximal size of possible extension queue 52. Compared 2337 event pairs, 14 based on Foata normal form. 10/416 useless extension candidates. Maximal degree in co-relation 805. Up to 104 conditions per place. [2020-10-11 18:46:48,452 INFO L132 encePairwiseOnDemand]: 82/91 looper letters, 17 selfloop transitions, 14 changer transitions 4/101 dead transitions. [2020-10-11 18:46:48,453 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 98 places, 101 transitions, 317 flow [2020-10-11 18:46:48,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-11 18:46:48,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-10-11 18:46:48,455 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 739 transitions. [2020-10-11 18:46:48,456 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9023199023199023 [2020-10-11 18:46:48,456 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 739 transitions. [2020-10-11 18:46:48,456 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 739 transitions. [2020-10-11 18:46:48,457 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:46:48,457 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 739 transitions. [2020-10-11 18:46:48,459 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 10 states. [2020-10-11 18:46:48,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 10 states. [2020-10-11 18:46:48,461 INFO L81 ComplementDD]: Finished complementDD. Result 10 states. [2020-10-11 18:46:48,461 INFO L185 Difference]: Start difference. First operand has 96 places, 76 transitions, 197 flow. Second operand 9 states and 739 transitions. [2020-10-11 18:46:48,462 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 98 places, 101 transitions, 317 flow [2020-10-11 18:46:48,465 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 101 transitions, 308 flow, removed 3 selfloop flow, removed 4 redundant places. [2020-10-11 18:46:48,468 INFO L241 Difference]: Finished difference. Result has 99 places, 88 transitions, 288 flow [2020-10-11 18:46:48,469 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=188, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=288, PETRI_PLACES=99, PETRI_TRANSITIONS=88} [2020-10-11 18:46:48,469 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 3 predicate places. [2020-10-11 18:46:48,469 INFO L481 AbstractCegarLoop]: Abstraction has has 99 places, 88 transitions, 288 flow [2020-10-11 18:46:48,469 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:46:48,469 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:48,470 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:48,470 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-11 18:46:48,470 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:48,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:48,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1842807009, now seen corresponding path program 1 times [2020-10-11 18:46:48,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:48,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623163461] [2020-10-11 18:46:48,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:48,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:46:48,602 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:46:48,603 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623163461] [2020-10-11 18:46:48,603 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:46:48,603 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:46:48,604 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299717280] [2020-10-11 18:46:48,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:46:48,605 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:46:48,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:46:48,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:46:48,814 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2020-10-11 18:46:48,815 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 88 transitions, 288 flow. Second operand 7 states. [2020-10-11 18:46:48,815 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:46:48,815 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2020-10-11 18:46:48,816 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:46:49,093 INFO L129 PetriNetUnfolder]: 118/383 cut-off events. [2020-10-11 18:46:49,094 INFO L130 PetriNetUnfolder]: For 707/820 co-relation queries the response was YES. [2020-10-11 18:46:49,096 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1158 conditions, 383 events. 118/383 cut-off events. For 707/820 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 2024 event pairs, 4 based on Foata normal form. 34/400 useless extension candidates. Maximal degree in co-relation 1105. Up to 125 conditions per place. [2020-10-11 18:46:49,099 INFO L132 encePairwiseOnDemand]: 82/91 looper letters, 15 selfloop transitions, 27 changer transitions 8/116 dead transitions. [2020-10-11 18:46:49,099 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 116 transitions, 569 flow [2020-10-11 18:46:49,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-11 18:46:49,100 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-11 18:46:49,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 984 transitions. [2020-10-11 18:46:49,103 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9010989010989011 [2020-10-11 18:46:49,104 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 984 transitions. [2020-10-11 18:46:49,104 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 984 transitions. [2020-10-11 18:46:49,105 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:46:49,105 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 984 transitions. [2020-10-11 18:46:49,107 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-11 18:46:49,110 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-11 18:46:49,110 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-11 18:46:49,111 INFO L185 Difference]: Start difference. First operand has 99 places, 88 transitions, 288 flow. Second operand 12 states and 984 transitions. [2020-10-11 18:46:49,111 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 116 transitions, 569 flow [2020-10-11 18:46:49,115 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 109 places, 116 transitions, 567 flow, removed 0 selfloop flow, removed 1 redundant places. [2020-10-11 18:46:49,118 INFO L241 Difference]: Finished difference. Result has 114 places, 104 transitions, 499 flow [2020-10-11 18:46:49,118 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=88, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=499, PETRI_PLACES=114, PETRI_TRANSITIONS=104} [2020-10-11 18:46:49,119 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 18 predicate places. [2020-10-11 18:46:49,119 INFO L481 AbstractCegarLoop]: Abstraction has has 114 places, 104 transitions, 499 flow [2020-10-11 18:46:49,119 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:46:49,119 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:49,119 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:49,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-11 18:46:49,120 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:49,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:49,120 INFO L82 PathProgramCache]: Analyzing trace with hash -2067870853, now seen corresponding path program 1 times [2020-10-11 18:46:49,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:49,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008534217] [2020-10-11 18:46:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:46:49,301 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:46:49,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008534217] [2020-10-11 18:46:49,302 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:46:49,302 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-10-11 18:46:49,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126923682] [2020-10-11 18:46:49,303 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-11 18:46:49,304 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:46:49,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-11 18:46:49,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-10-11 18:46:49,509 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2020-10-11 18:46:49,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 104 transitions, 499 flow. Second operand 8 states. [2020-10-11 18:46:49,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:46:49,511 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2020-10-11 18:46:49,511 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:46:49,869 INFO L129 PetriNetUnfolder]: 81/317 cut-off events. [2020-10-11 18:46:49,869 INFO L130 PetriNetUnfolder]: For 1085/1230 co-relation queries the response was YES. [2020-10-11 18:46:49,871 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1210 conditions, 317 events. 81/317 cut-off events. For 1085/1230 co-relation queries the response was YES. Maximal size of possible extension queue 51. Compared 1735 event pairs, 0 based on Foata normal form. 35/336 useless extension candidates. Maximal degree in co-relation 1150. Up to 97 conditions per place. [2020-10-11 18:46:49,873 INFO L132 encePairwiseOnDemand]: 82/91 looper letters, 10 selfloop transitions, 32 changer transitions 15/123 dead transitions. [2020-10-11 18:46:49,873 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 123 transitions, 751 flow [2020-10-11 18:46:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-11 18:46:49,874 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-11 18:46:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1217 transitions. [2020-10-11 18:46:49,878 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8915750915750916 [2020-10-11 18:46:49,879 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1217 transitions. [2020-10-11 18:46:49,879 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1217 transitions. [2020-10-11 18:46:49,880 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:46:49,880 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1217 transitions. [2020-10-11 18:46:49,884 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-11 18:46:49,887 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-11 18:46:49,888 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-11 18:46:49,888 INFO L185 Difference]: Start difference. First operand has 114 places, 104 transitions, 499 flow. Second operand 15 states and 1217 transitions. [2020-10-11 18:46:49,888 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 123 transitions, 751 flow [2020-10-11 18:46:49,897 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 123 transitions, 663 flow, removed 37 selfloop flow, removed 7 redundant places. [2020-10-11 18:46:49,900 INFO L241 Difference]: Finished difference. Result has 127 places, 105 transitions, 519 flow [2020-10-11 18:46:49,900 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=419, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=519, PETRI_PLACES=127, PETRI_TRANSITIONS=105} [2020-10-11 18:46:49,901 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 31 predicate places. [2020-10-11 18:46:49,901 INFO L481 AbstractCegarLoop]: Abstraction has has 127 places, 105 transitions, 519 flow [2020-10-11 18:46:49,901 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-11 18:46:49,901 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:49,901 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:49,902 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-11 18:46:49,902 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:49,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:49,902 INFO L82 PathProgramCache]: Analyzing trace with hash 1424150685, now seen corresponding path program 1 times [2020-10-11 18:46:49,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:49,903 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678807164] [2020-10-11 18:46:49,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:49,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:46:50,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:46:50,113 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678807164] [2020-10-11 18:46:50,114 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:46:50,114 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-11 18:46:50,114 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854680471] [2020-10-11 18:46:50,115 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-11 18:46:50,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:46:50,115 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-11 18:46:50,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-10-11 18:46:50,344 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2020-10-11 18:46:50,345 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 127 places, 105 transitions, 519 flow. Second operand 7 states. [2020-10-11 18:46:50,345 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:46:50,346 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2020-10-11 18:46:50,346 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:46:50,549 INFO L129 PetriNetUnfolder]: 82/407 cut-off events. [2020-10-11 18:46:50,549 INFO L130 PetriNetUnfolder]: For 1139/1186 co-relation queries the response was YES. [2020-10-11 18:46:50,553 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1294 conditions, 407 events. 82/407 cut-off events. For 1139/1186 co-relation queries the response was YES. Maximal size of possible extension queue 64. Compared 2652 event pairs, 0 based on Foata normal form. 1/378 useless extension candidates. Maximal degree in co-relation 1237. Up to 63 conditions per place. [2020-10-11 18:46:50,556 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 9 selfloop transitions, 2 changer transitions 4/110 dead transitions. [2020-10-11 18:46:50,556 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 131 places, 110 transitions, 559 flow [2020-10-11 18:46:50,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-11 18:46:50,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-11 18:46:50,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 569 transitions. [2020-10-11 18:46:50,561 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8932496075353218 [2020-10-11 18:46:50,561 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 569 transitions. [2020-10-11 18:46:50,561 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 569 transitions. [2020-10-11 18:46:50,562 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:46:50,562 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 569 transitions. [2020-10-11 18:46:50,565 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-11 18:46:50,567 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-11 18:46:50,568 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-11 18:46:50,568 INFO L185 Difference]: Start difference. First operand has 127 places, 105 transitions, 519 flow. Second operand 7 states and 569 transitions. [2020-10-11 18:46:50,568 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 131 places, 110 transitions, 559 flow [2020-10-11 18:46:50,581 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 116 places, 110 transitions, 462 flow, removed 15 selfloop flow, removed 15 redundant places. [2020-10-11 18:46:50,586 INFO L241 Difference]: Finished difference. Result has 121 places, 106 transitions, 441 flow [2020-10-11 18:46:50,587 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=422, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=441, PETRI_PLACES=121, PETRI_TRANSITIONS=106} [2020-10-11 18:46:50,587 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 25 predicate places. [2020-10-11 18:46:50,587 INFO L481 AbstractCegarLoop]: Abstraction has has 121 places, 106 transitions, 441 flow [2020-10-11 18:46:50,587 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-11 18:46:50,587 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:50,587 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:50,588 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-11 18:46:50,588 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:50,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:50,588 INFO L82 PathProgramCache]: Analyzing trace with hash -379155265, now seen corresponding path program 2 times [2020-10-11 18:46:50,589 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:50,589 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1386205794] [2020-10-11 18:46:50,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:50,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-11 18:46:50,840 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-11 18:46:50,840 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1386205794] [2020-10-11 18:46:50,841 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-11 18:46:50,841 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-11 18:46:50,841 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [947080836] [2020-10-11 18:46:50,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-11 18:46:50,842 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-11 18:46:50,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-11 18:46:50,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-11 18:46:50,973 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2020-10-11 18:46:50,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 121 places, 106 transitions, 441 flow. Second operand 6 states. [2020-10-11 18:46:50,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-11 18:46:50,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2020-10-11 18:46:50,975 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-11 18:46:51,120 INFO L129 PetriNetUnfolder]: 134/634 cut-off events. [2020-10-11 18:46:51,121 INFO L130 PetriNetUnfolder]: For 838/864 co-relation queries the response was YES. [2020-10-11 18:46:51,124 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1693 conditions, 634 events. 134/634 cut-off events. For 838/864 co-relation queries the response was YES. Maximal size of possible extension queue 105. Compared 5107 event pairs, 0 based on Foata normal form. 1/589 useless extension candidates. Maximal degree in co-relation 1669. Up to 96 conditions per place. [2020-10-11 18:46:51,126 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 7 selfloop transitions, 2 changer transitions 30/110 dead transitions. [2020-10-11 18:46:51,126 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 123 places, 110 transitions, 485 flow [2020-10-11 18:46:51,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-11 18:46:51,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-11 18:46:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 495 transitions. [2020-10-11 18:46:51,128 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9065934065934066 [2020-10-11 18:46:51,129 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 495 transitions. [2020-10-11 18:46:51,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 495 transitions. [2020-10-11 18:46:51,129 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-11 18:46:51,130 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 495 transitions. [2020-10-11 18:46:51,131 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-11 18:46:51,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-11 18:46:51,133 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-11 18:46:51,133 INFO L185 Difference]: Start difference. First operand has 121 places, 106 transitions, 441 flow. Second operand 6 states and 495 transitions. [2020-10-11 18:46:51,133 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 123 places, 110 transitions, 485 flow [2020-10-11 18:46:51,144 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 119 places, 110 transitions, 474 flow, removed 5 selfloop flow, removed 4 redundant places. [2020-10-11 18:46:51,146 INFO L241 Difference]: Finished difference. Result has 123 places, 80 transitions, 264 flow [2020-10-11 18:46:51,147 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=114, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=106, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=104, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=264, PETRI_PLACES=123, PETRI_TRANSITIONS=80} [2020-10-11 18:46:51,147 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 27 predicate places. [2020-10-11 18:46:51,147 INFO L481 AbstractCegarLoop]: Abstraction has has 123 places, 80 transitions, 264 flow [2020-10-11 18:46:51,148 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-11 18:46:51,148 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-11 18:46:51,148 INFO L255 CegarLoopForPetriNet]: 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] [2020-10-11 18:46:51,148 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-11 18:46:51,148 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-11 18:46:51,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-11 18:46:51,149 INFO L82 PathProgramCache]: Analyzing trace with hash 1902325593, now seen corresponding path program 3 times [2020-10-11 18:46:51,149 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-11 18:46:51,149 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814291449] [2020-10-11 18:46:51,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-11 18:46:51,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 18:46:51,194 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 18:46:51,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-11 18:46:51,232 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-11 18:46:51,310 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-11 18:46:51,310 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-11 18:46:51,311 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-11 18:46:51,358 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,359 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,360 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,360 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,360 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,360 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,361 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,361 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,361 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,361 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,362 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,362 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,362 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,362 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,362 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,363 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,363 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,363 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,363 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,363 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,364 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,364 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,364 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,364 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,364 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,364 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,365 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,365 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,365 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,365 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,366 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,366 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,366 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,366 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,366 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,367 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,367 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,367 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,368 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,368 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,369 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,369 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,369 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,369 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,369 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,369 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,370 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,370 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,370 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-11 18:46:51,370 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-11 18:46:51,499 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.10 06:46:51 BasicIcfg [2020-10-11 18:46:51,499 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-11 18:46:51,502 INFO L168 Benchmark]: Toolchain (without parser) took 8151.16 ms. Allocated memory was 251.1 MB in the beginning and 426.8 MB in the end (delta: 175.6 MB). Free memory was 206.4 MB in the beginning and 178.8 MB in the end (delta: 27.6 MB). Peak memory consumption was 203.2 MB. Max. memory is 14.2 GB. [2020-10-11 18:46:51,503 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 251.1 MB. Free memory was 229.2 MB in the beginning and 228.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. [2020-10-11 18:46:51,504 INFO L168 Benchmark]: CACSL2BoogieTranslator took 857.81 ms. Allocated memory was 251.1 MB in the beginning and 315.1 MB in the end (delta: 64.0 MB). Free memory was 205.5 MB in the beginning and 265.9 MB in the end (delta: -60.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:46:51,505 INFO L168 Benchmark]: Boogie Procedure Inliner took 65.37 ms. Allocated memory is still 315.1 MB. Free memory was 265.9 MB in the beginning and 263.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:46:51,506 INFO L168 Benchmark]: Boogie Preprocessor took 59.45 ms. Allocated memory is still 315.1 MB. Free memory was 263.4 MB in the beginning and 260.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:46:51,507 INFO L168 Benchmark]: RCFGBuilder took 1904.06 ms. Allocated memory was 315.1 MB in the beginning and 357.0 MB in the end (delta: 41.9 MB). Free memory was 260.9 MB in the beginning and 238.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 99.7 MB. Max. memory is 14.2 GB. [2020-10-11 18:46:51,508 INFO L168 Benchmark]: TraceAbstraction took 5256.17 ms. Allocated memory was 357.0 MB in the beginning and 426.8 MB in the end (delta: 69.7 MB). Free memory was 238.6 MB in the beginning and 178.8 MB in the end (delta: 59.8 MB). Peak memory consumption was 129.5 MB. Max. memory is 14.2 GB. [2020-10-11 18:46:51,512 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 251.1 MB. Free memory was 229.2 MB in the beginning and 228.4 MB in the end (delta: 839.0 kB). Peak memory consumption was 839.0 kB. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 857.81 ms. Allocated memory was 251.1 MB in the beginning and 315.1 MB in the end (delta: 64.0 MB). Free memory was 205.5 MB in the beginning and 265.9 MB in the end (delta: -60.3 MB). Peak memory consumption was 33.5 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 65.37 ms. Allocated memory is still 315.1 MB. Free memory was 265.9 MB in the beginning and 263.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 59.45 ms. Allocated memory is still 315.1 MB. Free memory was 263.4 MB in the beginning and 260.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1904.06 ms. Allocated memory was 315.1 MB in the beginning and 357.0 MB in the end (delta: 41.9 MB). Free memory was 260.9 MB in the beginning and 238.6 MB in the end (delta: 22.2 MB). Peak memory consumption was 99.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 5256.17 ms. Allocated memory was 357.0 MB in the beginning and 426.8 MB in the end (delta: 69.7 MB). Free memory was 238.6 MB in the beginning and 178.8 MB in the end (delta: 59.8 MB). Peak memory consumption was 129.5 MB. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L700] 0 int __unbuffered_p0_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0] [L702] 0 int __unbuffered_p1_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0] [L703] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0] [L704] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L706] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L708] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L709] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L710] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L711] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L712] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L713] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L714] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L715] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L716] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L717] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L718] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L719] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L720] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L721] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L722] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L723] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L724] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L726] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L727] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L728] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L816] 0 pthread_t t2586; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L817] FCALL, FORK 0 pthread_create(&t2586, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L818] 0 pthread_t t2587; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L819] FCALL, FORK 0 pthread_create(&t2587, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L820] 0 pthread_t t2588; VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L821] FCALL, FORK 0 pthread_create(&t2588, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L779] 3 y$w_buff1 = y$w_buff0 [L780] 3 y$w_buff0 = 1 [L781] 3 y$w_buff1_used = y$w_buff0_used [L782] 3 y$w_buff0_used = (_Bool)1 [L7] COND TRUE 3 !expression [L7] 3 __VERIFIER_error() [L784] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L785] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L786] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L787] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L788] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L791] 3 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L732] 1 z = 2 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L737] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L742] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L749] 2 x = 1 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L754] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L755] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L756] 2 y$flush_delayed = weak$$choice2 [L757] 2 y$mem_tmp = y [L758] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L758] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1 [L758] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L758] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L759] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L759] 2 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L760] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L760] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1) [L760] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L760] 2 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L761] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L761] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used) [L761] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L761] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used) [L761] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L761] 2 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L762] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L762] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L762] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L762] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L763] EXPR 2 weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L763] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L764] EXPR 2 weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L764] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L765] 2 __unbuffered_p1_EAX = y [L766] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L766] 2 y = y$flush_delayed ? y$mem_tmp : y [L767] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=1, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L772] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=2] [L794] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L794] 3 y = y$w_buff0_used && y$r_buff0_thd3 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y) [L795] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L795] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L796] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L796] 3 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L797] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L797] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L798] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L798] 3 y$r_buff1_thd3 = y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L801] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L823] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L827] EXPR 0 y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y [L827] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L827] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L828] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L828] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L829] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L829] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L830] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L830] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L831] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L831] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L834] 0 main$tmp_guard1 = !(z == 2 && __unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0) VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L7] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] [L7] 0 __VERIFIER_error() VAL [__unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=0, x=1, y=1, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=1, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 4.9s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 2.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 132 SDtfs, 150 SDslu, 351 SDs, 0 SdLazy, 431 SolverSat, 97 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 78 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 94 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=519occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 482 NumberOfCodeBlocks, 482 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 407 ConstructedInterpolants, 0 QuantifiedInterpolants, 57987 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...