/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/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix035_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-7bb8cbd [2020-10-16 04:48:41,280 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-16 04:48:41,283 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-16 04:48:41,321 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-16 04:48:41,322 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-16 04:48:41,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-16 04:48:41,333 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-16 04:48:41,337 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-16 04:48:41,339 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-16 04:48:41,343 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-16 04:48:41,344 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-16 04:48:41,345 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-16 04:48:41,345 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-16 04:48:41,348 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-16 04:48:41,351 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-16 04:48:41,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-16 04:48:41,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-16 04:48:41,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-16 04:48:41,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-16 04:48:41,364 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-16 04:48:41,366 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-16 04:48:41,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-16 04:48:41,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-16 04:48:41,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-16 04:48:41,382 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-16 04:48:41,382 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-16 04:48:41,383 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-16 04:48:41,383 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-16 04:48:41,384 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-16 04:48:41,388 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-16 04:48:41,388 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-16 04:48:41,389 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-16 04:48:41,393 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-16 04:48:41,394 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-16 04:48:41,394 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-16 04:48:41,395 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-16 04:48:41,395 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-16 04:48:41,395 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-16 04:48:41,396 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-16 04:48:41,401 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-16 04:48:41,402 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-16 04:48:41,403 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-SemanticLbe-SemanticLooper.epf [2020-10-16 04:48:41,437 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-16 04:48:41,439 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-16 04:48:41,441 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-16 04:48:41,441 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-16 04:48:41,441 INFO L138 SettingsManager]: * Use SBE=true [2020-10-16 04:48:41,441 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-16 04:48:41,441 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-16 04:48:41,442 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-16 04:48:41,442 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-16 04:48:41,443 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-16 04:48:41,444 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-16 04:48:41,444 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-16 04:48:41,444 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-16 04:48:41,445 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-16 04:48:41,445 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-16 04:48:41,445 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-16 04:48:41,445 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-16 04:48:41,445 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-16 04:48:41,446 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-16 04:48:41,446 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-16 04:48:41,446 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-16 04:48:41,446 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-16 04:48:41,447 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-16 04:48:41,447 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-16 04:48:41,447 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-16 04:48:41,447 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-16 04:48:41,448 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-16 04:48:41,448 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-16 04:48:41,448 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-16 04:48:41,733 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-16 04:48:41,745 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-16 04:48:41,748 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-16 04:48:41,750 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-16 04:48:41,751 INFO L275 PluginConnector]: CDTParser initialized [2020-10-16 04:48:41,752 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix035_pso.opt.i [2020-10-16 04:48:41,810 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3bae9f9a/e7db34d45165459b8f763c00e30ac000/FLAG2b7bd775f [2020-10-16 04:48:42,341 INFO L306 CDTParser]: Found 1 translation units. [2020-10-16 04:48:42,342 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix035_pso.opt.i [2020-10-16 04:48:42,357 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3bae9f9a/e7db34d45165459b8f763c00e30ac000/FLAG2b7bd775f [2020-10-16 04:48:42,676 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f3bae9f9a/e7db34d45165459b8f763c00e30ac000 [2020-10-16 04:48:42,684 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-16 04:48:42,686 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-16 04:48:42,687 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-16 04:48:42,687 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-16 04:48:42,691 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-16 04:48:42,692 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:48:42" (1/1) ... [2020-10-16 04:48:42,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b6f427d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:42, skipping insertion in model container [2020-10-16 04:48:42,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 04:48:42" (1/1) ... [2020-10-16 04:48:42,705 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-16 04:48:42,776 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-16 04:48:43,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 04:48:43,286 INFO L203 MainTranslator]: Completed pre-run [2020-10-16 04:48:43,375 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-16 04:48:43,454 INFO L208 MainTranslator]: Completed translation [2020-10-16 04:48:43,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43 WrapperNode [2020-10-16 04:48:43,455 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-16 04:48:43,456 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-16 04:48:43,456 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-16 04:48:43,456 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-16 04:48:43,466 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,525 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-16 04:48:43,526 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-16 04:48:43,526 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-16 04:48:43,526 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-16 04:48:43,536 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,536 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,541 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,542 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,551 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,559 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (1/1) ... [2020-10-16 04:48:43,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-16 04:48:43,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-16 04:48:43,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-16 04:48:43,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-16 04:48:43,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (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 [2020-10-16 04:48:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-16 04:48:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-16 04:48:43,637 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-16 04:48:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-16 04:48:43,638 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-16 04:48:43,639 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-16 04:48:43,639 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-16 04:48:43,640 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-16 04:48:43,640 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-16 04:48:43,641 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-16 04:48:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-16 04:48:43,643 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-16 04:48:43,643 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-16 04:48:43,646 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-16 04:48:45,525 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-16 04:48:45,525 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-16 04:48:45,528 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:48:45 BoogieIcfgContainer [2020-10-16 04:48:45,528 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-16 04:48:45,529 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-16 04:48:45,529 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-16 04:48:45,533 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-16 04:48:45,533 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 04:48:42" (1/3) ... [2020-10-16 04:48:45,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f17853d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:48:45, skipping insertion in model container [2020-10-16 04:48:45,534 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 04:48:43" (2/3) ... [2020-10-16 04:48:45,534 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f17853d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 04:48:45, skipping insertion in model container [2020-10-16 04:48:45,535 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 04:48:45" (3/3) ... [2020-10-16 04:48:45,536 INFO L111 eAbstractionObserver]: Analyzing ICFG mix035_pso.opt.i [2020-10-16 04:48:45,548 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-16 04:48:45,556 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-16 04:48:45,557 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-16 04:48:45,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,588 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,588 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,589 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,590 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,590 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,590 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,591 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,592 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,593 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,594 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,595 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,596 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,597 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,598 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,600 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,601 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,601 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,601 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,601 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,601 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,602 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,602 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,603 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,604 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,608 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,609 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,609 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite23| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite24| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,616 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite21| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite22| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite20| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite19| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,617 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,618 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~nondet3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,618 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,619 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,620 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,621 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,621 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite25| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,623 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite26| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,624 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite30| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,624 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite27| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite28| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,625 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#t~ite29| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-16 04:48:45,643 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-16 04:48:45,665 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-16 04:48:45,665 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-16 04:48:45,665 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-16 04:48:45,665 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-16 04:48:45,666 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-16 04:48:45,666 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-16 04:48:45,666 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-16 04:48:45,666 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-16 04:48:45,681 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 104 places, 96 transitions, 207 flow [2020-10-16 04:48:45,727 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2020-10-16 04:48:45,728 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:48:45,733 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 59 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-16 04:48:45,733 INFO L82 GeneralOperation]: Start removeDead. Operand has 104 places, 96 transitions, 207 flow [2020-10-16 04:48:45,740 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 101 places, 93 transitions, 195 flow [2020-10-16 04:48:45,742 INFO L129 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2020-10-16 04:48:45,745 INFO L144 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 101 places, 93 transitions, 195 flow [2020-10-16 04:48:45,748 INFO L111 LiptonReduction]: Starting Lipton reduction on Petri net that has 101 places, 93 transitions, 195 flow [2020-10-16 04:48:45,749 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 195 flow [2020-10-16 04:48:45,773 INFO L129 PetriNetUnfolder]: 2/93 cut-off events. [2020-10-16 04:48:45,773 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:48:45,774 INFO L80 FinitePrefix]: Finished finitePrefix Result has 103 conditions, 93 events. 2/93 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 60 event pairs, 0 based on Foata normal form. 0/89 useless extension candidates. Maximal degree in co-relation 60. Up to 2 conditions per place. [2020-10-16 04:48:45,777 INFO L117 LiptonReduction]: Number of co-enabled transitions 1600 [2020-10-16 04:48:46,232 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 41 [2020-10-16 04:48:46,374 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,375 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,376 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,377 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,381 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,382 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:46,386 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:46,386 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:46,413 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,413 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,414 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,415 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,419 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,419 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:46,423 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:46,423 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:46,761 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 58 [2020-10-16 04:48:46,885 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,886 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,887 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,888 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,891 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,891 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:46,894 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:46,895 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:46,915 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:46,915 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,917 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,917 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:46,920 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:46,920 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:46,923 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:46,924 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:47,201 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,202 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,203 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,203 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,206 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,206 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,208 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:47,209 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,222 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,223 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,224 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,224 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,227 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,227 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:47,229 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:47,230 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:47,294 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:48:47,295 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,296 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:48:47,297 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,298 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:48:47,298 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,673 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 2, 5, 3, 3, 2, 1] term [2020-10-16 04:48:47,674 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,676 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 4, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:48:47,677 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,678 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 4, 4, 3, 3, 2, 1] term [2020-10-16 04:48:47,678 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,796 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:47,797 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,798 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,798 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,802 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,803 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:47,809 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:47,810 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:47,837 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,837 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,839 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,839 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,843 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,843 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,847 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:47,847 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,974 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:47,975 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,976 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,977 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:47,982 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[3, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:47,982 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:47,985 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[6, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:47,986 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 3 disjuncts [2020-10-16 04:48:48,004 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:48,005 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:48,006 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[2, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:48,006 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-16 04:48:48,008 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[4, 2, 3, 2, 3, 2, 3, 2, 3, 2, 1] term [2020-10-16 04:48:48,008 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:48,011 INFO L375 QuantifierPusher]: Applying distributivity to a CONJUNCTION[8, 2, 4, 2, 3, 2, 1] term [2020-10-16 04:48:48,011 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-16 04:48:49,221 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 93 [2020-10-16 04:48:49,397 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 91 [2020-10-16 04:48:49,433 INFO L132 LiptonReduction]: Checked pairs total: 3907 [2020-10-16 04:48:49,434 INFO L134 LiptonReduction]: Total number of compositions: 82 [2020-10-16 04:48:49,437 INFO L182 CegarLoopForPetriNet]: Time needed for LBE in milliseconds: 3697 [2020-10-16 04:48:49,445 INFO L129 PetriNetUnfolder]: 0/12 cut-off events. [2020-10-16 04:48:49,445 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:48:49,445 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:49,446 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:48:49,447 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:49,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:49,454 INFO L82 PathProgramCache]: Analyzing trace with hash 1418721489, now seen corresponding path program 1 times [2020-10-16 04:48:49,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:49,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253201261] [2020-10-16 04:48:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:49,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:48:49,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 04:48:49,843 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253201261] [2020-10-16 04:48:49,845 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:48:49,845 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 04:48:49,846 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1951561953] [2020-10-16 04:48:49,862 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 04:48:49,863 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:48:49,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 04:48:49,890 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 04:48:49,893 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 152 out of 178 [2020-10-16 04:48:49,895 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states. [2020-10-16 04:48:49,896 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:48:49,896 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 152 of 178 [2020-10-16 04:48:49,898 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:48:49,957 INFO L129 PetriNetUnfolder]: 9/49 cut-off events. [2020-10-16 04:48:49,957 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:48:49,958 INFO L80 FinitePrefix]: Finished finitePrefix Result has 81 conditions, 49 events. 9/49 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 126 event pairs, 3 based on Foata normal form. 0/40 useless extension candidates. Maximal degree in co-relation 71. Up to 17 conditions per place. [2020-10-16 04:48:49,959 INFO L132 encePairwiseOnDemand]: 175/178 looper letters, 5 selfloop transitions, 2 changer transitions 0/23 dead transitions. [2020-10-16 04:48:49,960 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 33 places, 23 transitions, 69 flow [2020-10-16 04:48:49,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 04:48:49,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 04:48:49,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 464 transitions. [2020-10-16 04:48:49,979 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8689138576779026 [2020-10-16 04:48:49,980 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 464 transitions. [2020-10-16 04:48:49,980 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 464 transitions. [2020-10-16 04:48:49,983 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:48:49,986 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 464 transitions. [2020-10-16 04:48:49,990 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 04:48:49,998 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 04:48:49,998 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 04:48:50,001 INFO L185 Difference]: Start difference. First operand has 32 places, 22 transitions, 53 flow. Second operand 3 states and 464 transitions. [2020-10-16 04:48:50,003 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 33 places, 23 transitions, 69 flow [2020-10-16 04:48:50,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 23 transitions, 66 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-16 04:48:50,008 INFO L241 Difference]: Finished difference. Result has 30 places, 21 transitions, 52 flow [2020-10-16 04:48:50,011 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=52, PETRI_PLACES=30, PETRI_TRANSITIONS=21} [2020-10-16 04:48:50,012 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -2 predicate places. [2020-10-16 04:48:50,013 INFO L481 AbstractCegarLoop]: Abstraction has has 30 places, 21 transitions, 52 flow [2020-10-16 04:48:50,013 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 04:48:50,013 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:50,013 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:48:50,013 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-16 04:48:50,014 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:50,014 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:50,014 INFO L82 PathProgramCache]: Analyzing trace with hash 1886783946, now seen corresponding path program 1 times [2020-10-16 04:48:50,014 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:50,015 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046464788] [2020-10-16 04:48:50,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:50,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:48:50,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 04:48:50,083 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2046464788] [2020-10-16 04:48:50,083 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:48:50,083 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-10-16 04:48:50,084 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730437990] [2020-10-16 04:48:50,085 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-16 04:48:50,085 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:48:50,086 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-16 04:48:50,086 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-16 04:48:50,088 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 157 out of 178 [2020-10-16 04:48:50,088 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 21 transitions, 52 flow. Second operand 3 states. [2020-10-16 04:48:50,088 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:48:50,089 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 157 of 178 [2020-10-16 04:48:50,089 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:48:50,109 INFO L129 PetriNetUnfolder]: 1/26 cut-off events. [2020-10-16 04:48:50,110 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:48:50,111 INFO L80 FinitePrefix]: Finished finitePrefix Result has 43 conditions, 26 events. 1/26 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/25 useless extension candidates. Maximal degree in co-relation 34. Up to 5 conditions per place. [2020-10-16 04:48:50,111 INFO L132 encePairwiseOnDemand]: 175/178 looper letters, 1 selfloop transitions, 2 changer transitions 2/22 dead transitions. [2020-10-16 04:48:50,111 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 22 transitions, 64 flow [2020-10-16 04:48:50,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-16 04:48:50,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-16 04:48:50,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 477 transitions. [2020-10-16 04:48:50,117 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8932584269662921 [2020-10-16 04:48:50,118 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 477 transitions. [2020-10-16 04:48:50,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 477 transitions. [2020-10-16 04:48:50,118 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:48:50,118 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 477 transitions. [2020-10-16 04:48:50,119 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-16 04:48:50,122 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-16 04:48:50,122 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-16 04:48:50,122 INFO L185 Difference]: Start difference. First operand has 30 places, 21 transitions, 52 flow. Second operand 3 states and 477 transitions. [2020-10-16 04:48:50,123 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 22 transitions, 64 flow [2020-10-16 04:48:50,123 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 22 transitions, 60 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 04:48:50,125 INFO L241 Difference]: Finished difference. Result has 31 places, 20 transitions, 54 flow [2020-10-16 04:48:50,125 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=48, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=54, PETRI_PLACES=31, PETRI_TRANSITIONS=20} [2020-10-16 04:48:50,126 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, -1 predicate places. [2020-10-16 04:48:50,126 INFO L481 AbstractCegarLoop]: Abstraction has has 31 places, 20 transitions, 54 flow [2020-10-16 04:48:50,126 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-16 04:48:50,126 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:50,126 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:48:50,127 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-16 04:48:50,127 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:50,127 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:50,127 INFO L82 PathProgramCache]: Analyzing trace with hash 723146911, now seen corresponding path program 1 times [2020-10-16 04:48:50,128 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:50,128 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271943563] [2020-10-16 04:48:50,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:50,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:48:50,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 04:48:50,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271943563] [2020-10-16 04:48:50,234 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:48:50,234 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:48:50,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [703996841] [2020-10-16 04:48:50,234 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:48:50,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:48:50,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:48:50,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:48:50,237 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 178 [2020-10-16 04:48:50,237 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 20 transitions, 54 flow. Second operand 4 states. [2020-10-16 04:48:50,238 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:48:50,238 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 178 [2020-10-16 04:48:50,238 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:48:50,291 INFO L129 PetriNetUnfolder]: 28/78 cut-off events. [2020-10-16 04:48:50,292 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-16 04:48:50,292 INFO L80 FinitePrefix]: Finished finitePrefix Result has 156 conditions, 78 events. 28/78 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 285 event pairs, 12 based on Foata normal form. 8/81 useless extension candidates. Maximal degree in co-relation 146. Up to 45 conditions per place. [2020-10-16 04:48:50,293 INFO L132 encePairwiseOnDemand]: 172/178 looper letters, 5 selfloop transitions, 4 changer transitions 7/30 dead transitions. [2020-10-16 04:48:50,293 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 30 transitions, 106 flow [2020-10-16 04:48:50,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-16 04:48:50,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-10-16 04:48:50,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 728 transitions. [2020-10-16 04:48:50,296 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8179775280898877 [2020-10-16 04:48:50,296 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 728 transitions. [2020-10-16 04:48:50,297 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 728 transitions. [2020-10-16 04:48:50,297 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:48:50,297 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 728 transitions. [2020-10-16 04:48:50,299 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-16 04:48:50,300 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 6 states. [2020-10-16 04:48:50,301 INFO L81 ComplementDD]: Finished complementDD. Result 6 states. [2020-10-16 04:48:50,301 INFO L185 Difference]: Start difference. First operand has 31 places, 20 transitions, 54 flow. Second operand 5 states and 728 transitions. [2020-10-16 04:48:50,301 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 30 transitions, 106 flow [2020-10-16 04:48:50,302 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 30 transitions, 102 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-16 04:48:50,302 INFO L241 Difference]: Finished difference. Result has 35 places, 23 transitions, 86 flow [2020-10-16 04:48:50,303 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=50, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=20, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=86, PETRI_PLACES=35, PETRI_TRANSITIONS=23} [2020-10-16 04:48:50,303 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 3 predicate places. [2020-10-16 04:48:50,303 INFO L481 AbstractCegarLoop]: Abstraction has has 35 places, 23 transitions, 86 flow [2020-10-16 04:48:50,303 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:48:50,303 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:50,303 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:48:50,304 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-16 04:48:50,304 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:50,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:50,304 INFO L82 PathProgramCache]: Analyzing trace with hash 1716184875, now seen corresponding path program 1 times [2020-10-16 04:48:50,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:50,305 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174584539] [2020-10-16 04:48:50,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:50,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:48:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 04:48:50,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174584539] [2020-10-16 04:48:50,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:48:50,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-16 04:48:50,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1974452589] [2020-10-16 04:48:50,365 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-16 04:48:50,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:48:50,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-16 04:48:50,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-16 04:48:50,367 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 178 [2020-10-16 04:48:50,368 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 23 transitions, 86 flow. Second operand 5 states. [2020-10-16 04:48:50,368 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:48:50,368 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 178 [2020-10-16 04:48:50,368 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:48:50,419 INFO L129 PetriNetUnfolder]: 16/56 cut-off events. [2020-10-16 04:48:50,419 INFO L130 PetriNetUnfolder]: For 48/87 co-relation queries the response was YES. [2020-10-16 04:48:50,420 INFO L80 FinitePrefix]: Finished finitePrefix Result has 183 conditions, 56 events. 16/56 cut-off events. For 48/87 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 149 event pairs, 2 based on Foata normal form. 14/68 useless extension candidates. Maximal degree in co-relation 170. Up to 35 conditions per place. [2020-10-16 04:48:50,421 INFO L132 encePairwiseOnDemand]: 172/178 looper letters, 5 selfloop transitions, 7 changer transitions 7/33 dead transitions. [2020-10-16 04:48:50,421 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 38 places, 33 transitions, 182 flow [2020-10-16 04:48:50,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-16 04:48:50,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-10-16 04:48:50,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 873 transitions. [2020-10-16 04:48:50,424 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8174157303370787 [2020-10-16 04:48:50,424 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 873 transitions. [2020-10-16 04:48:50,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 873 transitions. [2020-10-16 04:48:50,425 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:48:50,425 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 873 transitions. [2020-10-16 04:48:50,427 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-16 04:48:50,429 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 7 states. [2020-10-16 04:48:50,429 INFO L81 ComplementDD]: Finished complementDD. Result 7 states. [2020-10-16 04:48:50,429 INFO L185 Difference]: Start difference. First operand has 35 places, 23 transitions, 86 flow. Second operand 6 states and 873 transitions. [2020-10-16 04:48:50,429 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 38 places, 33 transitions, 182 flow [2020-10-16 04:48:50,430 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 33 transitions, 176 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 04:48:50,431 INFO L241 Difference]: Finished difference. Result has 39 places, 26 transitions, 136 flow [2020-10-16 04:48:50,432 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=80, PETRI_DIFFERENCE_MINUEND_PLACES=31, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=23, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=136, PETRI_PLACES=39, PETRI_TRANSITIONS=26} [2020-10-16 04:48:50,432 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 7 predicate places. [2020-10-16 04:48:50,432 INFO L481 AbstractCegarLoop]: Abstraction has has 39 places, 26 transitions, 136 flow [2020-10-16 04:48:50,432 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-16 04:48:50,432 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:50,433 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-16 04:48:50,433 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-16 04:48:50,433 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:50,433 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:50,433 INFO L82 PathProgramCache]: Analyzing trace with hash -1688172151, now seen corresponding path program 1 times [2020-10-16 04:48:50,434 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:50,434 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550192997] [2020-10-16 04:48:50,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:50,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:48:50,551 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 04:48:50,555 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550192997] [2020-10-16 04:48:50,555 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:48:50,555 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-10-16 04:48:50,555 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [83190232] [2020-10-16 04:48:50,556 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-16 04:48:50,556 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:48:50,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-16 04:48:50,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-16 04:48:50,560 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 142 out of 178 [2020-10-16 04:48:50,560 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 26 transitions, 136 flow. Second operand 6 states. [2020-10-16 04:48:50,561 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:48:50,561 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 142 of 178 [2020-10-16 04:48:50,561 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:48:50,642 INFO L129 PetriNetUnfolder]: 7/35 cut-off events. [2020-10-16 04:48:50,642 INFO L130 PetriNetUnfolder]: For 99/144 co-relation queries the response was YES. [2020-10-16 04:48:50,642 INFO L80 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 35 events. 7/35 cut-off events. For 99/144 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 51 event pairs, 0 based on Foata normal form. 16/50 useless extension candidates. Maximal degree in co-relation 124. Up to 20 conditions per place. [2020-10-16 04:48:50,643 INFO L132 encePairwiseOnDemand]: 172/178 looper letters, 2 selfloop transitions, 10 changer transitions 4/30 dead transitions. [2020-10-16 04:48:50,643 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 43 places, 30 transitions, 204 flow [2020-10-16 04:48:50,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-16 04:48:50,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-16 04:48:50,646 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1012 transitions. [2020-10-16 04:48:50,647 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.812199036918138 [2020-10-16 04:48:50,647 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1012 transitions. [2020-10-16 04:48:50,647 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1012 transitions. [2020-10-16 04:48:50,648 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:48:50,648 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1012 transitions. [2020-10-16 04:48:50,650 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-16 04:48:50,652 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-16 04:48:50,652 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-16 04:48:50,652 INFO L185 Difference]: Start difference. First operand has 39 places, 26 transitions, 136 flow. Second operand 7 states and 1012 transitions. [2020-10-16 04:48:50,653 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 43 places, 30 transitions, 204 flow [2020-10-16 04:48:50,656 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 30 transitions, 164 flow, removed 15 selfloop flow, removed 5 redundant places. [2020-10-16 04:48:50,657 INFO L241 Difference]: Finished difference. Result has 41 places, 26 transitions, 134 flow [2020-10-16 04:48:50,657 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=16, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=134, PETRI_PLACES=41, PETRI_TRANSITIONS=26} [2020-10-16 04:48:50,657 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 9 predicate places. [2020-10-16 04:48:50,657 INFO L481 AbstractCegarLoop]: Abstraction has has 41 places, 26 transitions, 134 flow [2020-10-16 04:48:50,658 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-16 04:48:50,658 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:50,658 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] [2020-10-16 04:48:50,658 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-16 04:48:50,658 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:50,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:50,659 INFO L82 PathProgramCache]: Analyzing trace with hash 239861963, now seen corresponding path program 1 times [2020-10-16 04:48:50,659 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:50,659 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2113917246] [2020-10-16 04:48:50,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:50,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:48:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 04:48:50,776 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2113917246] [2020-10-16 04:48:50,776 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:48:50,776 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:48:50,776 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542567579] [2020-10-16 04:48:50,777 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:48:50,777 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:48:50,777 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:48:50,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:48:50,782 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 153 out of 178 [2020-10-16 04:48:50,783 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 41 places, 26 transitions, 134 flow. Second operand 4 states. [2020-10-16 04:48:50,783 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:48:50,783 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 153 of 178 [2020-10-16 04:48:50,783 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:48:50,813 INFO L129 PetriNetUnfolder]: 10/46 cut-off events. [2020-10-16 04:48:50,813 INFO L130 PetriNetUnfolder]: For 66/72 co-relation queries the response was YES. [2020-10-16 04:48:50,814 INFO L80 FinitePrefix]: Finished finitePrefix Result has 150 conditions, 46 events. 10/46 cut-off events. For 66/72 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 100 event pairs, 0 based on Foata normal form. 2/47 useless extension candidates. Maximal degree in co-relation 134. Up to 21 conditions per place. [2020-10-16 04:48:50,814 INFO L132 encePairwiseOnDemand]: 175/178 looper letters, 3 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2020-10-16 04:48:50,814 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 27 transitions, 146 flow [2020-10-16 04:48:50,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 04:48:50,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 04:48:50,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 618 transitions. [2020-10-16 04:48:50,818 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8679775280898876 [2020-10-16 04:48:50,819 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 618 transitions. [2020-10-16 04:48:50,819 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 618 transitions. [2020-10-16 04:48:50,819 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:48:50,820 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 618 transitions. [2020-10-16 04:48:50,821 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 04:48:50,822 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 04:48:50,822 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 04:48:50,823 INFO L185 Difference]: Start difference. First operand has 41 places, 26 transitions, 134 flow. Second operand 4 states and 618 transitions. [2020-10-16 04:48:50,823 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 27 transitions, 146 flow [2020-10-16 04:48:50,825 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 27 transitions, 108 flow, removed 12 selfloop flow, removed 6 redundant places. [2020-10-16 04:48:50,827 INFO L241 Difference]: Finished difference. Result has 38 places, 26 transitions, 103 flow [2020-10-16 04:48:50,827 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=96, PETRI_DIFFERENCE_MINUEND_PLACES=33, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=103, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2020-10-16 04:48:50,827 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 6 predicate places. [2020-10-16 04:48:50,828 INFO L481 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 103 flow [2020-10-16 04:48:50,828 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:48:50,828 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:50,828 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] [2020-10-16 04:48:50,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-16 04:48:50,828 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:50,829 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:50,829 INFO L82 PathProgramCache]: Analyzing trace with hash -2044115775, now seen corresponding path program 2 times [2020-10-16 04:48:50,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:50,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074441857] [2020-10-16 04:48:50,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:50,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-16 04:48:50,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-16 04:48:50,921 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074441857] [2020-10-16 04:48:50,922 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-16 04:48:50,922 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-16 04:48:50,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [452832618] [2020-10-16 04:48:50,923 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-16 04:48:50,923 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-16 04:48:50,923 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-16 04:48:50,923 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-16 04:48:50,926 INFO L507 CegarLoopForPetriNet]: Number of universal loopers: 147 out of 178 [2020-10-16 04:48:50,926 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 103 flow. Second operand 4 states. [2020-10-16 04:48:50,927 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-16 04:48:50,927 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 147 of 178 [2020-10-16 04:48:50,927 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-16 04:48:50,986 INFO L129 PetriNetUnfolder]: 12/57 cut-off events. [2020-10-16 04:48:50,987 INFO L130 PetriNetUnfolder]: For 34/35 co-relation queries the response was YES. [2020-10-16 04:48:50,987 INFO L80 FinitePrefix]: Finished finitePrefix Result has 145 conditions, 57 events. 12/57 cut-off events. For 34/35 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 144 event pairs, 0 based on Foata normal form. 2/57 useless extension candidates. Maximal degree in co-relation 134. Up to 19 conditions per place. [2020-10-16 04:48:50,988 INFO L132 encePairwiseOnDemand]: 175/178 looper letters, 3 selfloop transitions, 1 changer transitions 1/27 dead transitions. [2020-10-16 04:48:50,988 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 27 transitions, 115 flow [2020-10-16 04:48:50,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-16 04:48:50,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-10-16 04:48:50,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 594 transitions. [2020-10-16 04:48:50,990 INFO L552 CegarLoopForPetriNet]: DFA transition density 0.8342696629213483 [2020-10-16 04:48:50,991 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 594 transitions. [2020-10-16 04:48:50,991 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 594 transitions. [2020-10-16 04:48:50,992 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-16 04:48:50,992 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 594 transitions. [2020-10-16 04:48:50,993 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 5 states. [2020-10-16 04:48:50,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 5 states. [2020-10-16 04:48:50,995 INFO L81 ComplementDD]: Finished complementDD. Result 5 states. [2020-10-16 04:48:50,995 INFO L185 Difference]: Start difference. First operand has 38 places, 26 transitions, 103 flow. Second operand 4 states and 594 transitions. [2020-10-16 04:48:50,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 27 transitions, 115 flow [2020-10-16 04:48:50,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 38 places, 27 transitions, 112 flow, removed 1 selfloop flow, removed 2 redundant places. [2020-10-16 04:48:51,000 INFO L241 Difference]: Finished difference. Result has 40 places, 26 transitions, 107 flow [2020-10-16 04:48:51,000 INFO L326 CegarLoopForPetriNet]: {PETRI_ALPHABET=178, PETRI_DIFFERENCE_MINUEND_FLOW=100, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=26, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=107, PETRI_PLACES=40, PETRI_TRANSITIONS=26} [2020-10-16 04:48:51,000 INFO L342 CegarLoopForPetriNet]: 32 programPoint places, 8 predicate places. [2020-10-16 04:48:51,001 INFO L481 AbstractCegarLoop]: Abstraction has has 40 places, 26 transitions, 107 flow [2020-10-16 04:48:51,001 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-16 04:48:51,001 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-16 04:48:51,001 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] [2020-10-16 04:48:51,001 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-16 04:48:51,002 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-16 04:48:51,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-16 04:48:51,002 INFO L82 PathProgramCache]: Analyzing trace with hash 2102764985, now seen corresponding path program 3 times [2020-10-16 04:48:51,002 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-16 04:48:51,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695516042] [2020-10-16 04:48:51,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-16 04:48:51,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 04:48:51,084 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 04:48:51,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-16 04:48:51,123 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-16 04:48:51,160 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-16 04:48:51,160 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-16 04:48:51,161 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-16 04:48:51,162 WARN L264 etLargeBlockEncoding]: Failed to translate choice composition: Branch encoders not available. [2020-10-16 04:48:51,181 WARN L124 codingBacktranslator]: Skipped backtranslation of ATE [826] [826] L3-->L840: Formula: (let ((.cse7 (= (mod ~y$w_buff0_used~0_In-1063365995 256) 0)) (.cse6 (= 0 (mod ~y$r_buff0_thd0~0_In-1063365995 256))) (.cse8 (= (mod ~y$r_buff1_thd0~0_In-1063365995 256) 0)) (.cse9 (= (mod ~y$w_buff1_used~0_In-1063365995 256) 0))) (let ((.cse0 (not .cse9)) (.cse1 (not .cse8)) (.cse2 (or .cse8 .cse9)) (.cse4 (not .cse6)) (.cse5 (not .cse7)) (.cse3 (or .cse6 .cse7))) (and (= ~y$r_buff1_thd0~0_Out-1063365995 ~y$r_buff1_thd0~0_In-1063365995) (or (and (or (and .cse0 .cse1 (= ~y$w_buff1~0_In-1063365995 ~y~0_Out-1063365995)) (and (= ~y~0_Out-1063365995 ~y~0_In-1063365995) .cse2)) .cse3) (and .cse4 .cse5 (= ~y$w_buff0~0_In-1063365995 ~y~0_Out-1063365995))) (not (= ULTIMATE.start_assume_abort_if_not_~cond_In-1063365995 0)) (or (and .cse0 (= ~y$w_buff1_used~0_Out-1063365995 0) .cse1) (and .cse2 (= ~y$w_buff1_used~0_In-1063365995 ~y$w_buff1_used~0_Out-1063365995))) (or (and .cse4 .cse5 (= ~y$w_buff0_used~0_Out-1063365995 0)) (and (= ~y$w_buff0_used~0_Out-1063365995 ~y$w_buff0_used~0_In-1063365995) .cse3)) (= ~y$r_buff0_thd0~0_Out-1063365995 ~y$r_buff0_thd0~0_In-1063365995)))) InVars {ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In-1063365995, ~y$w_buff0_used~0=~y$w_buff0_used~0_In-1063365995, ~y$w_buff1~0=~y$w_buff1~0_In-1063365995, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_In-1063365995, ~y$w_buff0~0=~y$w_buff0~0_In-1063365995, ~y~0=~y~0_In-1063365995, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_In-1063365995, ~y$w_buff1_used~0=~y$w_buff1_used~0_In-1063365995} OutVars{~y$w_buff0_used~0=~y$w_buff0_used~0_Out-1063365995, ULTIMATE.start_main_#t~ite39=|ULTIMATE.start_main_#t~ite39_Out-1063365995|, ULTIMATE.start_main_#t~ite35=|ULTIMATE.start_main_#t~ite35_Out-1063365995|, ULTIMATE.start_main_#t~ite36=|ULTIMATE.start_main_#t~ite36_Out-1063365995|, ULTIMATE.start_main_#t~ite38=|ULTIMATE.start_main_#t~ite38_Out-1063365995|, ULTIMATE.start_main_#t~ite37=|ULTIMATE.start_main_#t~ite37_Out-1063365995|, ULTIMATE.start_main_#t~ite34=|ULTIMATE.start_main_#t~ite34_Out-1063365995|, ULTIMATE.start_assume_abort_if_not_~cond=ULTIMATE.start_assume_abort_if_not_~cond_In-1063365995, ~y$w_buff1~0=~y$w_buff1~0_In-1063365995, ~y$r_buff0_thd0~0=~y$r_buff0_thd0~0_Out-1063365995, ~y$w_buff0~0=~y$w_buff0~0_In-1063365995, ~y~0=~y~0_Out-1063365995, ~y$r_buff1_thd0~0=~y$r_buff1_thd0~0_Out-1063365995, ~y$w_buff1_used~0=~y$w_buff1_used~0_Out-1063365995} AuxVars[] AssignedVars[~y$w_buff0_used~0, ULTIMATE.start_main_#t~ite39, ~y$r_buff0_thd0~0, ULTIMATE.start_main_#t~ite35, ULTIMATE.start_main_#t~ite36, ULTIMATE.start_main_#t~ite38, ULTIMATE.start_main_#t~ite37, ~y~0, ~y$r_buff1_thd0~0, ULTIMATE.start_main_#t~ite34, ~y$w_buff1_used~0] because there is no mapped edge [2020-10-16 04:48:51,187 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,187 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,189 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,189 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,189 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,189 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,190 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,190 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,190 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,190 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,190 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,191 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,191 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,191 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,191 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,191 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,192 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,192 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,192 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,192 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,192 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,192 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,193 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,194 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,194 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,194 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,194 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,194 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,194 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,195 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,195 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,195 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,195 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-16 04:48:51,195 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-16 04:48:51,251 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 04:48:51 BasicIcfg [2020-10-16 04:48:51,251 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-16 04:48:51,253 INFO L168 Benchmark]: Toolchain (without parser) took 8567.73 ms. Allocated memory was 252.7 MB in the beginning and 489.7 MB in the end (delta: 237.0 MB). Free memory was 206.4 MB in the beginning and 410.3 MB in the end (delta: -204.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 14.2 GB. [2020-10-16 04:48:51,254 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 04:48:51,255 INFO L168 Benchmark]: CACSL2BoogieTranslator took 768.43 ms. Allocated memory was 252.7 MB in the beginning and 317.7 MB in the end (delta: 65.0 MB). Free memory was 206.4 MB in the beginning and 266.5 MB in the end (delta: -60.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. [2020-10-16 04:48:51,255 INFO L168 Benchmark]: Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 317.7 MB. Free memory was 266.5 MB in the beginning and 263.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 04:48:51,256 INFO L168 Benchmark]: Boogie Preprocessor took 38.18 ms. Allocated memory is still 317.7 MB. Free memory was 263.9 MB in the beginning and 261.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-16 04:48:51,257 INFO L168 Benchmark]: RCFGBuilder took 1963.91 ms. Allocated memory was 317.7 MB in the beginning and 359.7 MB in the end (delta: 41.9 MB). Free memory was 261.4 MB in the beginning and 237.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 97.7 MB. Max. memory is 14.2 GB. [2020-10-16 04:48:51,258 INFO L168 Benchmark]: TraceAbstraction took 5722.01 ms. Allocated memory was 359.7 MB in the beginning and 489.7 MB in the end (delta: 130.0 MB). Free memory was 237.9 MB in the beginning and 410.3 MB in the end (delta: -172.5 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-16 04:48:51,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 252.7 MB. Free memory is still 229.1 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 768.43 ms. Allocated memory was 252.7 MB in the beginning and 317.7 MB in the end (delta: 65.0 MB). Free memory was 206.4 MB in the beginning and 266.5 MB in the end (delta: -60.1 MB). Peak memory consumption was 32.3 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 69.90 ms. Allocated memory is still 317.7 MB. Free memory was 266.5 MB in the beginning and 263.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 38.18 ms. Allocated memory is still 317.7 MB. Free memory was 263.9 MB in the beginning and 261.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1963.91 ms. Allocated memory was 317.7 MB in the beginning and 359.7 MB in the end (delta: 41.9 MB). Free memory was 261.4 MB in the beginning and 237.9 MB in the end (delta: 23.6 MB). Peak memory consumption was 97.7 MB. Max. memory is 14.2 GB. * TraceAbstraction took 5722.01 ms. Allocated memory was 359.7 MB in the beginning and 489.7 MB in the end (delta: 130.0 MB). Free memory was 237.9 MB in the beginning and 410.3 MB in the end (delta: -172.5 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks 1090 VarBasedMoverChecksPositive, 51 VarBasedMoverChecksNegative, 11 SemBasedMoverChecksPositive, 40 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 129 CheckedPairsTotal, LiptonReductionStatistics: ReductionTime: 3.6s, 101 PlacesBefore, 32 PlacesAfterwards, 93 TransitionsBefore, 22 TransitionsAfterwards, 1600 CoEnabledTransitionPairs, 7 FixpointIterations, 35 TrivialSequentialCompositions, 40 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 82 TotalNumberOfCompositions, 3907 MoverChecksTotal - 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; [L700] 0 int __unbuffered_p0_EAX = 0; [L702] 0 int __unbuffered_p1_EAX = 0; [L704] 0 int __unbuffered_p2_EAX = 0; [L706] 0 int __unbuffered_p2_EBX = 0; [L708] 0 int a = 0; [L709] 0 _Bool main$tmp_guard0; [L710] 0 _Bool main$tmp_guard1; [L712] 0 int x = 0; [L714] 0 int y = 0; [L715] 0 _Bool y$flush_delayed; [L716] 0 int y$mem_tmp; [L717] 0 _Bool y$r_buff0_thd0; [L718] 0 _Bool y$r_buff0_thd1; [L719] 0 _Bool y$r_buff0_thd2; [L720] 0 _Bool y$r_buff0_thd3; [L721] 0 _Bool y$r_buff1_thd0; [L722] 0 _Bool y$r_buff1_thd1; [L723] 0 _Bool y$r_buff1_thd2; [L724] 0 _Bool y$r_buff1_thd3; [L725] 0 _Bool y$read_delayed; [L726] 0 int *y$read_delayed_var; [L727] 0 int y$w_buff0; [L728] 0 _Bool y$w_buff0_used; [L729] 0 int y$w_buff1; [L730] 0 _Bool y$w_buff1_used; [L732] 0 int z = 0; [L733] 0 _Bool weak$$choice0; [L734] 0 _Bool weak$$choice2; [L824] 0 pthread_t t922; [L825] FCALL, FORK 0 pthread_create(&t922, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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] [L826] 0 pthread_t t923; [L827] FCALL, FORK 0 pthread_create(&t923, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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] [L828] 0 pthread_t t924; [L829] FCALL, FORK 0 pthread_create(&t924, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=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] [L781] 3 y$w_buff1 = y$w_buff0 [L782] 3 y$w_buff0 = 1 [L783] 3 y$w_buff1_used = y$w_buff0_used [L784] 3 y$w_buff0_used = (_Bool)1 [L7] COND FALSE 3 !(!expression) [L786] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L787] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L788] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L789] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L790] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=0, __unbuffered_p2_EBX=0, a=0, arg={0:0}, arg={0:0}, main$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] [L793] 3 z = 1 [L796] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=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] [L799] 3 __unbuffered_p2_EBX = a VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=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] [L738] 1 a = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1] [L741] 1 __unbuffered_p0_EAX = x VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1] [L753] 2 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=1] [L756] 2 weak$$choice0 = __VERIFIER_nondet_bool() [L757] 2 weak$$choice2 = __VERIFIER_nondet_bool() [L758] 2 y$flush_delayed = weak$$choice2 [L759] 2 y$mem_tmp = y [L760] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L760] 2 y = !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff1) [L761] EXPR 2 weak$$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$w_buff0)) [L761] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0) [L761] EXPR 2 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : y$w_buff0)) [L761] 2 y$w_buff0 = weak$$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)) [L762] EXPR 2 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff1 : y$w_buff1)) [L762] 2 y$w_buff1 = weak$$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)) [L763] EXPR 2 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used)) [L763] 2 y$w_buff0_used = weak$$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)) [L764] EXPR 2 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L764] EXPR 2 !y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0) [L764] EXPR 2 weak$$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$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L764] 2 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L765] EXPR 2 weak$$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)) [L765] 2 y$r_buff0_thd2 = weak$$choice2 ? y$r_buff0_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff0_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2)) [L766] EXPR 2 weak$$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$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L766] 2 y$r_buff1_thd2 = weak$$choice2 ? y$r_buff1_thd2 : (!y$w_buff0_used || !y$r_buff0_thd2 && !y$w_buff1_used || !y$r_buff0_thd2 && !y$r_buff1_thd2 ? y$r_buff1_thd2 : (y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : (_Bool)0)) [L767] 2 __unbuffered_p1_EAX = y [L768] EXPR 2 y$flush_delayed ? y$mem_tmp : y [L768] 2 y = y$flush_delayed ? y$mem_tmp : y [L769] 2 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=0, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=7, weak$$choice2=255, 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=1] [L746] 1 __unbuffered_cnt = __unbuffered_cnt + 1 [L748] 1 return 0; [L774] 2 __unbuffered_cnt = __unbuffered_cnt + 1 [L776] 2 return 0; [L802] 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) [L802] EXPR 3 y$w_buff1_used && y$r_buff1_thd3 ? y$w_buff1 : y [L802] 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) [L802] 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) [L803] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L803] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L804] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L804] 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 [L805] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L805] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L806] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L806] 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 [L809] 3 __unbuffered_cnt = __unbuffered_cnt + 1 [L811] 3 return 0; [L831] 0 main$tmp_guard0 = __unbuffered_cnt == 3 [L842] 0 main$tmp_guard1 = !(__unbuffered_p0_EAX == 0 && __unbuffered_p1_EAX == 0 && __unbuffered_p2_EAX == 1 && __unbuffered_p2_EBX == 0) [L7] COND TRUE 0 !expression [L7] 0 __VERIFIER_error() VAL [\result={0:0}, \result={0:0}, __unbuffered_cnt=3, __unbuffered_p0_EAX=0, __unbuffered_p1_EAX=0, __unbuffered_p2_EAX=1, __unbuffered_p2_EBX=0, a=1, 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=255, 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=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 95 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: 5.5s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 3.7s, HoareTripleCheckerStatistics: 24 SDtfs, 14 SDslu, 13 SDs, 0 SdLazy, 108 SolverSat, 19 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=136occurred in iteration=4, 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, 0.3s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 118 NumberOfCodeBlocks, 118 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 91 ConstructedInterpolants, 0 QuantifiedInterpolants, 3281 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...