/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-wmm/mix056_power.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 03:28:50,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 03:28:50,398 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 03:28:50,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 03:28:50,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 03:28:50,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 03:28:50,416 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 03:28:50,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 03:28:50,421 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 03:28:50,429 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 03:28:50,430 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 03:28:50,432 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 03:28:50,433 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 03:28:50,434 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 03:28:50,437 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 03:28:50,438 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 03:28:50,439 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 03:28:50,441 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 03:28:50,443 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 03:28:50,446 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 03:28:50,450 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 03:28:50,451 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 03:28:50,452 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 03:28:50,453 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 03:28:50,455 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 03:28:50,455 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 03:28:50,456 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 03:28:50,457 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 03:28:50,457 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 03:28:50,458 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 03:28:50,458 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 03:28:50,459 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 03:28:50,459 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 03:28:50,460 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 03:28:50,461 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 03:28:50,461 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 03:28:50,462 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 03:28:50,462 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 03:28:50,463 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 03:28:50,463 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 03:28:50,464 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 03:28:50,465 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 03:28:50,486 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 03:28:50,487 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 03:28:50,491 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 03:28:50,491 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 03:28:50,491 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 03:28:50,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 03:28:50,492 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 03:28:50,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 03:28:50,492 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 03:28:50,492 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 03:28:50,492 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 03:28:50,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 03:28:50,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 03:28:50,493 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 03:28:50,493 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 03:28:50,493 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 03:28:50,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 03:28:50,498 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 03:28:50,498 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 03:28:50,498 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 03:28:50,499 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 03:28:50,499 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 03:28:50,499 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 03:28:50,499 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 03:28:50,499 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 03:28:50,500 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 03:28:50,500 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 03:28:50,500 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 03:28:50,500 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 03:28:50,500 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 03:28:50,780 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 03:28:50,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 03:28:50,795 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 03:28:50,797 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 03:28:50,797 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 03:28:50,798 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/mix056_power.opt.i [2019-12-19 03:28:50,877 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfceb16d4/2a6f16a65f6840e78859259a1a7d7d1a/FLAG5548dad21 [2019-12-19 03:28:51,428 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 03:28:51,428 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/mix056_power.opt.i [2019-12-19 03:28:51,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfceb16d4/2a6f16a65f6840e78859259a1a7d7d1a/FLAG5548dad21 [2019-12-19 03:28:51,701 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dfceb16d4/2a6f16a65f6840e78859259a1a7d7d1a [2019-12-19 03:28:51,710 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 03:28:51,712 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 03:28:51,713 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 03:28:51,713 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 03:28:51,717 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 03:28:51,718 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:28:51" (1/1) ... [2019-12-19 03:28:51,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@55ee5bbf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:51, skipping insertion in model container [2019-12-19 03:28:51,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 03:28:51" (1/1) ... [2019-12-19 03:28:51,729 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 03:28:51,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 03:28:52,386 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 03:28:52,408 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 03:28:52,468 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 03:28:52,554 INFO L208 MainTranslator]: Completed translation [2019-12-19 03:28:52,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52 WrapperNode [2019-12-19 03:28:52,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 03:28:52,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 03:28:52,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 03:28:52,556 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 03:28:52,566 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,590 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,628 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 03:28:52,628 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 03:28:52,628 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 03:28:52,628 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 03:28:52,639 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,644 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,645 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,657 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,663 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... [2019-12-19 03:28:52,672 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 03:28:52,672 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 03:28:52,672 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 03:28:52,673 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 03:28:52,674 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 03:28:52,736 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 03:28:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 03:28:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 03:28:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 03:28:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 03:28:52,737 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 03:28:52,737 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 03:28:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 03:28:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 03:28:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 03:28:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 03:28:52,738 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 03:28:52,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 03:28:52,740 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 03:28:53,494 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 03:28:53,495 INFO L287 CfgBuilder]: Removed 8 assume(true) statements. [2019-12-19 03:28:53,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:28:53 BoogieIcfgContainer [2019-12-19 03:28:53,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 03:28:53,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 03:28:53,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 03:28:53,501 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 03:28:53,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 03:28:51" (1/3) ... [2019-12-19 03:28:53,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318a5f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:28:53, skipping insertion in model container [2019-12-19 03:28:53,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 03:28:52" (2/3) ... [2019-12-19 03:28:53,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@318a5f68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 03:28:53, skipping insertion in model container [2019-12-19 03:28:53,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 03:28:53" (3/3) ... [2019-12-19 03:28:53,505 INFO L109 eAbstractionObserver]: Analyzing ICFG mix056_power.opt.i [2019-12-19 03:28:53,516 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 03:28:53,516 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 03:28:53,524 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-19 03:28:53,525 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 03:28:53,562 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,563 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,563 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,563 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,564 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,564 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,565 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,565 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,566 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,566 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,566 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,567 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,567 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,567 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,570 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,571 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,571 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,571 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,572 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,572 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,573 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,573 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,573 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,574 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,575 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,576 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,577 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,577 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,579 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,579 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,580 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,581 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,581 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,581 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,583 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,584 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,584 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,585 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,585 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,585 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,586 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,586 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,587 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,587 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,587 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,587 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,588 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,588 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,588 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,588 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,589 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,589 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,589 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,589 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,590 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,590 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,590 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,590 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,591 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,591 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,591 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,592 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,596 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,596 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,597 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0___VERIFIER_assert_#in~expression| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,597 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,597 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,597 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,598 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,598 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,598 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,599 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork0___VERIFIER_assert_~expression not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,599 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,600 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork0_#t~ite9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,603 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,604 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,605 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,607 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,608 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite8| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,608 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite5| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite4| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite7| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite6| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,609 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#t~ite3| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,610 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 03:28:53,626 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-19 03:28:53,649 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 03:28:53,649 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 03:28:53,667 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 03:28:53,667 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 03:28:53,668 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 03:28:53,671 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 03:28:53,672 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 03:28:53,672 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 03:28:53,695 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 162 places, 193 transitions [2019-12-19 03:29:08,140 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 92465 states. [2019-12-19 03:29:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 92465 states. [2019-12-19 03:29:08,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2019-12-19 03:29:08,156 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:29:08,157 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:29:08,157 INFO L410 AbstractCegarLoop]: === Iteration 1 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:29:08,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:29:08,162 INFO L82 PathProgramCache]: Analyzing trace with hash -40692432, now seen corresponding path program 1 times [2019-12-19 03:29:08,169 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:29:08,169 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410719063] [2019-12-19 03:29:08,169 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:29:08,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:29:08,516 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:29:08,519 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [410719063] [2019-12-19 03:29:08,520 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:29:08,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 03:29:08,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2145935740] [2019-12-19 03:29:08,527 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 03:29:08,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:29:08,543 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 03:29:08,546 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 03:29:08,548 INFO L87 Difference]: Start difference. First operand 92465 states. Second operand 4 states. [2019-12-19 03:29:10,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:29:10,266 INFO L93 Difference]: Finished difference Result 96401 states and 448737 transitions. [2019-12-19 03:29:10,266 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-12-19 03:29:10,268 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 44 [2019-12-19 03:29:10,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:29:10,920 INFO L225 Difference]: With dead ends: 96401 [2019-12-19 03:29:10,921 INFO L226 Difference]: Without dead ends: 85521 [2019-12-19 03:29:10,924 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 03:29:14,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85521 states. [2019-12-19 03:29:16,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85521 to 85521. [2019-12-19 03:29:16,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85521 states. [2019-12-19 03:29:20,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85521 states to 85521 states and 400697 transitions. [2019-12-19 03:29:20,158 INFO L78 Accepts]: Start accepts. Automaton has 85521 states and 400697 transitions. Word has length 44 [2019-12-19 03:29:20,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:29:20,159 INFO L462 AbstractCegarLoop]: Abstraction has 85521 states and 400697 transitions. [2019-12-19 03:29:20,159 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 03:29:20,159 INFO L276 IsEmpty]: Start isEmpty. Operand 85521 states and 400697 transitions. [2019-12-19 03:29:20,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-12-19 03:29:20,179 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:29:20,179 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:29:20,179 INFO L410 AbstractCegarLoop]: === Iteration 2 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:29:20,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:29:20,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1486807028, now seen corresponding path program 1 times [2019-12-19 03:29:20,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:29:20,180 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640750184] [2019-12-19 03:29:20,180 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:29:20,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:29:20,351 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:29:20,352 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640750184] [2019-12-19 03:29:20,352 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:29:20,352 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 03:29:20,353 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [298806583] [2019-12-19 03:29:20,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 03:29:20,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:29:20,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 03:29:20,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-19 03:29:20,356 INFO L87 Difference]: Start difference. First operand 85521 states and 400697 transitions. Second operand 5 states. [2019-12-19 03:29:25,208 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:29:25,209 INFO L93 Difference]: Finished difference Result 139649 states and 623533 transitions. [2019-12-19 03:29:25,209 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 03:29:25,209 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 51 [2019-12-19 03:29:25,210 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:29:25,963 INFO L225 Difference]: With dead ends: 139649 [2019-12-19 03:29:25,963 INFO L226 Difference]: Without dead ends: 138929 [2019-12-19 03:29:25,964 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-19 03:29:27,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 138929 states. [2019-12-19 03:29:30,288 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 138929 to 132785. [2019-12-19 03:29:30,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 132785 states. [2019-12-19 03:29:30,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 132785 states to 132785 states and 597161 transitions. [2019-12-19 03:29:30,767 INFO L78 Accepts]: Start accepts. Automaton has 132785 states and 597161 transitions. Word has length 51 [2019-12-19 03:29:30,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:29:30,768 INFO L462 AbstractCegarLoop]: Abstraction has 132785 states and 597161 transitions. [2019-12-19 03:29:30,768 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 03:29:30,768 INFO L276 IsEmpty]: Start isEmpty. Operand 132785 states and 597161 transitions. [2019-12-19 03:29:30,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-12-19 03:29:30,778 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:29:30,778 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:29:30,778 INFO L410 AbstractCegarLoop]: === Iteration 3 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:29:30,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:29:30,779 INFO L82 PathProgramCache]: Analyzing trace with hash 1932443739, now seen corresponding path program 1 times [2019-12-19 03:29:30,779 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:29:30,779 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1006141190] [2019-12-19 03:29:30,779 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:29:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:29:30,864 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:29:30,865 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1006141190] [2019-12-19 03:29:30,865 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:29:30,865 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 03:29:30,866 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150549850] [2019-12-19 03:29:30,866 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 03:29:30,866 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:29:30,867 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 03:29:30,867 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-12-19 03:29:30,867 INFO L87 Difference]: Start difference. First operand 132785 states and 597161 transitions. Second operand 5 states. [2019-12-19 03:29:36,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:29:36,502 INFO L93 Difference]: Finished difference Result 161553 states and 717781 transitions. [2019-12-19 03:29:36,502 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 03:29:36,503 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 52 [2019-12-19 03:29:36,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:29:37,762 INFO L225 Difference]: With dead ends: 161553 [2019-12-19 03:29:37,762 INFO L226 Difference]: Without dead ends: 160753 [2019-12-19 03:29:37,763 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-19 03:29:38,613 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160753 states. [2019-12-19 03:29:46,334 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160753 to 139077. [2019-12-19 03:29:46,334 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 139077 states. [2019-12-19 03:29:46,805 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139077 states to 139077 states and 623064 transitions. [2019-12-19 03:29:46,806 INFO L78 Accepts]: Start accepts. Automaton has 139077 states and 623064 transitions. Word has length 52 [2019-12-19 03:29:46,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:29:46,806 INFO L462 AbstractCegarLoop]: Abstraction has 139077 states and 623064 transitions. [2019-12-19 03:29:46,807 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 03:29:46,807 INFO L276 IsEmpty]: Start isEmpty. Operand 139077 states and 623064 transitions. [2019-12-19 03:29:46,843 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-12-19 03:29:46,843 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:29:46,843 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:29:46,844 INFO L410 AbstractCegarLoop]: === Iteration 4 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:29:46,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:29:46,844 INFO L82 PathProgramCache]: Analyzing trace with hash 389383967, now seen corresponding path program 1 times [2019-12-19 03:29:46,844 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:29:46,845 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584968988] [2019-12-19 03:29:46,845 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:29:46,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:29:46,934 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:29:46,934 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584968988] [2019-12-19 03:29:46,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:29:46,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 03:29:46,936 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856433896] [2019-12-19 03:29:46,936 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 03:29:46,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:29:46,938 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 03:29:46,938 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 03:29:46,939 INFO L87 Difference]: Start difference. First operand 139077 states and 623064 transitions. Second operand 6 states. [2019-12-19 03:29:49,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:29:49,806 INFO L93 Difference]: Finished difference Result 183581 states and 805090 transitions. [2019-12-19 03:29:49,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2019-12-19 03:29:49,806 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 59 [2019-12-19 03:29:49,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:29:50,340 INFO L225 Difference]: With dead ends: 183581 [2019-12-19 03:29:50,340 INFO L226 Difference]: Without dead ends: 182861 [2019-12-19 03:29:50,341 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2019-12-19 03:29:57,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 182861 states. [2019-12-19 03:29:59,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 182861 to 134929. [2019-12-19 03:29:59,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 134929 states. [2019-12-19 03:30:01,528 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 134929 states to 134929 states and 604573 transitions. [2019-12-19 03:30:01,528 INFO L78 Accepts]: Start accepts. Automaton has 134929 states and 604573 transitions. Word has length 59 [2019-12-19 03:30:01,529 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:30:01,529 INFO L462 AbstractCegarLoop]: Abstraction has 134929 states and 604573 transitions. [2019-12-19 03:30:01,529 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 03:30:01,529 INFO L276 IsEmpty]: Start isEmpty. Operand 134929 states and 604573 transitions. [2019-12-19 03:30:01,614 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-12-19 03:30:01,615 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:30:01,615 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:30:01,615 INFO L410 AbstractCegarLoop]: === Iteration 5 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:30:01,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:30:01,616 INFO L82 PathProgramCache]: Analyzing trace with hash -1647505986, now seen corresponding path program 1 times [2019-12-19 03:30:01,616 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:30:01,616 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2065746250] [2019-12-19 03:30:01,616 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:30:01,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:30:01,713 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:30:01,714 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2065746250] [2019-12-19 03:30:01,714 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:30:01,714 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 03:30:01,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63003640] [2019-12-19 03:30:01,715 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 03:30:01,715 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:30:01,715 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 03:30:01,716 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-12-19 03:30:01,716 INFO L87 Difference]: Start difference. First operand 134929 states and 604573 transitions. Second operand 6 states. [2019-12-19 03:30:03,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:30:03,201 INFO L93 Difference]: Finished difference Result 185113 states and 812727 transitions. [2019-12-19 03:30:03,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-19 03:30:03,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 66 [2019-12-19 03:30:03,202 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:30:10,536 INFO L225 Difference]: With dead ends: 185113 [2019-12-19 03:30:10,537 INFO L226 Difference]: Without dead ends: 183913 [2019-12-19 03:30:10,537 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=37, Invalid=95, Unknown=0, NotChecked=0, Total=132 [2019-12-19 03:30:11,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183913 states. [2019-12-19 03:30:14,426 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183913 to 160429. [2019-12-19 03:30:14,427 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 160429 states. [2019-12-19 03:30:15,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160429 states to 160429 states and 711514 transitions. [2019-12-19 03:30:15,008 INFO L78 Accepts]: Start accepts. Automaton has 160429 states and 711514 transitions. Word has length 66 [2019-12-19 03:30:15,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:30:15,008 INFO L462 AbstractCegarLoop]: Abstraction has 160429 states and 711514 transitions. [2019-12-19 03:30:15,008 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 03:30:15,009 INFO L276 IsEmpty]: Start isEmpty. Operand 160429 states and 711514 transitions. [2019-12-19 03:30:15,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2019-12-19 03:30:15,112 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:30:15,112 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:30:15,113 INFO L410 AbstractCegarLoop]: === Iteration 6 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:30:15,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:30:15,113 INFO L82 PathProgramCache]: Analyzing trace with hash -1697234032, now seen corresponding path program 1 times [2019-12-19 03:30:15,113 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:30:15,113 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [802677745] [2019-12-19 03:30:15,113 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:30:15,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:30:15,164 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:30:15,165 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [802677745] [2019-12-19 03:30:15,165 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:30:15,165 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-19 03:30:15,166 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908777868] [2019-12-19 03:30:15,166 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-19 03:30:15,166 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:30:15,166 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-19 03:30:15,167 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 03:30:15,167 INFO L87 Difference]: Start difference. First operand 160429 states and 711514 transitions. Second operand 3 states. [2019-12-19 03:30:17,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:30:17,411 INFO L93 Difference]: Finished difference Result 202237 states and 884074 transitions. [2019-12-19 03:30:17,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-19 03:30:17,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2019-12-19 03:30:17,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:30:25,164 INFO L225 Difference]: With dead ends: 202237 [2019-12-19 03:30:25,164 INFO L226 Difference]: Without dead ends: 202237 [2019-12-19 03:30:25,164 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 03:30:26,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 202237 states. [2019-12-19 03:30:29,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 202237 to 176149. [2019-12-19 03:30:29,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 176149 states. [2019-12-19 03:30:30,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176149 states to 176149 states and 777056 transitions. [2019-12-19 03:30:30,859 INFO L78 Accepts]: Start accepts. Automaton has 176149 states and 777056 transitions. Word has length 68 [2019-12-19 03:30:30,860 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:30:30,860 INFO L462 AbstractCegarLoop]: Abstraction has 176149 states and 777056 transitions. [2019-12-19 03:30:30,860 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-19 03:30:30,860 INFO L276 IsEmpty]: Start isEmpty. Operand 176149 states and 777056 transitions. [2019-12-19 03:30:31,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2019-12-19 03:30:31,029 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:30:31,029 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:30:31,029 INFO L410 AbstractCegarLoop]: === Iteration 7 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:30:31,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:30:31,030 INFO L82 PathProgramCache]: Analyzing trace with hash 865455602, now seen corresponding path program 1 times [2019-12-19 03:30:31,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:30:31,030 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412648673] [2019-12-19 03:30:31,030 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:30:31,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:30:31,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:30:31,170 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [412648673] [2019-12-19 03:30:31,170 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:30:31,170 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 03:30:31,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052227234] [2019-12-19 03:30:31,171 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 03:30:31,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:30:31,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 03:30:31,172 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 03:30:31,172 INFO L87 Difference]: Start difference. First operand 176149 states and 777056 transitions. Second operand 7 states. [2019-12-19 03:30:39,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:30:39,653 INFO L93 Difference]: Finished difference Result 224101 states and 971732 transitions. [2019-12-19 03:30:39,653 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 03:30:39,653 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 72 [2019-12-19 03:30:39,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:30:40,391 INFO L225 Difference]: With dead ends: 224101 [2019-12-19 03:30:40,391 INFO L226 Difference]: Without dead ends: 222901 [2019-12-19 03:30:40,392 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 70 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=91, Invalid=289, Unknown=0, NotChecked=0, Total=380 [2019-12-19 03:30:42,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222901 states. [2019-12-19 03:30:45,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222901 to 180725. [2019-12-19 03:30:45,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 180725 states. [2019-12-19 03:30:46,569 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180725 states to 180725 states and 796148 transitions. [2019-12-19 03:30:46,570 INFO L78 Accepts]: Start accepts. Automaton has 180725 states and 796148 transitions. Word has length 72 [2019-12-19 03:30:46,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:30:46,570 INFO L462 AbstractCegarLoop]: Abstraction has 180725 states and 796148 transitions. [2019-12-19 03:30:46,571 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 03:30:46,571 INFO L276 IsEmpty]: Start isEmpty. Operand 180725 states and 796148 transitions. [2019-12-19 03:30:46,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2019-12-19 03:30:46,732 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:30:46,732 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:30:46,733 INFO L410 AbstractCegarLoop]: === Iteration 8 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:30:46,733 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:30:46,733 INFO L82 PathProgramCache]: Analyzing trace with hash 1065266562, now seen corresponding path program 1 times [2019-12-19 03:30:46,733 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:30:46,733 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1642807410] [2019-12-19 03:30:46,734 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:30:46,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:30:46,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:30:46,849 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1642807410] [2019-12-19 03:30:46,849 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:30:46,850 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 03:30:46,850 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [552657923] [2019-12-19 03:30:46,850 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 03:30:46,850 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:30:46,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 03:30:46,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 03:30:46,851 INFO L87 Difference]: Start difference. First operand 180725 states and 796148 transitions. Second operand 7 states. [2019-12-19 03:30:48,103 WARN L192 SmtUtils]: Spent 1.17 s on a formula simplification that was a NOOP. DAG size: 7 [2019-12-19 03:30:57,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:30:57,690 INFO L93 Difference]: Finished difference Result 220861 states and 957730 transitions. [2019-12-19 03:30:57,690 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 03:30:57,690 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 73 [2019-12-19 03:30:57,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:30:58,475 INFO L225 Difference]: With dead ends: 220861 [2019-12-19 03:30:58,475 INFO L226 Difference]: Without dead ends: 219861 [2019-12-19 03:30:58,476 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=106, Invalid=356, Unknown=0, NotChecked=0, Total=462 [2019-12-19 03:30:59,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219861 states. [2019-12-19 03:31:03,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219861 to 184237. [2019-12-19 03:31:03,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 184237 states. [2019-12-19 03:31:04,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184237 states to 184237 states and 810266 transitions. [2019-12-19 03:31:04,559 INFO L78 Accepts]: Start accepts. Automaton has 184237 states and 810266 transitions. Word has length 73 [2019-12-19 03:31:04,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:31:04,559 INFO L462 AbstractCegarLoop]: Abstraction has 184237 states and 810266 transitions. [2019-12-19 03:31:04,559 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 03:31:04,559 INFO L276 IsEmpty]: Start isEmpty. Operand 184237 states and 810266 transitions. [2019-12-19 03:31:04,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-19 03:31:04,727 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:31:04,727 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:31:04,728 INFO L410 AbstractCegarLoop]: === Iteration 9 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:31:04,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:31:04,728 INFO L82 PathProgramCache]: Analyzing trace with hash -1937054117, now seen corresponding path program 1 times [2019-12-19 03:31:04,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:31:04,728 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [784780221] [2019-12-19 03:31:04,728 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:31:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:31:04,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:31:04,856 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [784780221] [2019-12-19 03:31:04,856 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:31:04,856 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 03:31:04,856 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854716620] [2019-12-19 03:31:04,857 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 03:31:04,857 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:31:04,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 03:31:04,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 03:31:04,857 INFO L87 Difference]: Start difference. First operand 184237 states and 810266 transitions. Second operand 6 states. [2019-12-19 03:31:12,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:31:12,703 INFO L93 Difference]: Finished difference Result 262765 states and 1148126 transitions. [2019-12-19 03:31:12,703 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 03:31:12,703 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 75 [2019-12-19 03:31:12,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:31:13,579 INFO L225 Difference]: With dead ends: 262765 [2019-12-19 03:31:13,579 INFO L226 Difference]: Without dead ends: 260189 [2019-12-19 03:31:13,580 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-12-19 03:31:14,786 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260189 states. [2019-12-19 03:31:24,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260189 to 224437. [2019-12-19 03:31:24,421 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224437 states. [2019-12-19 03:31:26,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224437 states to 224437 states and 986536 transitions. [2019-12-19 03:31:26,482 INFO L78 Accepts]: Start accepts. Automaton has 224437 states and 986536 transitions. Word has length 75 [2019-12-19 03:31:26,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:31:26,482 INFO L462 AbstractCegarLoop]: Abstraction has 224437 states and 986536 transitions. [2019-12-19 03:31:26,482 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 03:31:26,482 INFO L276 IsEmpty]: Start isEmpty. Operand 224437 states and 986536 transitions. [2019-12-19 03:31:26,728 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-19 03:31:26,728 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:31:26,729 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:31:26,729 INFO L410 AbstractCegarLoop]: === Iteration 10 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:31:26,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:31:26,729 INFO L82 PathProgramCache]: Analyzing trace with hash -975440100, now seen corresponding path program 1 times [2019-12-19 03:31:26,729 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:31:26,729 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [143391286] [2019-12-19 03:31:26,729 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:31:26,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:31:26,842 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:31:26,842 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [143391286] [2019-12-19 03:31:26,843 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:31:26,843 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 03:31:26,843 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144316450] [2019-12-19 03:31:26,843 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 03:31:26,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:31:26,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 03:31:26,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-12-19 03:31:26,844 INFO L87 Difference]: Start difference. First operand 224437 states and 986536 transitions. Second operand 7 states. [2019-12-19 03:31:31,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 03:31:31,158 INFO L93 Difference]: Finished difference Result 332389 states and 1421212 transitions. [2019-12-19 03:31:31,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-12-19 03:31:31,158 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 75 [2019-12-19 03:31:31,158 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 03:31:42,148 INFO L225 Difference]: With dead ends: 332389 [2019-12-19 03:31:42,149 INFO L226 Difference]: Without dead ends: 332389 [2019-12-19 03:31:42,149 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2019-12-19 03:31:43,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332389 states. [2019-12-19 03:31:49,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332389 to 304585. [2019-12-19 03:31:49,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 304585 states. [2019-12-19 03:31:52,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 304585 states to 304585 states and 1311827 transitions. [2019-12-19 03:31:52,453 INFO L78 Accepts]: Start accepts. Automaton has 304585 states and 1311827 transitions. Word has length 75 [2019-12-19 03:31:52,454 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 03:31:52,454 INFO L462 AbstractCegarLoop]: Abstraction has 304585 states and 1311827 transitions. [2019-12-19 03:31:52,454 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 03:31:52,454 INFO L276 IsEmpty]: Start isEmpty. Operand 304585 states and 1311827 transitions. [2019-12-19 03:31:52,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2019-12-19 03:31:52,883 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 03:31:52,883 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 03:31:52,884 INFO L410 AbstractCegarLoop]: === Iteration 11 === [P2Err0ASSERT_VIOLATIONERROR_FUNCTION, P2Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 03:31:52,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 03:31:52,884 INFO L82 PathProgramCache]: Analyzing trace with hash 269324381, now seen corresponding path program 1 times [2019-12-19 03:31:52,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 03:31:52,884 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673823020] [2019-12-19 03:31:52,884 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 03:31:52,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 03:31:52,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 03:31:52,943 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673823020] [2019-12-19 03:31:52,944 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 03:31:52,944 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-19 03:31:52,944 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [953611695] [2019-12-19 03:31:52,944 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-19 03:31:52,945 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 03:31:52,945 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-19 03:31:52,945 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-19 03:31:52,945 INFO L87 Difference]: Start difference. First operand 304585 states and 1311827 transitions. Second operand 3 states. Received shutdown request... [2019-12-19 03:32:01,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-19 03:32:01,294 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-19 03:32:01,300 WARN L227 ceAbstractionStarter]: Timeout [2019-12-19 03:32:01,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 03:32:01 BasicIcfg [2019-12-19 03:32:01,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 03:32:01,302 INFO L168 Benchmark]: Toolchain (without parser) took 189590.50 ms. Allocated memory was 137.9 MB in the beginning and 5.0 GB in the end (delta: 4.9 GB). Free memory was 100.8 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-12-19 03:32:01,303 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-19 03:32:01,304 INFO L168 Benchmark]: CACSL2BoogieTranslator took 842.08 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 155.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. [2019-12-19 03:32:01,305 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.99 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 152.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-19 03:32:01,305 INFO L168 Benchmark]: Boogie Preprocessor took 44.02 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 150.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. [2019-12-19 03:32:01,306 INFO L168 Benchmark]: RCFGBuilder took 824.20 ms. Allocated memory is still 201.9 MB. Free memory was 150.2 MB in the beginning and 104.2 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. [2019-12-19 03:32:01,307 INFO L168 Benchmark]: TraceAbstraction took 187802.84 ms. Allocated memory was 201.9 MB in the beginning and 5.0 GB in the end (delta: 4.8 GB). Free memory was 103.5 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. [2019-12-19 03:32:01,311 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 137.9 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 842.08 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 100.4 MB in the beginning and 155.5 MB in the end (delta: -55.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 71.99 ms. Allocated memory is still 201.9 MB. Free memory was 155.5 MB in the beginning and 152.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 44.02 ms. Allocated memory is still 201.9 MB. Free memory was 152.9 MB in the beginning and 150.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 824.20 ms. Allocated memory is still 201.9 MB. Free memory was 150.2 MB in the beginning and 104.2 MB in the end (delta: 46.0 MB). Peak memory consumption was 46.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 187802.84 ms. Allocated memory was 201.9 MB in the beginning and 5.0 GB in the end (delta: 4.8 GB). Free memory was 103.5 MB in the beginning and 3.3 GB in the end (delta: -3.2 GB). Peak memory consumption was 1.7 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while BasicCegarLoop was constructing difference of abstraction (304585states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (63808 states constructedinput type IntersectNwa). - TimeoutResultAtElement [Line: 4]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 4). Cancelled while BasicCegarLoop was constructing difference of abstraction (304585states) and FLOYD_HOARE automaton (currently 3 states, 3 states before enhancement),while ReachableStatesComputation was computing reachable states (63808 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 153 locations, 2 error locations. Result: TIMEOUT, OverallTime: 187.6s, OverallIterations: 11, TraceHistogramMax: 1, AutomataDifference: 90.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 3559 SDtfs, 4358 SDslu, 8594 SDs, 0 SdLazy, 3776 SolverSat, 293 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 127 GetRequests, 33 SyntacticMatches, 3 SemanticMatches, 91 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 1.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=304585occurred in iteration=10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 79.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 266680 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 710 NumberOfCodeBlocks, 710 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 699 ConstructedInterpolants, 0 QuantifiedInterpolants, 101871 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 11 InterpolantComputations, 11 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown