/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-SemanticLbe.epf -i ../../../trunk/examples/svcomp/pthread-atomic/lamport.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-4336eb1 [2019-12-27 00:47:58,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-27 00:47:58,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-27 00:47:58,718 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-27 00:47:58,718 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-27 00:47:58,719 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-27 00:47:58,720 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-27 00:47:58,722 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-27 00:47:58,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-27 00:47:58,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-27 00:47:58,726 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-27 00:47:58,727 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-27 00:47:58,727 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-27 00:47:58,728 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-27 00:47:58,729 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-27 00:47:58,730 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-27 00:47:58,731 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-27 00:47:58,732 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-27 00:47:58,733 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-27 00:47:58,735 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-27 00:47:58,736 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-27 00:47:58,737 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-27 00:47:58,738 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-27 00:47:58,739 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-27 00:47:58,741 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-27 00:47:58,741 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-27 00:47:58,742 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-27 00:47:58,742 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-27 00:47:58,743 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-27 00:47:58,744 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-27 00:47:58,744 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-27 00:47:58,745 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-27 00:47:58,745 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-27 00:47:58,746 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-27 00:47:58,747 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-27 00:47:58,747 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-27 00:47:58,748 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-27 00:47:58,748 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-27 00:47:58,748 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-27 00:47:58,751 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-27 00:47:58,751 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-27 00:47:58,752 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-SemanticLbe.epf [2019-12-27 00:47:58,773 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-27 00:47:58,774 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-27 00:47:58,776 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-27 00:47:58,776 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-27 00:47:58,776 INFO L138 SettingsManager]: * Use SBE=true [2019-12-27 00:47:58,776 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-27 00:47:58,776 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-27 00:47:58,777 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-27 00:47:58,777 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-27 00:47:58,777 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-27 00:47:58,778 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-27 00:47:58,778 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-27 00:47:58,778 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-27 00:47:58,779 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-27 00:47:58,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-27 00:47:58,779 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-27 00:47:58,779 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-27 00:47:58,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-27 00:47:58,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-27 00:47:58,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-27 00:47:58,780 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-27 00:47:58,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:47:58,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-27 00:47:58,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-27 00:47:58,781 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-27 00:47:58,781 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-27 00:47:58,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-27 00:47:58,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-27 00:47:58,782 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-27 00:47:59,051 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-27 00:47:59,071 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-27 00:47:59,074 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-27 00:47:59,076 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-27 00:47:59,076 INFO L275 PluginConnector]: CDTParser initialized [2019-12-27 00:47:59,077 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-atomic/lamport.i [2019-12-27 00:47:59,144 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2c2d2b1/5e3c6018ae0c4c38ab3e046491438c31/FLAG4cc426835 [2019-12-27 00:47:59,602 INFO L306 CDTParser]: Found 1 translation units. [2019-12-27 00:47:59,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-atomic/lamport.i [2019-12-27 00:47:59,619 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2c2d2b1/5e3c6018ae0c4c38ab3e046491438c31/FLAG4cc426835 [2019-12-27 00:47:59,912 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8a2c2d2b1/5e3c6018ae0c4c38ab3e046491438c31 [2019-12-27 00:47:59,923 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-27 00:47:59,926 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-27 00:47:59,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-27 00:47:59,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-27 00:47:59,933 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-27 00:47:59,934 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:47:59" (1/1) ... [2019-12-27 00:47:59,938 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@599183f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:47:59, skipping insertion in model container [2019-12-27 00:47:59,938 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.12 12:47:59" (1/1) ... [2019-12-27 00:47:59,947 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-27 00:48:00,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-27 00:48:00,486 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:48:00,500 INFO L203 MainTranslator]: Completed pre-run [2019-12-27 00:48:00,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-27 00:48:00,646 INFO L208 MainTranslator]: Completed translation [2019-12-27 00:48:00,647 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00 WrapperNode [2019-12-27 00:48:00,647 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-27 00:48:00,648 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-27 00:48:00,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-27 00:48:00,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-27 00:48:00,656 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,673 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,694 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-27 00:48:00,695 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-27 00:48:00,695 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-27 00:48:00,695 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-27 00:48:00,704 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,704 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,707 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,708 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,721 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... [2019-12-27 00:48:00,726 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-27 00:48:00,727 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-27 00:48:00,727 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-27 00:48:00,727 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-27 00:48:00,728 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-27 00:48:00,793 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-27 00:48:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-27 00:48:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-27 00:48:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-27 00:48:00,794 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-27 00:48:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-27 00:48:00,794 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-27 00:48:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-27 00:48:00,795 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-27 00:48:00,795 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-27 00:48:00,797 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-27 00:48:01,202 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-27 00:48:01,202 INFO L287 CfgBuilder]: Removed 12 assume(true) statements. [2019-12-27 00:48:01,204 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:48:01 BoogieIcfgContainer [2019-12-27 00:48:01,204 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-27 00:48:01,206 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-27 00:48:01,206 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-27 00:48:01,211 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-27 00:48:01,211 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.12 12:47:59" (1/3) ... [2019-12-27 00:48:01,212 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599dafd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:48:01, skipping insertion in model container [2019-12-27 00:48:01,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.12 12:48:00" (2/3) ... [2019-12-27 00:48:01,213 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@599dafd8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.12 12:48:01, skipping insertion in model container [2019-12-27 00:48:01,213 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.12 12:48:01" (3/3) ... [2019-12-27 00:48:01,218 INFO L109 eAbstractionObserver]: Analyzing ICFG lamport.i [2019-12-27 00:48:01,230 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-27 00:48:01,230 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-27 00:48:01,239 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-12-27 00:48:01,240 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-27 00:48:01,268 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,268 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,269 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,269 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,270 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,270 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,272 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~_.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,272 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,273 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,274 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,274 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,278 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,279 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,279 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,279 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork0_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,285 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,285 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,285 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,286 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork1_~_.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-27 00:48:01,311 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-27 00:48:01,332 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-27 00:48:01,333 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-27 00:48:01,333 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-27 00:48:01,333 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-27 00:48:01,333 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-27 00:48:01,334 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-27 00:48:01,334 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-27 00:48:01,334 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-27 00:48:01,350 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 84 places, 103 transitions [2019-12-27 00:48:01,352 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 84 places, 103 transitions [2019-12-27 00:48:01,408 INFO L132 PetriNetUnfolder]: 25/103 cut-off events. [2019-12-27 00:48:01,408 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 00:48:01,416 INFO L76 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 103 events. 25/103 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 205 event pairs. 0/77 useless extension candidates. Maximal degree in co-relation 79. Up to 5 conditions per place. [2019-12-27 00:48:01,424 INFO L68 FinitePrefix]: Start finitePrefix. Operand has 84 places, 103 transitions [2019-12-27 00:48:01,449 INFO L132 PetriNetUnfolder]: 25/103 cut-off events. [2019-12-27 00:48:01,449 INFO L133 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2019-12-27 00:48:01,453 INFO L76 FinitePrefix]: Finished finitePrefix Result has 114 conditions, 103 events. 25/103 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 205 event pairs. 0/77 useless extension candidates. Maximal degree in co-relation 79. Up to 5 conditions per place. [2019-12-27 00:48:01,460 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 3196 [2019-12-27 00:48:01,461 INFO L170 etLargeBlockEncoding]: Semantic Check. [2019-12-27 00:48:02,860 WARN L192 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2019-12-27 00:48:02,985 INFO L206 etLargeBlockEncoding]: Checked pairs total: 9503 [2019-12-27 00:48:02,986 INFO L214 etLargeBlockEncoding]: Total number of compositions: 44 [2019-12-27 00:48:02,989 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 51 places, 63 transitions [2019-12-27 00:48:03,040 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 719 states. [2019-12-27 00:48:03,042 INFO L276 IsEmpty]: Start isEmpty. Operand 719 states. [2019-12-27 00:48:03,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-27 00:48:03,048 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:03,049 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-27 00:48:03,050 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:03,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:03,056 INFO L82 PathProgramCache]: Analyzing trace with hash 14012195, now seen corresponding path program 1 times [2019-12-27 00:48:03,065 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:03,065 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620463787] [2019-12-27 00:48:03,066 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:03,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:03,212 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:03,213 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620463787] [2019-12-27 00:48:03,214 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:03,214 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:48:03,215 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1730781745] [2019-12-27 00:48:03,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-12-27 00:48:03,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:03,236 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-12-27 00:48:03,237 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 00:48:03,239 INFO L87 Difference]: Start difference. First operand 719 states. Second operand 2 states. [2019-12-27 00:48:03,295 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:03,296 INFO L93 Difference]: Finished difference Result 719 states and 2103 transitions. [2019-12-27 00:48:03,296 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-12-27 00:48:03,298 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 4 [2019-12-27 00:48:03,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:03,325 INFO L225 Difference]: With dead ends: 719 [2019-12-27 00:48:03,325 INFO L226 Difference]: Without dead ends: 680 [2019-12-27 00:48:03,327 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-12-27 00:48:03,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 680 states. [2019-12-27 00:48:03,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 680 to 680. [2019-12-27 00:48:03,419 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 680 states. [2019-12-27 00:48:03,424 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 2018 transitions. [2019-12-27 00:48:03,426 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 2018 transitions. Word has length 4 [2019-12-27 00:48:03,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:03,426 INFO L462 AbstractCegarLoop]: Abstraction has 680 states and 2018 transitions. [2019-12-27 00:48:03,426 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-12-27 00:48:03,427 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 2018 transitions. [2019-12-27 00:48:03,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-12-27 00:48:03,428 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:03,428 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:03,429 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:03,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:03,429 INFO L82 PathProgramCache]: Analyzing trace with hash -870713509, now seen corresponding path program 1 times [2019-12-27 00:48:03,429 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:03,430 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1062131722] [2019-12-27 00:48:03,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:03,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:03,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:03,497 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1062131722] [2019-12-27 00:48:03,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:03,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:48:03,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097268041] [2019-12-27 00:48:03,499 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:03,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:03,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:03,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:03,500 INFO L87 Difference]: Start difference. First operand 680 states and 2018 transitions. Second operand 3 states. [2019-12-27 00:48:03,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:03,549 INFO L93 Difference]: Finished difference Result 685 states and 1989 transitions. [2019-12-27 00:48:03,549 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:03,549 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2019-12-27 00:48:03,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:03,563 INFO L225 Difference]: With dead ends: 685 [2019-12-27 00:48:03,563 INFO L226 Difference]: Without dead ends: 568 [2019-12-27 00:48:03,566 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:03,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2019-12-27 00:48:03,621 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 550. [2019-12-27 00:48:03,621 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 550 states. [2019-12-27 00:48:03,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 1644 transitions. [2019-12-27 00:48:03,627 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 1644 transitions. Word has length 9 [2019-12-27 00:48:03,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:03,628 INFO L462 AbstractCegarLoop]: Abstraction has 550 states and 1644 transitions. [2019-12-27 00:48:03,628 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:03,628 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 1644 transitions. [2019-12-27 00:48:03,630 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-12-27 00:48:03,630 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:03,630 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:03,630 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:03,631 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:03,631 INFO L82 PathProgramCache]: Analyzing trace with hash 1073713561, now seen corresponding path program 1 times [2019-12-27 00:48:03,631 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:03,632 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1317827154] [2019-12-27 00:48:03,632 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:03,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:03,690 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:03,690 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1317827154] [2019-12-27 00:48:03,690 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:03,691 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-27 00:48:03,691 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042267191] [2019-12-27 00:48:03,691 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:03,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:03,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:03,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:03,692 INFO L87 Difference]: Start difference. First operand 550 states and 1644 transitions. Second operand 3 states. [2019-12-27 00:48:03,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:03,732 INFO L93 Difference]: Finished difference Result 531 states and 1570 transitions. [2019-12-27 00:48:03,734 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:03,735 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2019-12-27 00:48:03,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:03,738 INFO L225 Difference]: With dead ends: 531 [2019-12-27 00:48:03,738 INFO L226 Difference]: Without dead ends: 408 [2019-12-27 00:48:03,739 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:03,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 408 states. [2019-12-27 00:48:03,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 408 to 408. [2019-12-27 00:48:03,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 408 states. [2019-12-27 00:48:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 408 states to 408 states and 1242 transitions. [2019-12-27 00:48:03,756 INFO L78 Accepts]: Start accepts. Automaton has 408 states and 1242 transitions. Word has length 11 [2019-12-27 00:48:03,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:03,758 INFO L462 AbstractCegarLoop]: Abstraction has 408 states and 1242 transitions. [2019-12-27 00:48:03,758 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:03,759 INFO L276 IsEmpty]: Start isEmpty. Operand 408 states and 1242 transitions. [2019-12-27 00:48:03,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:48:03,766 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:03,766 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:03,766 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:03,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:03,767 INFO L82 PathProgramCache]: Analyzing trace with hash -783095282, now seen corresponding path program 1 times [2019-12-27 00:48:03,768 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:03,768 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204560671] [2019-12-27 00:48:03,769 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:03,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:03,845 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:03,845 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204560671] [2019-12-27 00:48:03,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:03,846 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:03,846 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [661304534] [2019-12-27 00:48:03,847 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:03,847 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:03,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:03,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:03,848 INFO L87 Difference]: Start difference. First operand 408 states and 1242 transitions. Second operand 3 states. [2019-12-27 00:48:03,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:03,920 INFO L93 Difference]: Finished difference Result 538 states and 1566 transitions. [2019-12-27 00:48:03,920 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:03,920 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 00:48:03,921 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:03,924 INFO L225 Difference]: With dead ends: 538 [2019-12-27 00:48:03,924 INFO L226 Difference]: Without dead ends: 424 [2019-12-27 00:48:03,925 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 [2019-12-27 00:48:03,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 424 states. [2019-12-27 00:48:03,935 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 424 to 398. [2019-12-27 00:48:03,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 398 states. [2019-12-27 00:48:03,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 1161 transitions. [2019-12-27 00:48:03,938 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 1161 transitions. Word has length 17 [2019-12-27 00:48:03,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:03,938 INFO L462 AbstractCegarLoop]: Abstraction has 398 states and 1161 transitions. [2019-12-27 00:48:03,939 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:03,939 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 1161 transitions. [2019-12-27 00:48:03,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:48:03,940 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:03,940 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:03,940 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:03,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:03,941 INFO L82 PathProgramCache]: Analyzing trace with hash 1243088422, now seen corresponding path program 1 times [2019-12-27 00:48:03,941 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:03,941 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868964674] [2019-12-27 00:48:03,941 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:03,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:04,018 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:04,019 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868964674] [2019-12-27 00:48:04,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:04,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:04,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23805703] [2019-12-27 00:48:04,021 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:04,021 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:04,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:04,022 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:04,022 INFO L87 Difference]: Start difference. First operand 398 states and 1161 transitions. Second operand 3 states. [2019-12-27 00:48:04,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:04,061 INFO L93 Difference]: Finished difference Result 702 states and 2033 transitions. [2019-12-27 00:48:04,061 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:04,062 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 00:48:04,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:04,067 INFO L225 Difference]: With dead ends: 702 [2019-12-27 00:48:04,068 INFO L226 Difference]: Without dead ends: 702 [2019-12-27 00:48:04,068 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 [2019-12-27 00:48:04,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 702 states. [2019-12-27 00:48:04,084 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 702 to 422. [2019-12-27 00:48:04,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2019-12-27 00:48:04,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 1239 transitions. [2019-12-27 00:48:04,086 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 1239 transitions. Word has length 17 [2019-12-27 00:48:04,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:04,087 INFO L462 AbstractCegarLoop]: Abstraction has 422 states and 1239 transitions. [2019-12-27 00:48:04,087 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:04,087 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 1239 transitions. [2019-12-27 00:48:04,088 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:48:04,088 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:04,089 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:04,092 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:04,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:04,093 INFO L82 PathProgramCache]: Analyzing trace with hash -1398088036, now seen corresponding path program 2 times [2019-12-27 00:48:04,094 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:04,101 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741687220] [2019-12-27 00:48:04,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:04,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:04,176 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741687220] [2019-12-27 00:48:04,177 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:04,177 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:04,177 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225283525] [2019-12-27 00:48:04,177 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:04,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:04,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:04,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:04,179 INFO L87 Difference]: Start difference. First operand 422 states and 1239 transitions. Second operand 3 states. [2019-12-27 00:48:04,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:04,213 INFO L93 Difference]: Finished difference Result 650 states and 1805 transitions. [2019-12-27 00:48:04,214 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:04,214 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 00:48:04,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:04,221 INFO L225 Difference]: With dead ends: 650 [2019-12-27 00:48:04,221 INFO L226 Difference]: Without dead ends: 642 [2019-12-27 00:48:04,221 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 [2019-12-27 00:48:04,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 642 states. [2019-12-27 00:48:04,239 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 642 to 456. [2019-12-27 00:48:04,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 456 states. [2019-12-27 00:48:04,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 1316 transitions. [2019-12-27 00:48:04,243 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 1316 transitions. Word has length 17 [2019-12-27 00:48:04,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:04,244 INFO L462 AbstractCegarLoop]: Abstraction has 456 states and 1316 transitions. [2019-12-27 00:48:04,244 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:04,244 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 1316 transitions. [2019-12-27 00:48:04,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-12-27 00:48:04,246 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:04,246 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:04,246 INFO L410 AbstractCegarLoop]: === Iteration 7 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:04,246 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:04,247 INFO L82 PathProgramCache]: Analyzing trace with hash -1301572, now seen corresponding path program 2 times [2019-12-27 00:48:04,247 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:04,247 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829134637] [2019-12-27 00:48:04,247 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:04,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:04,270 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:04,270 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829134637] [2019-12-27 00:48:04,271 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:04,271 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:04,271 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25692450] [2019-12-27 00:48:04,271 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:04,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:04,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:04,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:04,272 INFO L87 Difference]: Start difference. First operand 456 states and 1316 transitions. Second operand 3 states. [2019-12-27 00:48:04,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:04,316 INFO L93 Difference]: Finished difference Result 406 states and 1059 transitions. [2019-12-27 00:48:04,316 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:04,316 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 17 [2019-12-27 00:48:04,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:04,349 INFO L225 Difference]: With dead ends: 406 [2019-12-27 00:48:04,349 INFO L226 Difference]: Without dead ends: 254 [2019-12-27 00:48:04,349 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 [2019-12-27 00:48:04,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2019-12-27 00:48:04,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 216. [2019-12-27 00:48:04,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 216 states. [2019-12-27 00:48:04,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 520 transitions. [2019-12-27 00:48:04,356 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 520 transitions. Word has length 17 [2019-12-27 00:48:04,357 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:04,357 INFO L462 AbstractCegarLoop]: Abstraction has 216 states and 520 transitions. [2019-12-27 00:48:04,357 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:04,357 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 520 transitions. [2019-12-27 00:48:04,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:48:04,358 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:04,358 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:04,358 INFO L410 AbstractCegarLoop]: === Iteration 8 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:04,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:04,359 INFO L82 PathProgramCache]: Analyzing trace with hash 567307087, now seen corresponding path program 1 times [2019-12-27 00:48:04,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:04,359 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328843967] [2019-12-27 00:48:04,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:04,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:04,388 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:04,388 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328843967] [2019-12-27 00:48:04,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:04,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:04,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785521948] [2019-12-27 00:48:04,390 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:04,390 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:04,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:04,390 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:04,390 INFO L87 Difference]: Start difference. First operand 216 states and 520 transitions. Second operand 3 states. [2019-12-27 00:48:04,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:04,405 INFO L93 Difference]: Finished difference Result 224 states and 530 transitions. [2019-12-27 00:48:04,407 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:04,407 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-27 00:48:04,408 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:04,410 INFO L225 Difference]: With dead ends: 224 [2019-12-27 00:48:04,410 INFO L226 Difference]: Without dead ends: 208 [2019-12-27 00:48:04,410 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 [2019-12-27 00:48:04,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2019-12-27 00:48:04,416 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 208. [2019-12-27 00:48:04,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 208 states. [2019-12-27 00:48:04,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 496 transitions. [2019-12-27 00:48:04,417 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 496 transitions. Word has length 19 [2019-12-27 00:48:04,418 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:04,418 INFO L462 AbstractCegarLoop]: Abstraction has 208 states and 496 transitions. [2019-12-27 00:48:04,418 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:04,418 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 496 transitions. [2019-12-27 00:48:04,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-12-27 00:48:04,419 INFO L403 BasicCegarLoop]: Found error trace [2019-12-27 00:48:04,419 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-27 00:48:04,419 INFO L410 AbstractCegarLoop]: === Iteration 9 === [thr2Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr2Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-27 00:48:04,419 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-27 00:48:04,420 INFO L82 PathProgramCache]: Analyzing trace with hash 684902644, now seen corresponding path program 1 times [2019-12-27 00:48:04,420 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-27 00:48:04,420 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587007710] [2019-12-27 00:48:04,421 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-27 00:48:04,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-27 00:48:04,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-27 00:48:04,476 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587007710] [2019-12-27 00:48:04,476 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-27 00:48:04,476 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-27 00:48:04,477 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139539290] [2019-12-27 00:48:04,477 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-27 00:48:04,477 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-27 00:48:04,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-27 00:48:04,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-27 00:48:04,479 INFO L87 Difference]: Start difference. First operand 208 states and 496 transitions. Second operand 3 states. [2019-12-27 00:48:04,492 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-27 00:48:04,492 INFO L93 Difference]: Finished difference Result 142 states and 367 transitions. [2019-12-27 00:48:04,493 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-27 00:48:04,493 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-12-27 00:48:04,493 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-27 00:48:04,493 INFO L225 Difference]: With dead ends: 142 [2019-12-27 00:48:04,493 INFO L226 Difference]: Without dead ends: 0 [2019-12-27 00:48:04,494 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 [2019-12-27 00:48:04,494 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-27 00:48:04,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-27 00:48:04,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-27 00:48:04,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-27 00:48:04,495 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2019-12-27 00:48:04,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-27 00:48:04,495 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-27 00:48:04,495 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-27 00:48:04,496 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-27 00:48:04,496 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-27 00:48:04,500 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.12 12:48:04 BasicIcfg [2019-12-27 00:48:04,500 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-27 00:48:04,501 INFO L168 Benchmark]: Toolchain (without parser) took 4576.97 ms. Allocated memory was 137.9 MB in the beginning and 248.5 MB in the end (delta: 110.6 MB). Free memory was 100.0 MB in the beginning and 191.9 MB in the end (delta: -91.9 MB). Peak memory consumption was 18.8 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:04,502 INFO L168 Benchmark]: CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2019-12-27 00:48:04,503 INFO L168 Benchmark]: CACSL2BoogieTranslator took 719.36 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.6 MB in the beginning and 161.6 MB in the end (delta: -62.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:04,504 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.87 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:04,505 INFO L168 Benchmark]: Boogie Preprocessor took 31.62 ms. Allocated memory is still 201.9 MB. Free memory was 159.6 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:04,506 INFO L168 Benchmark]: RCFGBuilder took 477.89 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 134.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. [2019-12-27 00:48:04,506 INFO L168 Benchmark]: TraceAbstraction took 3294.19 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 134.0 MB in the beginning and 191.9 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 7.1 GB. [2019-12-27 00:48:04,511 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.45 ms. Allocated memory is still 137.9 MB. Free memory was 119.8 MB in the beginning and 119.6 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 719.36 ms. Allocated memory was 137.9 MB in the beginning and 201.9 MB in the end (delta: 64.0 MB). Free memory was 99.6 MB in the beginning and 161.6 MB in the end (delta: -62.0 MB). Peak memory consumption was 24.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.87 ms. Allocated memory is still 201.9 MB. Free memory was 161.6 MB in the beginning and 159.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 31.62 ms. Allocated memory is still 201.9 MB. Free memory was 159.6 MB in the beginning and 158.2 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 477.89 ms. Allocated memory is still 201.9 MB. Free memory was 158.2 MB in the beginning and 134.7 MB in the end (delta: 23.5 MB). Peak memory consumption was 23.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3294.19 ms. Allocated memory was 201.9 MB in the beginning and 248.5 MB in the end (delta: 46.7 MB). Free memory was 134.0 MB in the beginning and 191.9 MB in the end (delta: -57.8 MB). There was no memory consumed. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 1.6s, 84 ProgramPointsBefore, 51 ProgramPointsAfterwards, 103 TransitionsBefore, 63 TransitionsAfterwards, 3196 CoEnabledTransitionPairs, 6 FixpointIterations, 18 TrivialSequentialCompositions, 22 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 8 ChoiceCompositions, 1170 VarBasedMoverChecksPositive, 91 VarBasedMoverChecksNegative, 60 SemBasedMoverChecksPositive, 63 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.4s, 0 MoverChecksTotal, 9503 CheckedPairsTotal, 44 TotalNumberOfCompositions - PositiveResult [Line: 723]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 697]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 78 locations, 2 error locations. Result: SAFE, OverallTime: 3.1s, OverallIterations: 9, TraceHistogramMax: 1, AutomataDifference: 0.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 542 SDtfs, 221 SDslu, 266 SDs, 0 SdLazy, 93 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=719occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 548 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 130 NumberOfCodeBlocks, 130 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 121 ConstructedInterpolants, 0 QuantifiedInterpolants, 3005 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...