/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/safe019_pso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 04:54:15,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 04:54:15,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 04:54:15,727 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 04:54:15,728 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 04:54:15,729 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 04:54:15,730 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 04:54:15,732 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 04:54:15,734 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 04:54:15,735 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 04:54:15,736 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 04:54:15,737 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 04:54:15,738 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 04:54:15,739 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 04:54:15,740 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 04:54:15,741 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 04:54:15,742 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 04:54:15,743 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 04:54:15,744 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 04:54:15,746 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 04:54:15,748 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 04:54:15,749 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 04:54:15,750 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 04:54:15,751 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 04:54:15,753 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2019-12-19 04:54:15,757 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 04:54:15,757 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 04:54:15,758 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 04:54:15,759 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 04:54:15,760 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 04:54:15,760 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 04:54:15,761 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 04:54:15,761 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 04:54:15,762 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 04:54:15,762 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 04:54:15,763 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 04:54:15,764 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 04:54:15,779 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 04:54:15,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 04:54:15,780 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 04:54:15,781 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 04:54:15,781 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 04:54:15,781 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 04:54:15,781 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 04:54:15,781 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 04:54:15,782 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 04:54:15,782 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 04:54:15,782 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 04:54:15,782 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 04:54:15,783 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 04:54:15,783 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 04:54:15,783 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 04:54:15,783 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 04:54:15,783 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 04:54:15,784 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 04:54:15,784 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 04:54:15,784 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 04:54:15,784 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 04:54:15,784 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 04:54:15,785 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 04:54:15,785 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 04:54:15,785 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 04:54:15,785 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 04:54:15,785 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 04:54:15,786 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 04:54:15,786 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 04:54:15,786 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 04:54:16,093 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 04:54:16,106 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 04:54:16,110 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 04:54:16,111 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 04:54:16,112 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 04:54:16,113 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2019-12-19 04:54:16,174 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee928a445/9d49790dc05b4f26998182a176ed9b77/FLAG24bcb84aa [2019-12-19 04:54:16,735 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 04:54:16,736 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe019_pso.opt.i [2019-12-19 04:54:16,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee928a445/9d49790dc05b4f26998182a176ed9b77/FLAG24bcb84aa [2019-12-19 04:54:17,021 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ee928a445/9d49790dc05b4f26998182a176ed9b77 [2019-12-19 04:54:17,030 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 04:54:17,032 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 04:54:17,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 04:54:17,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 04:54:17,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 04:54:17,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f70aa57 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17, skipping insertion in model container [2019-12-19 04:54:17,041 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,049 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 04:54:17,091 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 04:54:17,614 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:54:17,629 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 04:54:17,711 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 04:54:17,786 INFO L208 MainTranslator]: Completed translation [2019-12-19 04:54:17,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17 WrapperNode [2019-12-19 04:54:17,787 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 04:54:17,787 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 04:54:17,788 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 04:54:17,788 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 04:54:17,797 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,817 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,840 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 04:54:17,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 04:54:17,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 04:54:17,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 04:54:17,850 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,850 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,853 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,854 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,861 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,863 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,865 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (1/1) ... [2019-12-19 04:54:17,868 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 04:54:17,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 04:54:17,869 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 04:54:17,869 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 04:54:17,870 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (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 04:54:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 04:54:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2019-12-19 04:54:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 04:54:17,925 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 04:54:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2019-12-19 04:54:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2019-12-19 04:54:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2019-12-19 04:54:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2019-12-19 04:54:17,926 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2019-12-19 04:54:17,926 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2019-12-19 04:54:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure P3 [2019-12-19 04:54:17,927 INFO L138 BoogieDeclarations]: Found implementation of procedure P3 [2019-12-19 04:54:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2019-12-19 04:54:17,927 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 04:54:17,927 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 04:54:17,929 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 04:54:18,328 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 04:54:18,328 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-12-19 04:54:18,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:54:18 BoogieIcfgContainer [2019-12-19 04:54:18,330 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 04:54:18,331 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 04:54:18,331 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 04:54:18,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 04:54:18,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 04:54:17" (1/3) ... [2019-12-19 04:54:18,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536cab82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:54:18, skipping insertion in model container [2019-12-19 04:54:18,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 04:54:17" (2/3) ... [2019-12-19 04:54:18,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@536cab82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 04:54:18, skipping insertion in model container [2019-12-19 04:54:18,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 04:54:18" (3/3) ... [2019-12-19 04:54:18,338 INFO L109 eAbstractionObserver]: Analyzing ICFG safe019_pso.opt.i [2019-12-19 04:54:18,348 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 04:54:18,348 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 04:54:18,355 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 04:54:18,356 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 04:54:18,388 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,389 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,389 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,390 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,390 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,391 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,391 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,391 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,391 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,392 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,392 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,392 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,393 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,393 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,393 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,394 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,394 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,394 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,394 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,395 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,395 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,395 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,396 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,400 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,400 WARN L315 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,400 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,401 WARN L315 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,406 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,406 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,407 WARN L315 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,407 WARN L315 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,410 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,411 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,411 WARN L315 ript$VariableManager]: TermVariabe |P3Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,411 WARN L315 ript$VariableManager]: TermVariabe P3Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,419 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,420 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,420 WARN L315 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork3_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,420 WARN L315 ript$VariableManager]: TermVariabe P0Thread1of1ForFork3_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 04:54:18,443 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 04:54:18,463 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 04:54:18,463 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 04:54:18,464 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 04:54:18,464 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 04:54:18,464 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 04:54:18,464 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 04:54:18,464 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 04:54:18,464 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 04:54:18,476 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 64 transitions [2019-12-19 04:54:18,789 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 5472 states. [2019-12-19 04:54:18,792 INFO L276 IsEmpty]: Start isEmpty. Operand 5472 states. [2019-12-19 04:54:18,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2019-12-19 04:54:18,816 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:18,818 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] [2019-12-19 04:54:18,818 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:18,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:18,825 INFO L82 PathProgramCache]: Analyzing trace with hash -1087170205, now seen corresponding path program 1 times [2019-12-19 04:54:18,836 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:18,836 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1755774327] [2019-12-19 04:54:18,836 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:19,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:19,283 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 04:54:19,284 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1755774327] [2019-12-19 04:54:19,285 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:19,285 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-12-19 04:54:19,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1665226378] [2019-12-19 04:54:19,291 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-19 04:54:19,291 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:19,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-19 04:54:19,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-19 04:54:19,308 INFO L87 Difference]: Start difference. First operand 5472 states. Second operand 4 states. [2019-12-19 04:54:19,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:19,464 INFO L93 Difference]: Finished difference Result 5709 states and 21934 transitions. [2019-12-19 04:54:19,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-19 04:54:19,466 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2019-12-19 04:54:19,466 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:19,507 INFO L225 Difference]: With dead ends: 5709 [2019-12-19 04:54:19,507 INFO L226 Difference]: Without dead ends: 2393 [2019-12-19 04:54:19,509 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:54:19,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2393 states. [2019-12-19 04:54:19,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2393 to 2393. [2019-12-19 04:54:19,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2393 states. [2019-12-19 04:54:19,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2393 states to 2393 states and 8937 transitions. [2019-12-19 04:54:19,696 INFO L78 Accepts]: Start accepts. Automaton has 2393 states and 8937 transitions. Word has length 35 [2019-12-19 04:54:19,697 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:19,697 INFO L462 AbstractCegarLoop]: Abstraction has 2393 states and 8937 transitions. [2019-12-19 04:54:19,698 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-19 04:54:19,698 INFO L276 IsEmpty]: Start isEmpty. Operand 2393 states and 8937 transitions. [2019-12-19 04:54:19,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2019-12-19 04:54:19,704 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:19,704 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] [2019-12-19 04:54:19,704 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:19,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:19,705 INFO L82 PathProgramCache]: Analyzing trace with hash 458963065, now seen corresponding path program 1 times [2019-12-19 04:54:19,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:19,706 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [241370552] [2019-12-19 04:54:19,706 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:19,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:19,900 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 04:54:19,901 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [241370552] [2019-12-19 04:54:19,902 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:19,902 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-12-19 04:54:19,902 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355368426] [2019-12-19 04:54:19,904 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-12-19 04:54:19,904 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:19,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-12-19 04:54:19,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-12-19 04:54:19,905 INFO L87 Difference]: Start difference. First operand 2393 states and 8937 transitions. Second operand 5 states. [2019-12-19 04:54:20,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:20,037 INFO L93 Difference]: Finished difference Result 2564 states and 9321 transitions. [2019-12-19 04:54:20,038 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-12-19 04:54:20,038 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 36 [2019-12-19 04:54:20,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:20,061 INFO L225 Difference]: With dead ends: 2564 [2019-12-19 04:54:20,061 INFO L226 Difference]: Without dead ends: 2309 [2019-12-19 04:54:20,062 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:54:20,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2309 states. [2019-12-19 04:54:20,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2309 to 2309. [2019-12-19 04:54:20,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2309 states. [2019-12-19 04:54:20,176 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2309 states to 2309 states and 8545 transitions. [2019-12-19 04:54:20,176 INFO L78 Accepts]: Start accepts. Automaton has 2309 states and 8545 transitions. Word has length 36 [2019-12-19 04:54:20,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:20,177 INFO L462 AbstractCegarLoop]: Abstraction has 2309 states and 8545 transitions. [2019-12-19 04:54:20,177 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-12-19 04:54:20,177 INFO L276 IsEmpty]: Start isEmpty. Operand 2309 states and 8545 transitions. [2019-12-19 04:54:20,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2019-12-19 04:54:20,182 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:20,182 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] [2019-12-19 04:54:20,183 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:20,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:20,183 INFO L82 PathProgramCache]: Analyzing trace with hash -355667930, now seen corresponding path program 1 times [2019-12-19 04:54:20,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:20,184 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1096018178] [2019-12-19 04:54:20,184 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:20,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:20,353 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 04:54:20,354 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1096018178] [2019-12-19 04:54:20,354 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:20,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 04:54:20,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017050596] [2019-12-19 04:54:20,355 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 04:54:20,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:20,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 04:54:20,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2019-12-19 04:54:20,356 INFO L87 Difference]: Start difference. First operand 2309 states and 8545 transitions. Second operand 6 states. [2019-12-19 04:54:20,486 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:20,486 INFO L93 Difference]: Finished difference Result 2174 states and 7681 transitions. [2019-12-19 04:54:20,487 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:54:20,487 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 37 [2019-12-19 04:54:20,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:20,504 INFO L225 Difference]: With dead ends: 2174 [2019-12-19 04:54:20,505 INFO L226 Difference]: Without dead ends: 1931 [2019-12-19 04:54:20,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2019-12-19 04:54:20,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1931 states. [2019-12-19 04:54:20,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1931 to 1931. [2019-12-19 04:54:20,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1931 states. [2019-12-19 04:54:20,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 6907 transitions. [2019-12-19 04:54:20,591 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 6907 transitions. Word has length 37 [2019-12-19 04:54:20,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:20,592 INFO L462 AbstractCegarLoop]: Abstraction has 1931 states and 6907 transitions. [2019-12-19 04:54:20,592 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 04:54:20,592 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 6907 transitions. [2019-12-19 04:54:20,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 04:54:20,602 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:20,603 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] [2019-12-19 04:54:20,603 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:20,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:20,606 INFO L82 PathProgramCache]: Analyzing trace with hash 1985653842, now seen corresponding path program 1 times [2019-12-19 04:54:20,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:20,607 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [176194174] [2019-12-19 04:54:20,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:20,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:20,868 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 04:54:20,868 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [176194174] [2019-12-19 04:54:20,869 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:20,869 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:54:20,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [600785232] [2019-12-19 04:54:20,870 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:54:20,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:20,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:54:20,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:54:20,871 INFO L87 Difference]: Start difference. First operand 1931 states and 6907 transitions. Second operand 7 states. [2019-12-19 04:54:21,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:21,010 INFO L93 Difference]: Finished difference Result 1364 states and 4531 transitions. [2019-12-19 04:54:21,010 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-19 04:54:21,010 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 38 [2019-12-19 04:54:21,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:21,020 INFO L225 Difference]: With dead ends: 1364 [2019-12-19 04:54:21,020 INFO L226 Difference]: Without dead ends: 1175 [2019-12-19 04:54:21,020 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:54:21,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1175 states. [2019-12-19 04:54:21,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1175 to 1175. [2019-12-19 04:54:21,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1175 states. [2019-12-19 04:54:21,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1175 states to 1175 states and 3883 transitions. [2019-12-19 04:54:21,058 INFO L78 Accepts]: Start accepts. Automaton has 1175 states and 3883 transitions. Word has length 38 [2019-12-19 04:54:21,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:21,058 INFO L462 AbstractCegarLoop]: Abstraction has 1175 states and 3883 transitions. [2019-12-19 04:54:21,058 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:54:21,059 INFO L276 IsEmpty]: Start isEmpty. Operand 1175 states and 3883 transitions. [2019-12-19 04:54:21,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:21,062 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:21,062 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] [2019-12-19 04:54:21,062 INFO L410 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:21,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:21,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1809318845, now seen corresponding path program 1 times [2019-12-19 04:54:21,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:21,063 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [430462998] [2019-12-19 04:54:21,063 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:21,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:21,219 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 04:54:21,219 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [430462998] [2019-12-19 04:54:21,220 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:21,220 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:54:21,220 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [993342089] [2019-12-19 04:54:21,221 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:54:21,221 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:21,221 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:54:21,222 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:54:21,222 INFO L87 Difference]: Start difference. First operand 1175 states and 3883 transitions. Second operand 8 states. [2019-12-19 04:54:21,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:21,490 INFO L93 Difference]: Finished difference Result 2417 states and 8113 transitions. [2019-12-19 04:54:21,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-12-19 04:54:21,491 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-12-19 04:54:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:21,499 INFO L225 Difference]: With dead ends: 2417 [2019-12-19 04:54:21,499 INFO L226 Difference]: Without dead ends: 1019 [2019-12-19 04:54:21,500 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:54:21,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1019 states. [2019-12-19 04:54:21,528 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1019 to 1019. [2019-12-19 04:54:21,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1019 states. [2019-12-19 04:54:21,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1019 states to 1019 states and 3379 transitions. [2019-12-19 04:54:21,533 INFO L78 Accepts]: Start accepts. Automaton has 1019 states and 3379 transitions. Word has length 39 [2019-12-19 04:54:21,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:21,534 INFO L462 AbstractCegarLoop]: Abstraction has 1019 states and 3379 transitions. [2019-12-19 04:54:21,534 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:54:21,534 INFO L276 IsEmpty]: Start isEmpty. Operand 1019 states and 3379 transitions. [2019-12-19 04:54:21,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:21,537 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:21,537 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] [2019-12-19 04:54:21,537 INFO L410 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:21,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:21,538 INFO L82 PathProgramCache]: Analyzing trace with hash 996548435, now seen corresponding path program 2 times [2019-12-19 04:54:21,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:21,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [878774408] [2019-12-19 04:54:21,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:21,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:21,674 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 04:54:21,719 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [878774408] [2019-12-19 04:54:21,719 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:21,720 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 04:54:21,720 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1410234207] [2019-12-19 04:54:21,720 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 04:54:21,721 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:21,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 04:54:21,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 04:54:21,721 INFO L87 Difference]: Start difference. First operand 1019 states and 3379 transitions. Second operand 8 states. [2019-12-19 04:54:21,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:21,928 INFO L93 Difference]: Finished difference Result 2081 states and 7054 transitions. [2019-12-19 04:54:21,929 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2019-12-19 04:54:21,929 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 39 [2019-12-19 04:54:21,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:21,937 INFO L225 Difference]: With dead ends: 2081 [2019-12-19 04:54:21,938 INFO L226 Difference]: Without dead ends: 827 [2019-12-19 04:54:21,938 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=74, Invalid=136, Unknown=0, NotChecked=0, Total=210 [2019-12-19 04:54:21,943 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2019-12-19 04:54:21,961 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 827. [2019-12-19 04:54:21,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 827 states. [2019-12-19 04:54:21,967 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 827 states to 827 states and 2731 transitions. [2019-12-19 04:54:21,967 INFO L78 Accepts]: Start accepts. Automaton has 827 states and 2731 transitions. Word has length 39 [2019-12-19 04:54:21,968 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:21,968 INFO L462 AbstractCegarLoop]: Abstraction has 827 states and 2731 transitions. [2019-12-19 04:54:21,968 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 04:54:21,969 INFO L276 IsEmpty]: Start isEmpty. Operand 827 states and 2731 transitions. [2019-12-19 04:54:21,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:21,971 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:21,971 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] [2019-12-19 04:54:21,971 INFO L410 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:21,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:21,972 INFO L82 PathProgramCache]: Analyzing trace with hash -891063675, now seen corresponding path program 3 times [2019-12-19 04:54:21,972 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:21,972 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645818221] [2019-12-19 04:54:21,972 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:22,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:22,128 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 04:54:22,128 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645818221] [2019-12-19 04:54:22,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:22,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:54:22,129 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110275322] [2019-12-19 04:54:22,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:54:22,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:22,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:54:22,130 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:54:22,131 INFO L87 Difference]: Start difference. First operand 827 states and 2731 transitions. Second operand 7 states. [2019-12-19 04:54:22,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:22,258 INFO L93 Difference]: Finished difference Result 1313 states and 4432 transitions. [2019-12-19 04:54:22,258 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:54:22,259 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-19 04:54:22,261 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:22,267 INFO L225 Difference]: With dead ends: 1313 [2019-12-19 04:54:22,267 INFO L226 Difference]: Without dead ends: 728 [2019-12-19 04:54:22,268 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:54:22,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2019-12-19 04:54:22,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 728. [2019-12-19 04:54:22,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 728 states. [2019-12-19 04:54:22,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 728 states to 728 states and 2455 transitions. [2019-12-19 04:54:22,295 INFO L78 Accepts]: Start accepts. Automaton has 728 states and 2455 transitions. Word has length 39 [2019-12-19 04:54:22,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:22,295 INFO L462 AbstractCegarLoop]: Abstraction has 728 states and 2455 transitions. [2019-12-19 04:54:22,295 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:54:22,295 INFO L276 IsEmpty]: Start isEmpty. Operand 728 states and 2455 transitions. [2019-12-19 04:54:22,297 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2019-12-19 04:54:22,297 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 04:54:22,297 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] [2019-12-19 04:54:22,298 INFO L410 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 04:54:22,298 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 04:54:22,298 INFO L82 PathProgramCache]: Analyzing trace with hash -527167331, now seen corresponding path program 4 times [2019-12-19 04:54:22,299 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 04:54:22,299 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [317684411] [2019-12-19 04:54:22,300 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 04:54:22,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 04:54:22,428 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 04:54:22,429 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [317684411] [2019-12-19 04:54:22,429 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 04:54:22,429 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-12-19 04:54:22,429 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051363187] [2019-12-19 04:54:22,430 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-12-19 04:54:22,430 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 04:54:22,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-12-19 04:54:22,431 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-12-19 04:54:22,431 INFO L87 Difference]: Start difference. First operand 728 states and 2455 transitions. Second operand 7 states. [2019-12-19 04:54:22,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 04:54:22,513 INFO L93 Difference]: Finished difference Result 566 states and 1861 transitions. [2019-12-19 04:54:22,513 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-12-19 04:54:22,514 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 39 [2019-12-19 04:54:22,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 04:54:22,514 INFO L225 Difference]: With dead ends: 566 [2019-12-19 04:54:22,514 INFO L226 Difference]: Without dead ends: 0 [2019-12-19 04:54:22,515 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-12-19 04:54:22,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-19 04:54:22,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-19 04:54:22,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-19 04:54:22,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-19 04:54:22,516 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 39 [2019-12-19 04:54:22,516 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 04:54:22,517 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-19 04:54:22,517 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-12-19 04:54:22,517 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-19 04:54:22,517 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-19 04:54:22,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 04:54:22 BasicIcfg [2019-12-19 04:54:22,524 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 04:54:22,532 INFO L168 Benchmark]: Toolchain (without parser) took 5494.88 ms. Allocated memory was 144.7 MB in the beginning and 322.4 MB in the end (delta: 177.7 MB). Free memory was 101.2 MB in the beginning and 142.4 MB in the end (delta: -41.2 MB). Peak memory consumption was 136.6 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:22,534 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-12-19 04:54:22,535 INFO L168 Benchmark]: CACSL2BoogieTranslator took 754.23 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 158.3 MB in the end (delta: -57.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:22,536 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.86 ms. Allocated memory is still 201.3 MB. Free memory was 157.6 MB in the beginning and 155.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:22,536 INFO L168 Benchmark]: Boogie Preprocessor took 27.98 ms. Allocated memory is still 201.3 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:22,540 INFO L168 Benchmark]: RCFGBuilder took 460.99 ms. Allocated memory is still 201.3 MB. Free memory was 154.3 MB in the beginning and 132.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:22,541 INFO L168 Benchmark]: TraceAbstraction took 4193.58 ms. Allocated memory was 201.3 MB in the beginning and 322.4 MB in the end (delta: 121.1 MB). Free memory was 131.6 MB in the beginning and 142.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. [2019-12-19 04:54:22,553 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 144.7 MB. Free memory was 121.1 MB in the beginning and 120.9 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 754.23 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 101.0 MB in the beginning and 158.3 MB in the end (delta: -57.3 MB). Peak memory consumption was 22.4 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 52.86 ms. Allocated memory is still 201.3 MB. Free memory was 157.6 MB in the beginning and 155.6 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 27.98 ms. Allocated memory is still 201.3 MB. Free memory was 155.6 MB in the beginning and 154.3 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 460.99 ms. Allocated memory is still 201.3 MB. Free memory was 154.3 MB in the beginning and 132.3 MB in the end (delta: 22.0 MB). Peak memory consumption was 22.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4193.58 ms. Allocated memory was 201.3 MB in the beginning and 322.4 MB in the end (delta: 121.1 MB). Free memory was 131.6 MB in the beginning and 142.4 MB in the end (delta: -10.7 MB). Peak memory consumption was 110.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 64 locations, 1 error locations. Result: SAFE, OverallTime: 4.0s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 517 SDtfs, 856 SDslu, 1487 SDs, 0 SdLazy, 197 SolverSat, 91 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 85 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5472occurred 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: 0.4s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 302 NumberOfCodeBlocks, 302 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 294 ConstructedInterpolants, 0 QuantifiedInterpolants, 31634 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...