/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-11af1e5 [2020-10-09 16:57:18,593 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-09 16:57:18,596 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-09 16:57:18,619 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-09 16:57:18,619 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-09 16:57:18,620 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-09 16:57:18,621 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-09 16:57:18,623 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-09 16:57:18,625 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-09 16:57:18,626 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-09 16:57:18,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-09 16:57:18,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-09 16:57:18,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-09 16:57:18,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-09 16:57:18,630 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-09 16:57:18,631 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-09 16:57:18,632 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-09 16:57:18,633 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-09 16:57:18,634 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-09 16:57:18,636 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-09 16:57:18,637 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-09 16:57:18,638 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-09 16:57:18,639 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-09 16:57:18,640 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-09 16:57:18,643 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-09 16:57:18,643 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-09 16:57:18,643 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-09 16:57:18,644 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-09 16:57:18,644 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-09 16:57:18,645 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-09 16:57:18,645 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-09 16:57:18,646 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-09 16:57:18,647 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-09 16:57:18,648 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-09 16:57:18,648 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-09 16:57:18,649 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-09 16:57:18,649 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-09 16:57:18,649 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-09 16:57:18,650 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-09 16:57:18,651 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-09 16:57:18,651 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-09 16:57:18,652 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/VMCAI2021_PN.epf [2020-10-09 16:57:18,673 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-09 16:57:18,674 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-09 16:57:18,675 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-09 16:57:18,675 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-09 16:57:18,675 INFO L138 SettingsManager]: * Use SBE=true [2020-10-09 16:57:18,675 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-09 16:57:18,676 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-09 16:57:18,676 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-09 16:57:18,676 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-09 16:57:18,676 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-09 16:57:18,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-09 16:57:18,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-09 16:57:18,677 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-09 16:57:18,677 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-09 16:57:18,677 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-09 16:57:18,677 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-09 16:57:18,677 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-09 16:57:18,678 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-09 16:57:18,678 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-09 16:57:18,678 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-09 16:57:18,678 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-09 16:57:18,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-09 16:57:18,679 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-09 16:57:18,679 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-09 16:57:18,679 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-09 16:57:18,679 INFO L138 SettingsManager]: * Trace refinement strategy=WALRUS [2020-10-09 16:57:18,679 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-09 16:57:18,679 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-10-09 16:57:18,680 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2020-10-09 16:57:18,680 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-10-09 16:57:18,985 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-09 16:57:18,996 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-09 16:57:18,999 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-09 16:57:19,000 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-09 16:57:19,001 INFO L275 PluginConnector]: CDTParser initialized [2020-10-09 16:57:19,002 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i [2020-10-09 16:57:19,057 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4becb85e9/2dae888f648e428a833967340774eddf/FLAGff31049d8 [2020-10-09 16:57:19,516 INFO L306 CDTParser]: Found 1 translation units. [2020-10-09 16:57:19,517 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_rmo.opt.i [2020-10-09 16:57:19,531 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4becb85e9/2dae888f648e428a833967340774eddf/FLAGff31049d8 [2020-10-09 16:57:19,808 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4becb85e9/2dae888f648e428a833967340774eddf [2020-10-09 16:57:19,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-09 16:57:19,817 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-10-09 16:57:19,819 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-09 16:57:19,819 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-09 16:57:19,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-09 16:57:19,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 04:57:19" (1/1) ... [2020-10-09 16:57:19,826 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dbb33a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:19, skipping insertion in model container [2020-10-09 16:57:19,826 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.10 04:57:19" (1/1) ... [2020-10-09 16:57:19,834 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-09 16:57:19,901 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-09 16:57:20,376 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 16:57:20,395 INFO L203 MainTranslator]: Completed pre-run [2020-10-09 16:57:20,458 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-09 16:57:20,542 INFO L208 MainTranslator]: Completed translation [2020-10-09 16:57:20,544 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20 WrapperNode [2020-10-09 16:57:20,544 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-09 16:57:20,545 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-09 16:57:20,545 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-09 16:57:20,545 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-09 16:57:20,555 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,603 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,639 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-09 16:57:20,640 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-09 16:57:20,640 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-09 16:57:20,640 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-09 16:57:20,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,650 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,654 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,664 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,668 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,671 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (1/1) ... [2020-10-09 16:57:20,676 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-09 16:57:20,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-09 16:57:20,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-09 16:57:20,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-09 16:57:20,677 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (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 [2020-10-09 16:57:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-09 16:57:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-10-09 16:57:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-09 16:57:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-09 16:57:20,745 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-10-09 16:57:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-10-09 16:57:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-10-09 16:57:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-10-09 16:57:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-10-09 16:57:20,746 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-10-09 16:57:20,746 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-10-09 16:57:20,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-09 16:57:20,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-09 16:57:20,749 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-10-09 16:57:22,481 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-09 16:57:22,481 INFO L298 CfgBuilder]: Removed 10 assume(true) statements. [2020-10-09 16:57:22,483 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 04:57:22 BoogieIcfgContainer [2020-10-09 16:57:22,483 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-09 16:57:22,484 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-09 16:57:22,485 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-09 16:57:22,488 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-09 16:57:22,488 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.10 04:57:19" (1/3) ... [2020-10-09 16:57:22,489 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8aa8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 04:57:22, skipping insertion in model container [2020-10-09 16:57:22,489 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.10 04:57:20" (2/3) ... [2020-10-09 16:57:22,490 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d8aa8c3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.10 04:57:22, skipping insertion in model container [2020-10-09 16:57:22,490 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.10 04:57:22" (3/3) ... [2020-10-09 16:57:22,492 INFO L111 eAbstractionObserver]: Analyzing ICFG mix056_rmo.opt.i [2020-10-09 16:57:22,503 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-09 16:57:22,510 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-10-09 16:57:22,511 INFO L348 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-10-09 16:57:22,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,539 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,539 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,540 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,541 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,541 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,542 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,543 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,544 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,544 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,545 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,545 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,545 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,546 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,546 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,547 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,548 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,551 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,552 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,552 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite2| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,553 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,556 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,557 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,557 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,557 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,557 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,558 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,558 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,559 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,564 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,564 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,565 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,565 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-10-09 16:57:22,581 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-10-09 16:57:22,602 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-09 16:57:22,602 INFO L378 AbstractCegarLoop]: Hoare is false [2020-10-09 16:57:22,602 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-09 16:57:22,602 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-09 16:57:22,602 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-09 16:57:22,603 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-09 16:57:22,603 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-09 16:57:22,603 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-09 16:57:22,616 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 99 places, 91 transitions, 197 flow [2020-10-09 16:57:22,660 INFO L129 PetriNetUnfolder]: 2/88 cut-off events. [2020-10-09 16:57:22,660 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:57:22,665 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 88 events. 2/88 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 63 event pairs, 0 based on Foata normal form. 0/84 useless extension candidates. Maximal degree in co-relation 59. Up to 2 conditions per place. [2020-10-09 16:57:22,665 INFO L82 GeneralOperation]: Start removeDead. Operand has 99 places, 91 transitions, 197 flow [2020-10-09 16:57:22,672 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 96 places, 88 transitions, 185 flow [2020-10-09 16:57:22,687 INFO L129 PetriNetUnfolder]: 0/56 cut-off events. [2020-10-09 16:57:22,687 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:57:22,688 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:22,689 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:22,689 INFO L429 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:22,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:22,695 INFO L82 PathProgramCache]: Analyzing trace with hash 1064364671, now seen corresponding path program 1 times [2020-10-09 16:57:22,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:22,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1956131203] [2020-10-09 16:57:22,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:22,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:57:22,846 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 16:57:22,854 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:57:22,898 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:22,898 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:57:22,939 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:22,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:22,996 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1956131203] [2020-10-09 16:57:22,996 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:57:22,997 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 3 [2020-10-09 16:57:22,998 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275827577] [2020-10-09 16:57:23,008 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-09 16:57:23,008 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:57:23,022 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-09 16:57:23,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-10-09 16:57:23,142 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 86 out of 91 [2020-10-09 16:57:23,144 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 88 transitions, 185 flow. Second operand 4 states. [2020-10-09 16:57:23,144 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:57:23,144 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 86 of 91 [2020-10-09 16:57:23,146 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:57:23,178 INFO L129 PetriNetUnfolder]: 0/85 cut-off events. [2020-10-09 16:57:23,178 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:57:23,179 INFO L80 FinitePrefix]: Finished finitePrefix Result has 98 conditions, 85 events. 0/85 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 56 event pairs, 0 based on Foata normal form. 4/87 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2020-10-09 16:57:23,180 INFO L132 encePairwiseOnDemand]: 86/91 looper letters, 0 selfloop transitions, 2 changer transitions 11/85 dead transitions. [2020-10-09 16:57:23,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 97 places, 85 transitions, 183 flow [2020-10-09 16:57:23,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-09 16:57:23,183 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-10-09 16:57:23,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 265 transitions. [2020-10-09 16:57:23,195 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9706959706959707 [2020-10-09 16:57:23,196 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 265 transitions. [2020-10-09 16:57:23,197 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 265 transitions. [2020-10-09 16:57:23,198 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:57:23,201 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 265 transitions. [2020-10-09 16:57:23,205 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 4 states. [2020-10-09 16:57:23,210 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 4 states. [2020-10-09 16:57:23,211 INFO L81 ComplementDD]: Finished complementDD. Result 4 states. [2020-10-09 16:57:23,213 INFO L185 Difference]: Start difference. First operand has 96 places, 88 transitions, 185 flow. Second operand 3 states and 265 transitions. [2020-10-09 16:57:23,214 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 97 places, 85 transitions, 183 flow [2020-10-09 16:57:23,218 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 85 transitions, 180 flow, removed 0 selfloop flow, removed 3 redundant places. [2020-10-09 16:57:23,221 INFO L241 Difference]: Finished difference. Result has 94 places, 74 transitions, 158 flow [2020-10-09 16:57:23,224 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=176, PETRI_DIFFERENCE_MINUEND_PLACES=92, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=85, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=83, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=158, PETRI_PLACES=94, PETRI_TRANSITIONS=74} [2020-10-09 16:57:23,225 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, -2 predicate places. [2020-10-09 16:57:23,225 INFO L481 AbstractCegarLoop]: Abstraction has has 94 places, 74 transitions, 158 flow [2020-10-09 16:57:23,225 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-09 16:57:23,225 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:23,226 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:23,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-10-09 16:57:23,445 INFO L429 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:23,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:23,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1361861819, now seen corresponding path program 1 times [2020-10-09 16:57:23,448 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:23,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1465675783] [2020-10-09 16:57:23,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:23,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:57:23,540 INFO L263 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 6 conjunts are in the unsatisfiable core [2020-10-09 16:57:23,545 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:57:23,569 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:23,600 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:23,601 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:57:23,650 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:23,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1465675783] [2020-10-09 16:57:23,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:57:23,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2020-10-09 16:57:23,652 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1821611330] [2020-10-09 16:57:23,653 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 16:57:23,653 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:57:23,654 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 16:57:23,654 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-09 16:57:23,786 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 80 out of 91 [2020-10-09 16:57:23,787 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 94 places, 74 transitions, 158 flow. Second operand 8 states. [2020-10-09 16:57:23,787 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:57:23,787 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 80 of 91 [2020-10-09 16:57:23,787 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:57:23,936 INFO L129 PetriNetUnfolder]: 18/168 cut-off events. [2020-10-09 16:57:23,936 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-10-09 16:57:23,938 INFO L80 FinitePrefix]: Finished finitePrefix Result has 238 conditions, 168 events. 18/168 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 578 event pairs, 0 based on Foata normal form. 5/171 useless extension candidates. Maximal degree in co-relation 202. Up to 15 conditions per place. [2020-10-09 16:57:23,938 INFO L132 encePairwiseOnDemand]: 84/91 looper letters, 10 selfloop transitions, 5 changer transitions 23/103 dead transitions. [2020-10-09 16:57:23,939 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 103 transitions, 292 flow [2020-10-09 16:57:23,939 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-09 16:57:23,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-10-09 16:57:23,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 1081 transitions. [2020-10-09 16:57:23,946 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9137785291631445 [2020-10-09 16:57:23,947 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 1081 transitions. [2020-10-09 16:57:23,947 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 1081 transitions. [2020-10-09 16:57:23,948 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:57:23,948 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 1081 transitions. [2020-10-09 16:57:23,951 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 14 states. [2020-10-09 16:57:23,956 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 14 states. [2020-10-09 16:57:23,957 INFO L81 ComplementDD]: Finished complementDD. Result 14 states. [2020-10-09 16:57:23,957 INFO L185 Difference]: Start difference. First operand has 94 places, 74 transitions, 158 flow. Second operand 13 states and 1081 transitions. [2020-10-09 16:57:23,957 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 103 transitions, 292 flow [2020-10-09 16:57:23,958 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 93 places, 103 transitions, 288 flow, removed 0 selfloop flow, removed 2 redundant places. [2020-10-09 16:57:23,961 INFO L241 Difference]: Finished difference. Result has 104 places, 76 transitions, 196 flow [2020-10-09 16:57:23,962 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=154, PETRI_DIFFERENCE_MINUEND_PLACES=81, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=196, PETRI_PLACES=104, PETRI_TRANSITIONS=76} [2020-10-09 16:57:23,962 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 8 predicate places. [2020-10-09 16:57:23,962 INFO L481 AbstractCegarLoop]: Abstraction has has 104 places, 76 transitions, 196 flow [2020-10-09 16:57:23,963 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 16:57:23,963 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:23,963 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:24,173 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-10-09 16:57:24,174 INFO L429 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:24,174 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:24,174 INFO L82 PathProgramCache]: Analyzing trace with hash -2130168358, now seen corresponding path program 1 times [2020-10-09 16:57:24,175 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:24,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1436968872] [2020-10-09 16:57:24,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:24,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:57:24,263 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-09 16:57:24,266 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:57:24,314 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-09 16:57:24,356 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 16:57:24,360 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 16:57:24,371 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-09 16:57:24,374 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-09 16:57:24,380 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:24,381 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:24,433 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:24,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:57:24,482 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-09 16:57:24,494 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 2, 1] term [2020-10-09 16:57:24,495 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:24,497 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-09 16:57:24,528 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 4, 2, 3, 2, 1] term [2020-10-09 16:57:24,528 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:24,535 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:24,549 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:24,568 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:24,569 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1436968872] [2020-10-09 16:57:24,569 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:57:24,569 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 12 [2020-10-09 16:57:24,570 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [983650266] [2020-10-09 16:57:24,570 INFO L461 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-09 16:57:24,570 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:57:24,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-09 16:57:24,571 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2020-10-09 16:57:24,897 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 91 [2020-10-09 16:57:24,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 104 places, 76 transitions, 196 flow. Second operand 12 states. [2020-10-09 16:57:24,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:57:24,899 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 91 [2020-10-09 16:57:24,899 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:57:25,517 INFO L129 PetriNetUnfolder]: 238/703 cut-off events. [2020-10-09 16:57:25,517 INFO L130 PetriNetUnfolder]: For 548/556 co-relation queries the response was YES. [2020-10-09 16:57:25,525 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1518 conditions, 703 events. 238/703 cut-off events. For 548/556 co-relation queries the response was YES. Maximal size of possible extension queue 67. Compared 4419 event pairs, 0 based on Foata normal form. 22/709 useless extension candidates. Maximal degree in co-relation 1464. Up to 195 conditions per place. [2020-10-09 16:57:25,530 INFO L132 encePairwiseOnDemand]: 79/91 looper letters, 16 selfloop transitions, 15 changer transitions 50/143 dead transitions. [2020-10-09 16:57:25,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 116 places, 143 transitions, 586 flow [2020-10-09 16:57:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-09 16:57:25,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-10-09 16:57:25,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 1714 transitions. [2020-10-09 16:57:25,538 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8561438561438561 [2020-10-09 16:57:25,538 INFO L72 ComplementDD]: Start complementDD. Operand 22 states and 1714 transitions. [2020-10-09 16:57:25,538 INFO L73 IsDeterministic]: Start isDeterministic. Operand 22 states and 1714 transitions. [2020-10-09 16:57:25,545 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:57:25,545 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 22 states and 1714 transitions. [2020-10-09 16:57:25,548 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 23 states. [2020-10-09 16:57:25,552 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 23 states. [2020-10-09 16:57:25,552 INFO L81 ComplementDD]: Finished complementDD. Result 23 states. [2020-10-09 16:57:25,552 INFO L185 Difference]: Start difference. First operand has 104 places, 76 transitions, 196 flow. Second operand 22 states and 1714 transitions. [2020-10-09 16:57:25,553 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 116 places, 143 transitions, 586 flow [2020-10-09 16:57:25,563 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 107 places, 143 transitions, 490 flow, removed 48 selfloop flow, removed 9 redundant places. [2020-10-09 16:57:25,567 INFO L241 Difference]: Finished difference. Result has 124 places, 86 transitions, 296 flow [2020-10-09 16:57:25,568 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=178, PETRI_DIFFERENCE_MINUEND_PLACES=86, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=67, PETRI_DIFFERENCE_SUBTRAHEND_STATES=22, PETRI_FLOW=296, PETRI_PLACES=124, PETRI_TRANSITIONS=86} [2020-10-09 16:57:25,568 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 28 predicate places. [2020-10-09 16:57:25,568 INFO L481 AbstractCegarLoop]: Abstraction has has 124 places, 86 transitions, 296 flow [2020-10-09 16:57:25,568 INFO L482 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-09 16:57:25,569 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:25,569 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:25,780 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-10-09 16:57:25,781 INFO L429 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:25,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:25,781 INFO L82 PathProgramCache]: Analyzing trace with hash -1389158372, now seen corresponding path program 1 times [2020-10-09 16:57:25,782 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:25,783 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [716419806] [2020-10-09 16:57:25,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:25,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:57:25,905 INFO L263 TraceCheckSpWp]: Trace formula consists of 182 conjuncts, 26 conjunts are in the unsatisfiable core [2020-10-09 16:57:25,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:57:25,957 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:25,959 INFO L603 QuantifierPusher]: Distributing 3 conjuncts over 2 disjuncts [2020-10-09 16:57:25,964 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 16:57:25,967 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 16:57:25,970 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 4 disjuncts [2020-10-09 16:57:26,022 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:26,058 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:26,059 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:57:26,117 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 4, 3, 2, 1] term [2020-10-09 16:57:26,118 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,122 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 4, 4, 3, 3, 2, 1] term [2020-10-09 16:57:26,122 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,123 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 4, 4, 4, 3, 2, 1] term [2020-10-09 16:57:26,123 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,124 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 3, 4, 4, 3, 2, 1] term [2020-10-09 16:57:26,124 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,126 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-09 16:57:26,130 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 2, 4, 4, 4, 4, 4, 4, 4, 3, 2, 1] term [2020-10-09 16:57:26,131 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,133 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-09 16:57:26,142 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 5 conjuncts [2020-10-09 16:57:26,152 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 4, 4, 4, 4, 4, 3, 2, 1] term [2020-10-09 16:57:26,153 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,154 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 4, 4, 4, 4, 4, 3, 2, 1] term [2020-10-09 16:57:26,154 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,211 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-10-09 16:57:26,212 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,215 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:26,242 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-09 16:57:26,243 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:26,244 INFO L375 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 3, 3, 2, 1] term [2020-10-09 16:57:26,244 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,245 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,246 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:26,248 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-09 16:57:26,252 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:26,256 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-09 16:57:26,260 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-09 16:57:26,262 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-09 16:57:26,270 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 2 conjuncts [2020-10-09 16:57:26,275 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-10-09 16:57:26,280 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-09 16:57:26,284 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-09 16:57:26,287 INFO L603 QuantifierPusher]: Distributing 3 disjuncts over 4 conjuncts [2020-10-09 16:57:26,291 INFO L603 QuantifierPusher]: Distributing 4 disjuncts over 4 conjuncts [2020-10-09 16:57:26,292 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-10-09 16:57:26,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:26,365 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [716419806] [2020-10-09 16:57:26,365 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:57:26,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 9] imperfect sequences [] total 15 [2020-10-09 16:57:26,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182300599] [2020-10-09 16:57:26,366 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-09 16:57:26,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:57:26,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-09 16:57:26,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=159, Unknown=0, NotChecked=0, Total=210 [2020-10-09 16:57:27,231 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 91 [2020-10-09 16:57:27,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 124 places, 86 transitions, 296 flow. Second operand 15 states. [2020-10-09 16:57:27,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:57:27,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 91 [2020-10-09 16:57:27,233 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:57:28,263 INFO L129 PetriNetUnfolder]: 196/585 cut-off events. [2020-10-09 16:57:28,263 INFO L130 PetriNetUnfolder]: For 1686/1791 co-relation queries the response was YES. [2020-10-09 16:57:28,267 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1957 conditions, 585 events. 196/585 cut-off events. For 1686/1791 co-relation queries the response was YES. Maximal size of possible extension queue 55. Compared 3411 event pairs, 8 based on Foata normal form. 29/601 useless extension candidates. Maximal degree in co-relation 1887. Up to 172 conditions per place. [2020-10-09 16:57:28,271 INFO L132 encePairwiseOnDemand]: 77/91 looper letters, 22 selfloop transitions, 23 changer transitions 56/160 dead transitions. [2020-10-09 16:57:28,271 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 160 transitions, 997 flow [2020-10-09 16:57:28,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-10-09 16:57:28,273 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2020-10-09 16:57:28,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 1936 transitions. [2020-10-09 16:57:28,279 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8182586644125106 [2020-10-09 16:57:28,279 INFO L72 ComplementDD]: Start complementDD. Operand 26 states and 1936 transitions. [2020-10-09 16:57:28,279 INFO L73 IsDeterministic]: Start isDeterministic. Operand 26 states and 1936 transitions. [2020-10-09 16:57:28,281 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:57:28,281 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 26 states and 1936 transitions. [2020-10-09 16:57:28,285 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 27 states. [2020-10-09 16:57:28,289 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 27 states. [2020-10-09 16:57:28,289 INFO L81 ComplementDD]: Finished complementDD. Result 27 states. [2020-10-09 16:57:28,289 INFO L185 Difference]: Start difference. First operand has 124 places, 86 transitions, 296 flow. Second operand 26 states and 1936 transitions. [2020-10-09 16:57:28,289 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 160 transitions, 997 flow [2020-10-09 16:57:28,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 160 transitions, 859 flow, removed 68 selfloop flow, removed 13 redundant places. [2020-10-09 16:57:28,300 INFO L241 Difference]: Finished difference. Result has 140 places, 97 transitions, 455 flow [2020-10-09 16:57:28,300 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=268, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=86, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=26, PETRI_FLOW=455, PETRI_PLACES=140, PETRI_TRANSITIONS=97} [2020-10-09 16:57:28,301 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 44 predicate places. [2020-10-09 16:57:28,301 INFO L481 AbstractCegarLoop]: Abstraction has has 140 places, 97 transitions, 455 flow [2020-10-09 16:57:28,301 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-09 16:57:28,301 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:28,301 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:28,521 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-10-09 16:57:28,522 INFO L429 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:28,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:28,522 INFO L82 PathProgramCache]: Analyzing trace with hash 573126764, now seen corresponding path program 1 times [2020-10-09 16:57:28,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:28,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1063106328] [2020-10-09 16:57:28,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:28,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:57:28,619 INFO L263 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 8 conjunts are in the unsatisfiable core [2020-10-09 16:57:28,621 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:57:28,637 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:28,662 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:28,663 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:57:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:28,696 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1063106328] [2020-10-09 16:57:28,696 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:57:28,696 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 8 [2020-10-09 16:57:28,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228339722] [2020-10-09 16:57:28,697 INFO L461 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-09 16:57:28,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:57:28,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-09 16:57:28,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2020-10-09 16:57:28,816 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2020-10-09 16:57:28,817 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 140 places, 97 transitions, 455 flow. Second operand 8 states. [2020-10-09 16:57:28,817 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:57:28,817 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2020-10-09 16:57:28,817 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:57:29,111 INFO L129 PetriNetUnfolder]: 228/703 cut-off events. [2020-10-09 16:57:29,111 INFO L130 PetriNetUnfolder]: For 933/942 co-relation queries the response was YES. [2020-10-09 16:57:29,117 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1576 conditions, 703 events. 228/703 cut-off events. For 933/942 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4849 event pairs, 0 based on Foata normal form. 31/678 useless extension candidates. Maximal degree in co-relation 1499. Up to 105 conditions per place. [2020-10-09 16:57:29,121 INFO L132 encePairwiseOnDemand]: 82/91 looper letters, 15 selfloop transitions, 27 changer transitions 6/130 dead transitions. [2020-10-09 16:57:29,121 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 130 transitions, 591 flow [2020-10-09 16:57:29,121 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-09 16:57:29,121 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-10-09 16:57:29,124 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 987 transitions. [2020-10-09 16:57:29,126 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.9038461538461539 [2020-10-09 16:57:29,126 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 987 transitions. [2020-10-09 16:57:29,126 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 987 transitions. [2020-10-09 16:57:29,128 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:57:29,128 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 987 transitions. [2020-10-09 16:57:29,130 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2020-10-09 16:57:29,132 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 13 states. [2020-10-09 16:57:29,132 INFO L81 ComplementDD]: Finished complementDD. Result 13 states. [2020-10-09 16:57:29,132 INFO L185 Difference]: Start difference. First operand has 140 places, 97 transitions, 455 flow. Second operand 12 states and 987 transitions. [2020-10-09 16:57:29,132 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 130 transitions, 591 flow [2020-10-09 16:57:29,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 130 transitions, 501 flow, removed 30 selfloop flow, removed 25 redundant places. [2020-10-09 16:57:29,140 INFO L241 Difference]: Finished difference. Result has 115 places, 120 transitions, 483 flow [2020-10-09 16:57:29,140 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=329, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=92, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=483, PETRI_PLACES=115, PETRI_TRANSITIONS=120} [2020-10-09 16:57:29,140 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 19 predicate places. [2020-10-09 16:57:29,140 INFO L481 AbstractCegarLoop]: Abstraction has has 115 places, 120 transitions, 483 flow [2020-10-09 16:57:29,141 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-09 16:57:29,141 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:29,141 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:29,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-10-09 16:57:29,353 INFO L429 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:29,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:29,354 INFO L82 PathProgramCache]: Analyzing trace with hash 692730494, now seen corresponding path program 1 times [2020-10-09 16:57:29,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:29,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [219704465] [2020-10-09 16:57:29,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:29,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:57:29,478 INFO L263 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 10 conjunts are in the unsatisfiable core [2020-10-09 16:57:29,480 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:57:29,499 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:29,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:29,522 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:57:29,553 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:29,554 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [219704465] [2020-10-09 16:57:29,554 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:57:29,554 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 10 [2020-10-09 16:57:29,554 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [670583981] [2020-10-09 16:57:29,555 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-09 16:57:29,555 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:57:29,555 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-09 16:57:29,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2020-10-09 16:57:29,656 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 91 [2020-10-09 16:57:29,657 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 120 transitions, 483 flow. Second operand 10 states. [2020-10-09 16:57:29,657 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:57:29,657 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 91 [2020-10-09 16:57:29,657 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:57:29,938 INFO L129 PetriNetUnfolder]: 180/600 cut-off events. [2020-10-09 16:57:29,938 INFO L130 PetriNetUnfolder]: For 348/830 co-relation queries the response was YES. [2020-10-09 16:57:29,943 INFO L80 FinitePrefix]: Finished finitePrefix Result has 1482 conditions, 600 events. 180/600 cut-off events. For 348/830 co-relation queries the response was YES. Maximal size of possible extension queue 100. Compared 4177 event pairs, 0 based on Foata normal form. 184/730 useless extension candidates. Maximal degree in co-relation 1450. Up to 96 conditions per place. [2020-10-09 16:57:29,946 INFO L132 encePairwiseOnDemand]: 82/91 looper letters, 10 selfloop transitions, 32 changer transitions 14/134 dead transitions. [2020-10-09 16:57:29,946 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 134 transitions, 626 flow [2020-10-09 16:57:29,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-09 16:57:29,947 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-09 16:57:29,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1221 transitions. [2020-10-09 16:57:29,951 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8945054945054945 [2020-10-09 16:57:29,952 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1221 transitions. [2020-10-09 16:57:29,952 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1221 transitions. [2020-10-09 16:57:29,953 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:57:29,953 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1221 transitions. [2020-10-09 16:57:29,955 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-09 16:57:29,958 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 16 states. [2020-10-09 16:57:29,959 INFO L81 ComplementDD]: Finished complementDD. Result 16 states. [2020-10-09 16:57:29,959 INFO L185 Difference]: Start difference. First operand has 115 places, 120 transitions, 483 flow. Second operand 15 states and 1221 transitions. [2020-10-09 16:57:29,959 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 134 transitions, 626 flow [2020-10-09 16:57:29,963 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 134 transitions, 604 flow, removed 9 selfloop flow, removed 5 redundant places. [2020-10-09 16:57:29,966 INFO L241 Difference]: Finished difference. Result has 130 places, 116 transitions, 528 flow [2020-10-09 16:57:29,966 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=425, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=84, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=528, PETRI_PLACES=130, PETRI_TRANSITIONS=116} [2020-10-09 16:57:29,967 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 34 predicate places. [2020-10-09 16:57:29,967 INFO L481 AbstractCegarLoop]: Abstraction has has 130 places, 116 transitions, 528 flow [2020-10-09 16:57:29,967 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-09 16:57:29,967 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:29,967 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:30,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-10-09 16:57:30,181 INFO L429 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:30,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:30,182 INFO L82 PathProgramCache]: Analyzing trace with hash 1882090886, now seen corresponding path program 1 times [2020-10-09 16:57:30,182 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:30,183 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1447672851] [2020-10-09 16:57:30,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:30,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-09 16:57:30,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 210 conjuncts, 7 conjunts are in the unsatisfiable core [2020-10-09 16:57:30,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-09 16:57:30,343 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-09 16:57:30,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:30,364 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-10-09 16:57:30,401 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-09 16:57:30,401 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1447672851] [2020-10-09 16:57:30,402 INFO L219 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-10-09 16:57:30,402 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2020-10-09 16:57:30,402 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [93630797] [2020-10-09 16:57:30,402 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-09 16:57:30,403 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WALRUS [2020-10-09 16:57:30,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-09 16:57:30,403 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2020-10-09 16:57:30,584 INFO L506 CegarLoopForPetriNet]: Number of universal loopers: 79 out of 91 [2020-10-09 16:57:30,584 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 116 transitions, 528 flow. Second operand 9 states. [2020-10-09 16:57:30,584 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2020-10-09 16:57:30,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 79 of 91 [2020-10-09 16:57:30,585 INFO L71 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2020-10-09 16:57:30,779 INFO L129 PetriNetUnfolder]: 212/810 cut-off events. [2020-10-09 16:57:30,779 INFO L130 PetriNetUnfolder]: For 1062/1107 co-relation queries the response was YES. [2020-10-09 16:57:30,784 INFO L80 FinitePrefix]: Finished finitePrefix Result has 2143 conditions, 810 events. 212/810 cut-off events. For 1062/1107 co-relation queries the response was YES. Maximal size of possible extension queue 141. Compared 6715 event pairs, 0 based on Foata normal form. 2/735 useless extension candidates. Maximal degree in co-relation 2080. Up to 116 conditions per place. [2020-10-09 16:57:30,786 INFO L132 encePairwiseOnDemand]: 85/91 looper letters, 9 selfloop transitions, 1 changer transitions 16/121 dead transitions. [2020-10-09 16:57:30,786 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 134 places, 121 transitions, 570 flow [2020-10-09 16:57:30,787 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-09 16:57:30,787 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-10-09 16:57:30,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 569 transitions. [2020-10-09 16:57:30,789 INFO L551 CegarLoopForPetriNet]: DFA transition density 0.8932496075353218 [2020-10-09 16:57:30,789 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 569 transitions. [2020-10-09 16:57:30,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 569 transitions. [2020-10-09 16:57:30,789 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-09 16:57:30,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 569 transitions. [2020-10-09 16:57:30,791 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 8 states. [2020-10-09 16:57:30,792 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result 8 states. [2020-10-09 16:57:30,792 INFO L81 ComplementDD]: Finished complementDD. Result 8 states. [2020-10-09 16:57:30,792 INFO L185 Difference]: Start difference. First operand has 130 places, 116 transitions, 528 flow. Second operand 7 states and 569 transitions. [2020-10-09 16:57:30,792 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 134 places, 121 transitions, 570 flow [2020-10-09 16:57:30,801 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 123 places, 121 transitions, 518 flow, removed 4 selfloop flow, removed 11 redundant places. [2020-10-09 16:57:30,803 INFO L241 Difference]: Finished difference. Result has 128 places, 105 transitions, 417 flow [2020-10-09 16:57:30,803 INFO L325 CegarLoopForPetriNet]: {PETRI_ALPHABET=91, PETRI_DIFFERENCE_MINUEND_FLOW=476, PETRI_DIFFERENCE_MINUEND_PLACES=117, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=116, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=115, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=417, PETRI_PLACES=128, PETRI_TRANSITIONS=105} [2020-10-09 16:57:30,803 INFO L341 CegarLoopForPetriNet]: 96 programPoint places, 32 predicate places. [2020-10-09 16:57:30,803 INFO L481 AbstractCegarLoop]: Abstraction has has 128 places, 105 transitions, 417 flow [2020-10-09 16:57:30,803 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-09 16:57:30,803 INFO L247 CegarLoopForPetriNet]: Found error trace [2020-10-09 16:57:30,804 INFO L255 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-09 16:57:31,004 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-10-09 16:57:31,005 INFO L429 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-09 16:57:31,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-09 16:57:31,005 INFO L82 PathProgramCache]: Analyzing trace with hash -1474549202, now seen corresponding path program 2 times [2020-10-09 16:57:31,007 INFO L162 FreeRefinementEngine]: Executing refinement strategy WALRUS [2020-10-09 16:57:31,007 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1991816385] [2020-10-09 16:57:31,008 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-10-09 16:57:31,115 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2020-10-09 16:57:31,115 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-10-09 16:57:31,115 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 16:57:31,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-09 16:57:31,164 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-09 16:57:31,260 INFO L173 FreeRefinementEngine]: Strategy WALRUS found a feasible trace [2020-10-09 16:57:31,261 INFO L519 BasicCegarLoop]: Counterexample might be feasible [2020-10-09 16:57:31,474 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-10-09 16:57:31,499 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,499 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,500 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,500 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,500 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,501 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,501 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,501 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,501 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,501 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,501 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,501 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,502 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,502 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,502 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,502 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,502 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,503 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,503 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,503 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,503 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,503 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,504 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,504 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,505 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,505 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,505 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,505 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,505 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,505 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,506 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,506 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,506 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,506 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,506 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,507 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,507 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,507 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,507 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,507 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,507 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,508 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,508 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,508 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,508 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,508 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,508 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,509 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,509 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,509 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,509 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,509 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,509 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,510 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,510 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,510 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,510 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,510 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,510 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,510 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,511 WARN L219 RCFGBacktranslator]: You are using large block encoding together with an algorithm for which the backtranslation into program statements is not yet implemented. [2020-10-09 16:57:31,511 ERROR L222 RCFGBacktranslator]: unable to determine which branch was taken, unable to determine the location [2020-10-09 16:57:31,612 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.10 04:57:31 BasicIcfg [2020-10-09 16:57:31,613 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-09 16:57:31,615 INFO L168 Benchmark]: Toolchain (without parser) took 11797.20 ms. Allocated memory was 252.2 MB in the beginning and 547.4 MB in the end (delta: 295.2 MB). Free memory was 207.4 MB in the beginning and 418.2 MB in the end (delta: -210.8 MB). Peak memory consumption was 84.4 MB. Max. memory is 14.2 GB. [2020-10-09 16:57:31,616 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 16:57:31,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.93 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 207.4 MB in the beginning and 269.5 MB in the end (delta: -62.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 14.2 GB. [2020-10-09 16:57:31,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 94.46 ms. Allocated memory is still 317.2 MB. Free memory was 269.5 MB in the beginning and 266.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 16:57:31,618 INFO L168 Benchmark]: Boogie Preprocessor took 36.23 ms. Allocated memory is still 317.2 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. [2020-10-09 16:57:31,619 INFO L168 Benchmark]: RCFGBuilder took 1807.19 ms. Allocated memory was 317.2 MB in the beginning and 359.1 MB in the end (delta: 41.9 MB). Free memory was 264.4 MB in the beginning and 214.9 MB in the end (delta: 49.6 MB). Peak memory consumption was 101.4 MB. Max. memory is 14.2 GB. [2020-10-09 16:57:31,620 INFO L168 Benchmark]: TraceAbstraction took 9128.24 ms. Allocated memory was 359.1 MB in the beginning and 547.4 MB in the end (delta: 188.2 MB). Free memory was 214.9 MB in the beginning and 418.2 MB in the end (delta: -203.4 MB). There was no memory consumed. Max. memory is 14.2 GB. [2020-10-09 16:57:31,625 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 252.2 MB. Free memory is still 228.6 MB. There was no memory consumed. Max. memory is 14.2 GB. * CACSL2BoogieTranslator took 725.93 ms. Allocated memory was 252.2 MB in the beginning and 317.2 MB in the end (delta: 65.0 MB). Free memory was 207.4 MB in the beginning and 269.5 MB in the end (delta: -62.0 MB). Peak memory consumption was 35.9 MB. Max. memory is 14.2 GB. * Boogie Procedure Inliner took 94.46 ms. Allocated memory is still 317.2 MB. Free memory was 269.5 MB in the beginning and 266.9 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * Boogie Preprocessor took 36.23 ms. Allocated memory is still 317.2 MB. Free memory was 266.9 MB in the beginning and 264.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.2 GB. * RCFGBuilder took 1807.19 ms. Allocated memory was 317.2 MB in the beginning and 359.1 MB in the end (delta: 41.9 MB). Free memory was 264.4 MB in the beginning and 214.9 MB in the end (delta: 49.6 MB). Peak memory consumption was 101.4 MB. Max. memory is 14.2 GB. * TraceAbstraction took 9128.24 ms. Allocated memory was 359.1 MB in the beginning and 547.4 MB in the end (delta: 188.2 MB). Free memory was 214.9 MB in the beginning and 418.2 MB in the end (delta: -203.4 MB). There was no memory consumed. Max. memory is 14.2 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 7]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L698] 0 int __unbuffered_cnt = 0; VAL [__unbuffered_cnt=0] [L700] 0 int __unbuffered_p2_EAX = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0] [L701] 0 _Bool main$tmp_guard0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0] [L702] 0 _Bool main$tmp_guard1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0] [L704] 0 int x = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0] [L706] 0 int y = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0] [L707] 0 _Bool y$flush_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0] [L708] 0 int y$mem_tmp; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0] [L709] 0 _Bool y$r_buff0_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0] [L710] 0 _Bool y$r_buff0_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0] [L711] 0 _Bool y$r_buff0_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0] [L712] 0 _Bool y$r_buff0_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0] [L713] 0 _Bool y$r_buff1_thd0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0] [L714] 0 _Bool y$r_buff1_thd1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0] [L715] 0 _Bool y$r_buff1_thd2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0] [L716] 0 _Bool y$r_buff1_thd3; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0] [L717] 0 _Bool y$read_delayed; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0] [L718] 0 int *y$read_delayed_var; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}] [L719] 0 int y$w_buff0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0] [L720] 0 _Bool y$w_buff0_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0] [L721] 0 int y$w_buff1; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0] [L722] 0 _Bool y$w_buff1_used; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0] [L724] 0 int z = 0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L725] 0 _Bool weak$$choice0; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L726] 0 _Bool weak$$choice2; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L802] 0 pthread_t t1504; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L803] FCALL, FORK 0 pthread_create(&t1504, ((void *)0), P0, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L804] 0 pthread_t t1505; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L805] FCALL, FORK 0 pthread_create(&t1505, ((void *)0), P1, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L806] 0 pthread_t t1506; VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L807] FCALL, FORK 0 pthread_create(&t1506, ((void *)0), P2, ((void *)0)) VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=0, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=0, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=0] [L765] 3 y$w_buff1 = y$w_buff0 [L766] 3 y$w_buff0 = 2 [L767] 3 y$w_buff1_used = y$w_buff0_used [L768] 3 y$w_buff0_used = (_Bool)1 [L7] COND FALSE 3 !(!expression) [L770] 3 y$r_buff1_thd0 = y$r_buff0_thd0 [L771] 3 y$r_buff1_thd1 = y$r_buff0_thd1 [L772] 3 y$r_buff1_thd2 = y$r_buff0_thd2 [L773] 3 y$r_buff1_thd3 = y$r_buff0_thd3 [L774] 3 y$r_buff0_thd3 = (_Bool)1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L777] 3 __unbuffered_p2_EAX = z VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=0] [L730] 1 z = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=0, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L733] 1 x = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=1, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L745] 2 x = 2 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=0, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L748] 2 y = 1 VAL [__unbuffered_cnt=0, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, 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=2, y$w_buff0_used=1, y$w_buff1=0, y$w_buff1_used=0, z=1] [L751] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L751] 2 y = y$w_buff0_used && y$r_buff0_thd2 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd2 ? y$w_buff1 : y) [L752] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L752] 2 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$w_buff0_used [L753] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L753] 2 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$w_buff1_used [L754] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L754] 2 y$r_buff0_thd2 = y$w_buff0_used && y$r_buff0_thd2 ? (_Bool)0 : y$r_buff0_thd2 [L755] EXPR 2 y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L755] 2 y$r_buff1_thd2 = y$w_buff0_used && y$r_buff0_thd2 || y$w_buff1_used && y$r_buff1_thd2 ? (_Bool)0 : y$r_buff1_thd2 [L780] 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) [L780] 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) [L781] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L781] 3 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$w_buff0_used [L782] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$w_buff1_used [L782] 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 [L783] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L783] 3 y$r_buff0_thd3 = y$w_buff0_used && y$r_buff0_thd3 ? (_Bool)0 : y$r_buff0_thd3 [L784] EXPR 3 y$w_buff0_used && y$r_buff0_thd3 || y$w_buff1_used && y$r_buff1_thd3 ? (_Bool)0 : y$r_buff1_thd3 [L784] 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 [L738] 1 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=1, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L758] 2 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=2, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L787] 3 __unbuffered_cnt = __unbuffered_cnt + 1 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=0, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L809] 0 main$tmp_guard0 = __unbuffered_cnt == 3 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L3] COND FALSE 0 !(!cond) VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=0, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=0, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L813] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L813] 0 y = y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : (y$w_buff1_used && y$r_buff1_thd0 ? y$w_buff1 : y) [L814] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L814] 0 y$w_buff0_used = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used [L815] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L815] 0 y$w_buff1_used = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$w_buff1_used [L816] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L816] 0 y$r_buff0_thd0 = y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L817] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L817] 0 y$r_buff1_thd0 = y$w_buff0_used && y$r_buff0_thd0 || y$w_buff1_used && y$r_buff1_thd0 ? (_Bool)0 : y$r_buff1_thd0 [L820] 0 weak$$choice0 = __VERIFIER_nondet_bool() [L821] 0 weak$$choice2 = __VERIFIER_nondet_bool() [L822] 0 y$flush_delayed = weak$$choice2 [L823] 0 y$mem_tmp = y [L824] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L824] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1 [L824] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L824] 0 y = !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff1) [L825] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L825] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L825] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0 [L825] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0) [L825] EXPR 0 weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L825] 0 y$w_buff0 = weak$$choice2 ? y$w_buff0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff0 : y$w_buff0)) [L826] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L826] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L826] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1 [L826] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1) [L826] EXPR 0 weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L826] 0 y$w_buff1 = weak$$choice2 ? y$w_buff1 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1 : (y$w_buff0_used && y$r_buff0_thd0 ? y$w_buff1 : y$w_buff1)) [L827] EXPR 0 weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L827] 0 y$w_buff0_used = weak$$choice2 ? y$w_buff0_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff0_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$w_buff0_used)) [L828] EXPR 0 weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L828] 0 y$w_buff1_used = weak$$choice2 ? y$w_buff1_used : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$w_buff1_used : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L829] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L829] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L829] EXPR 0 y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0 [L829] EXPR 0 !y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0) [L829] EXPR 0 weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L829] 0 y$r_buff0_thd0 = weak$$choice2 ? y$r_buff0_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff0_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : y$r_buff0_thd0)) [L830] EXPR 0 weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L830] 0 y$r_buff1_thd0 = weak$$choice2 ? y$r_buff1_thd0 : (!y$w_buff0_used || !y$r_buff0_thd0 && !y$w_buff1_used || !y$r_buff0_thd0 && !y$r_buff1_thd0 ? y$r_buff1_thd0 : (y$w_buff0_used && y$r_buff0_thd0 ? (_Bool)0 : (_Bool)0)) [L831] 0 main$tmp_guard1 = !(x == 2 && y == 2 && __unbuffered_p2_EAX == 0) [L832] EXPR 0 y$flush_delayed ? y$mem_tmp : y [L832] 0 y = y$flush_delayed ? y$mem_tmp : y [L833] 0 y$flush_delayed = (_Bool)0 VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L7] COND TRUE 0 !expression VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, y$r_buff0_thd0=0, y$r_buff0_thd1=0, y$r_buff0_thd2=0, y$r_buff0_thd3=1, y$r_buff1_thd0=0, y$r_buff1_thd1=0, y$r_buff1_thd2=0, y$r_buff1_thd3=0, y$read_delayed=0, y$read_delayed_var={0:0}, y$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] [L7] 0 __VERIFIER_error() VAL [__unbuffered_cnt=3, __unbuffered_p2_EAX=0, arg={0:0}, arg={0:0}, arg={0:0}, arg={0:0}, main$tmp_guard0=1, main$tmp_guard1=0, weak$$choice0=5, weak$$choice2=0, x=2, y=2, y$flush_delayed=0, y$mem_tmp=2, 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$w_buff0=2, y$w_buff0_used=0, y$w_buff1=0, y$w_buff1_used=0, z=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 90 locations, 2 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: VerificationResult: UNSAFE, OverallTime: 8.8s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 4.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 69 SDtfs, 349 SDslu, 615 SDs, 0 SdLazy, 663 SolverSat, 188 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 854 GetRequests, 725 SyntacticMatches, 13 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 498 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=528occurred in iteration=6, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 470 NumberOfCodeBlocks, 470 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 790 ConstructedInterpolants, 0 QuantifiedInterpolants, 187368 SizeOfPredicates, 66 NumberOfNonLiveVariables, 1207 ConjunctsInSsa, 74 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 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...