/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Delay.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9e34d99ae2c6837f487980c721c4b6acf9d9b15c-9e34d99 [2021-07-09 22:12:15,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-07-09 22:12:15,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-07-09 22:12:15,833 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-07-09 22:12:15,834 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-07-09 22:12:15,836 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-07-09 22:12:15,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-07-09 22:12:15,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-07-09 22:12:15,844 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-07-09 22:12:15,847 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-07-09 22:12:15,849 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-07-09 22:12:15,850 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-07-09 22:12:15,850 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-07-09 22:12:15,852 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-07-09 22:12:15,853 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-07-09 22:12:15,854 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-07-09 22:12:15,856 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-07-09 22:12:15,856 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-07-09 22:12:15,858 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-07-09 22:12:15,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-07-09 22:12:15,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-07-09 22:12:15,864 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-07-09 22:12:15,865 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-07-09 22:12:15,866 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-07-09 22:12:15,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-07-09 22:12:15,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-07-09 22:12:15,873 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-07-09 22:12:15,874 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-07-09 22:12:15,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-07-09 22:12:15,875 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-07-09 22:12:15,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-07-09 22:12:15,876 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-07-09 22:12:15,876 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-07-09 22:12:15,876 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-07-09 22:12:15,877 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-07-09 22:12:15,877 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-07-09 22:12:15,880 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-Delay.epf [2021-07-09 22:12:15,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-07-09 22:12:15,908 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-07-09 22:12:15,910 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-07-09 22:12:15,910 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-07-09 22:12:15,910 INFO L138 SettingsManager]: * Use SBE=true [2021-07-09 22:12:15,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-07-09 22:12:15,910 INFO L138 SettingsManager]: * sizeof long=4 [2021-07-09 22:12:15,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-07-09 22:12:15,910 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-07-09 22:12:15,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-07-09 22:12:15,911 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-07-09 22:12:15,911 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-07-09 22:12:15,911 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-07-09 22:12:15,911 INFO L138 SettingsManager]: * sizeof long double=12 [2021-07-09 22:12:15,912 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-07-09 22:12:15,912 INFO L138 SettingsManager]: * Use constant arrays=true [2021-07-09 22:12:15,912 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-07-09 22:12:15,912 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-07-09 22:12:15,912 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-07-09 22:12:15,912 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-07-09 22:12:15,912 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-07-09 22:12:15,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-07-09 22:12:15,913 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_DELAY_SET [2021-07-09 22:12:15,913 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-07-09 22:12:16,173 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-07-09 22:12:16,203 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-07-09 22:12:16,204 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-07-09 22:12:16,205 INFO L271 PluginConnector]: Initializing CDTParser... [2021-07-09 22:12:16,205 INFO L275 PluginConnector]: CDTParser initialized [2021-07-09 22:12:16,206 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-07-09 22:12:16,240 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80590dea8/0ea13e1885d74571a29cfdf1d4fe229f/FLAG8fc006173 [2021-07-09 22:12:16,664 INFO L306 CDTParser]: Found 1 translation units. [2021-07-09 22:12:16,664 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i [2021-07-09 22:12:16,678 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80590dea8/0ea13e1885d74571a29cfdf1d4fe229f/FLAG8fc006173 [2021-07-09 22:12:17,013 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/80590dea8/0ea13e1885d74571a29cfdf1d4fe229f [2021-07-09 22:12:17,015 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-07-09 22:12:17,017 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-07-09 22:12:17,019 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-07-09 22:12:17,019 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-07-09 22:12:17,021 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-07-09 22:12:17,022 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,023 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6179e792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17, skipping insertion in model container [2021-07-09 22:12:17,023 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,028 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-07-09 22:12:17,065 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-07-09 22:12:17,184 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i[949,962] [2021-07-09 22:12:17,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:12:17,346 INFO L203 MainTranslator]: Completed pre-run [2021-07-09 22:12:17,358 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe024_tso.opt.i[949,962] [2021-07-09 22:12:17,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-07-09 22:12:17,424 INFO L208 MainTranslator]: Completed translation [2021-07-09 22:12:17,424 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17 WrapperNode [2021-07-09 22:12:17,424 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-07-09 22:12:17,425 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-07-09 22:12:17,426 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-07-09 22:12:17,426 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-07-09 22:12:17,430 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,439 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,451 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-07-09 22:12:17,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-07-09 22:12:17,452 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-07-09 22:12:17,452 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-07-09 22:12:17,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,458 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,458 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,462 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,463 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (1/1) ... [2021-07-09 22:12:17,465 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-07-09 22:12:17,466 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-07-09 22:12:17,466 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-07-09 22:12:17,466 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-07-09 22:12:17,466 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (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 [2021-07-09 22:12:17,512 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2021-07-09 22:12:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2021-07-09 22:12:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2021-07-09 22:12:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-07-09 22:12:17,513 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-07-09 22:12:17,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-07-09 22:12:17,514 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-07-09 22:12:17,779 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-07-09 22:12:17,779 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2021-07-09 22:12:17,780 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:12:17 BoogieIcfgContainer [2021-07-09 22:12:17,780 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-07-09 22:12:17,781 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-07-09 22:12:17,781 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-07-09 22:12:17,783 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-07-09 22:12:17,783 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.07 10:12:17" (1/3) ... [2021-07-09 22:12:17,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4766dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:12:17, skipping insertion in model container [2021-07-09 22:12:17,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.07 10:12:17" (2/3) ... [2021-07-09 22:12:17,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f4766dc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.07 10:12:17, skipping insertion in model container [2021-07-09 22:12:17,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.07 10:12:17" (3/3) ... [2021-07-09 22:12:17,785 INFO L111 eAbstractionObserver]: Analyzing ICFG safe024_tso.opt.i [2021-07-09 22:12:17,789 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-07-09 22:12:17,789 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-07-09 22:12:17,789 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-07-09 22:12:17,789 INFO L474 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-07-09 22:12:17,808 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,815 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,815 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,816 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,817 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,818 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,819 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,819 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,819 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,821 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,821 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,824 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,825 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,825 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,826 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,826 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,826 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-07-09 22:12:17,828 INFO L149 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2021-07-09 22:12:17,842 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-07-09 22:12:17,854 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-07-09 22:12:17,854 INFO L379 AbstractCegarLoop]: Hoare is false [2021-07-09 22:12:17,854 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-07-09 22:12:17,854 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-07-09 22:12:17,854 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-07-09 22:12:17,854 INFO L383 AbstractCegarLoop]: Difference is false [2021-07-09 22:12:17,854 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-07-09 22:12:17,854 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-07-09 22:12:18,229 INFO L276 IsEmpty]: Start isEmpty. Operand has 5560 states, 4769 states have (on average 1.924093101279094) internal successors, (9176), 5559 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:18,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-07-09 22:12:18,255 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:12:18,255 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:12:18,256 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:12:18,262 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:12:18,263 INFO L82 PathProgramCache]: Analyzing trace with hash -409076905, now seen corresponding path program 1 times [2021-07-09 22:12:18,268 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:12:18,269 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [552524925] [2021-07-09 22:12:18,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:12:18,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:12:18,560 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:18,561 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:18,568 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:18,569 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:18,584 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-09 22:12:18,585 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:12:18,594 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:12:18,595 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:12:18,609 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:18,610 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:18,617 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:18,618 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:18,626 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:18,626 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:18,628 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:12:18,628 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:12:18,628 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [552524925] [2021-07-09 22:12:18,629 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [552524925] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:12:18,629 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:12:18,629 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:12:18,629 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1357632666] [2021-07-09 22:12:18,631 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:12:18,631 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:12:18,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:12:18,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:12:18,649 INFO L87 Difference]: Start difference. First operand has 5560 states, 4769 states have (on average 1.924093101279094) internal successors, (9176), 5559 states have internal predecessors, (9176), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:18,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:12:18,857 INFO L93 Difference]: Finished difference Result 6344 states and 10657 transitions. [2021-07-09 22:12:18,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:12:18,861 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-07-09 22:12:18,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:12:18,890 INFO L225 Difference]: With dead ends: 6344 [2021-07-09 22:12:18,890 INFO L226 Difference]: Without dead ends: 2489 [2021-07-09 22:12:18,895 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 146.2ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-07-09 22:12:18,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2489 states. [2021-07-09 22:12:19,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2489 to 2489. [2021-07-09 22:12:19,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2489 states, 2440 states have (on average 2.1348360655737704) internal successors, (5209), 2488 states have internal predecessors, (5209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2489 states to 2489 states and 5209 transitions. [2021-07-09 22:12:19,011 INFO L78 Accepts]: Start accepts. Automaton has 2489 states and 5209 transitions. Word has length 50 [2021-07-09 22:12:19,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:12:19,012 INFO L482 AbstractCegarLoop]: Abstraction has 2489 states and 5209 transitions. [2021-07-09 22:12:19,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.142857142857143) internal successors, (50), 7 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,013 INFO L276 IsEmpty]: Start isEmpty. Operand 2489 states and 5209 transitions. [2021-07-09 22:12:19,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2021-07-09 22:12:19,016 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:12:19,016 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:12:19,016 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-07-09 22:12:19,016 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:12:19,019 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:12:19,020 INFO L82 PathProgramCache]: Analyzing trace with hash 1414127128, now seen corresponding path program 1 times [2021-07-09 22:12:19,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:12:19,020 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [366262164] [2021-07-09 22:12:19,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:12:19,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:12:19,103 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,104 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,104 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,107 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,107 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,111 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:12:19,111 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:12:19,123 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:19,131 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,131 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:19,138 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,138 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,139 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:12:19,139 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:12:19,139 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [366262164] [2021-07-09 22:12:19,139 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [366262164] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:12:19,139 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:12:19,139 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:12:19,140 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [708361617] [2021-07-09 22:12:19,140 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:12:19,141 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:12:19,141 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:12:19,141 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:12:19,141 INFO L87 Difference]: Start difference. First operand 2489 states and 5209 transitions. Second operand has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:12:19,277 INFO L93 Difference]: Finished difference Result 3161 states and 6865 transitions. [2021-07-09 22:12:19,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:12:19,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 52 [2021-07-09 22:12:19,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:12:19,299 INFO L225 Difference]: With dead ends: 3161 [2021-07-09 22:12:19,299 INFO L226 Difference]: Without dead ends: 1565 [2021-07-09 22:12:19,299 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 92.4ms TimeCoverageRelationStatistics Valid=63, Invalid=119, Unknown=0, NotChecked=0, Total=182 [2021-07-09 22:12:19,303 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1565 states. [2021-07-09 22:12:19,322 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1565 to 1565. [2021-07-09 22:12:19,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1565 states, 1537 states have (on average 2.1652569941444373) internal successors, (3328), 1564 states have internal predecessors, (3328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,328 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1565 states to 1565 states and 3328 transitions. [2021-07-09 22:12:19,328 INFO L78 Accepts]: Start accepts. Automaton has 1565 states and 3328 transitions. Word has length 52 [2021-07-09 22:12:19,329 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:12:19,329 INFO L482 AbstractCegarLoop]: Abstraction has 1565 states and 3328 transitions. [2021-07-09 22:12:19,330 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 7.428571428571429) internal successors, (52), 7 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,331 INFO L276 IsEmpty]: Start isEmpty. Operand 1565 states and 3328 transitions. [2021-07-09 22:12:19,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2021-07-09 22:12:19,335 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:12:19,335 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:12:19,335 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-07-09 22:12:19,336 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:12:19,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:12:19,336 INFO L82 PathProgramCache]: Analyzing trace with hash 1033089711, now seen corresponding path program 1 times [2021-07-09 22:12:19,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:12:19,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895428949] [2021-07-09 22:12:19,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:12:19,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:12:19,429 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,429 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,430 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,430 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,436 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:12:19,437 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:12:19,450 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,450 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:12:19,457 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:12:19,458 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:19,465 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,466 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,466 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:12:19,466 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:12:19,466 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895428949] [2021-07-09 22:12:19,467 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1895428949] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:12:19,467 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:12:19,467 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-07-09 22:12:19,467 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358072892] [2021-07-09 22:12:19,467 INFO L462 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-07-09 22:12:19,467 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:12:19,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-07-09 22:12:19,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-07-09 22:12:19,468 INFO L87 Difference]: Start difference. First operand 1565 states and 3328 transitions. Second operand has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:12:19,570 INFO L93 Difference]: Finished difference Result 2021 states and 4118 transitions. [2021-07-09 22:12:19,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-07-09 22:12:19,571 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 55 [2021-07-09 22:12:19,571 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:12:19,576 INFO L225 Difference]: With dead ends: 2021 [2021-07-09 22:12:19,576 INFO L226 Difference]: Without dead ends: 1377 [2021-07-09 22:12:19,576 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 84.4ms TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:12:19,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1377 states. [2021-07-09 22:12:19,610 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1377 to 1377. [2021-07-09 22:12:19,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1377 states, 1349 states have (on average 2.177168272794663) internal successors, (2937), 1376 states have internal predecessors, (2937), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1377 states to 1377 states and 2937 transitions. [2021-07-09 22:12:19,616 INFO L78 Accepts]: Start accepts. Automaton has 1377 states and 2937 transitions. Word has length 55 [2021-07-09 22:12:19,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:12:19,616 INFO L482 AbstractCegarLoop]: Abstraction has 1377 states and 2937 transitions. [2021-07-09 22:12:19,616 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.166666666666666) internal successors, (55), 6 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,616 INFO L276 IsEmpty]: Start isEmpty. Operand 1377 states and 2937 transitions. [2021-07-09 22:12:19,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-07-09 22:12:19,618 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:12:19,618 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:12:19,618 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-07-09 22:12:19,618 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:12:19,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:12:19,619 INFO L82 PathProgramCache]: Analyzing trace with hash -1503165418, now seen corresponding path program 1 times [2021-07-09 22:12:19,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:12:19,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1998442003] [2021-07-09 22:12:19,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:12:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:12:19,662 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,662 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,667 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,669 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,672 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,672 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,677 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:12:19,678 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:12:19,689 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,690 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:12:19,696 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:12:19,696 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:19,703 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,704 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,704 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:12:19,704 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:12:19,704 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1998442003] [2021-07-09 22:12:19,704 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1998442003] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:12:19,704 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:12:19,704 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:12:19,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [557865192] [2021-07-09 22:12:19,705 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:12:19,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:12:19,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:12:19,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:12:19,706 INFO L87 Difference]: Start difference. First operand 1377 states and 2937 transitions. Second operand has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,816 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:12:19,817 INFO L93 Difference]: Finished difference Result 1332 states and 2638 transitions. [2021-07-09 22:12:19,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-07-09 22:12:19,817 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-07-09 22:12:19,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:12:19,820 INFO L225 Difference]: With dead ends: 1332 [2021-07-09 22:12:19,820 INFO L226 Difference]: Without dead ends: 795 [2021-07-09 22:12:19,821 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 89.9ms TimeCoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2021-07-09 22:12:19,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 795 states. [2021-07-09 22:12:19,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 795 to 795. [2021-07-09 22:12:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 795 states, 771 states have (on average 2.106355382619974) internal successors, (1624), 794 states have internal predecessors, (1624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,834 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 795 states to 795 states and 1624 transitions. [2021-07-09 22:12:19,834 INFO L78 Accepts]: Start accepts. Automaton has 795 states and 1624 transitions. Word has length 56 [2021-07-09 22:12:19,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:12:19,834 INFO L482 AbstractCegarLoop]: Abstraction has 795 states and 1624 transitions. [2021-07-09 22:12:19,834 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.0) internal successors, (56), 7 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:19,835 INFO L276 IsEmpty]: Start isEmpty. Operand 795 states and 1624 transitions. [2021-07-09 22:12:19,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-07-09 22:12:19,836 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:12:19,837 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:12:19,837 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-07-09 22:12:19,837 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:12:19,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:12:19,837 INFO L82 PathProgramCache]: Analyzing trace with hash 1911328595, now seen corresponding path program 1 times [2021-07-09 22:12:19,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:12:19,838 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [196774053] [2021-07-09 22:12:19,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:12:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:12:19,905 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,906 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,906 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,909 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,910 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,913 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,914 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:19,918 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.8 percent of original size [2021-07-09 22:12:19,919 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 23 [2021-07-09 22:12:19,930 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-07-09 22:12:19,937 INFO L142 QuantifierPusher]: treesize reduction 11, result has 45.0 percent of original size [2021-07-09 22:12:19,938 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:19,945 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:19,946 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:19,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:12:19,948 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:12:19,948 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [196774053] [2021-07-09 22:12:19,948 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [196774053] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:12:19,948 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:12:19,948 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-07-09 22:12:19,948 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [520734968] [2021-07-09 22:12:19,949 INFO L462 AbstractCegarLoop]: Interpolant automaton has 8 states [2021-07-09 22:12:19,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:12:19,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-07-09 22:12:19,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2021-07-09 22:12:19,950 INFO L87 Difference]: Start difference. First operand 795 states and 1624 transitions. Second operand has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,054 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:12:20,055 INFO L93 Difference]: Finished difference Result 552 states and 999 transitions. [2021-07-09 22:12:20,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-07-09 22:12:20,055 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-07-09 22:12:20,055 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:12:20,056 INFO L225 Difference]: With dead ends: 552 [2021-07-09 22:12:20,056 INFO L226 Difference]: Without dead ends: 280 [2021-07-09 22:12:20,056 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 92.9ms TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2021-07-09 22:12:20,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2021-07-09 22:12:20,060 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 280. [2021-07-09 22:12:20,060 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 271 states have (on average 1.7158671586715868) internal successors, (465), 279 states have internal predecessors, (465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 465 transitions. [2021-07-09 22:12:20,061 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 465 transitions. Word has length 58 [2021-07-09 22:12:20,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:12:20,061 INFO L482 AbstractCegarLoop]: Abstraction has 280 states and 465 transitions. [2021-07-09 22:12:20,061 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 8 states, 8 states have (on average 7.25) internal successors, (58), 8 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,061 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 465 transitions. [2021-07-09 22:12:20,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:12:20,062 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:12:20,062 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:12:20,062 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-07-09 22:12:20,062 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:12:20,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:12:20,063 INFO L82 PathProgramCache]: Analyzing trace with hash -1400503023, now seen corresponding path program 1 times [2021-07-09 22:12:20,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:12:20,063 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078645679] [2021-07-09 22:12:20,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:12:20,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:12:20,118 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,118 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:20,119 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,120 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:20,123 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-09 22:12:20,124 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:12:20,133 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:12:20,135 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:12:20,148 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,149 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:20,156 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,157 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:20,167 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,167 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:12:20,169 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:12:20,169 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078645679] [2021-07-09 22:12:20,169 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1078645679] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:12:20,170 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:12:20,170 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:12:20,170 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519812713] [2021-07-09 22:12:20,170 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:12:20,170 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:12:20,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:12:20,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:12:20,171 INFO L87 Difference]: Start difference. First operand 280 states and 465 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:12:20,264 INFO L93 Difference]: Finished difference Result 390 states and 691 transitions. [2021-07-09 22:12:20,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 22:12:20,264 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 22:12:20,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:12:20,266 INFO L225 Difference]: With dead ends: 390 [2021-07-09 22:12:20,266 INFO L226 Difference]: Without dead ends: 224 [2021-07-09 22:12:20,266 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 92.2ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:12:20,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2021-07-09 22:12:20,269 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 220. [2021-07-09 22:12:20,269 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220 states, 211 states have (on average 1.7677725118483412) internal successors, (373), 219 states have internal predecessors, (373), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 373 transitions. [2021-07-09 22:12:20,270 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 373 transitions. Word has length 62 [2021-07-09 22:12:20,271 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:12:20,271 INFO L482 AbstractCegarLoop]: Abstraction has 220 states and 373 transitions. [2021-07-09 22:12:20,271 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,271 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 373 transitions. [2021-07-09 22:12:20,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-07-09 22:12:20,272 INFO L500 BasicCegarLoop]: Found error trace [2021-07-09 22:12:20,272 INFO L508 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-07-09 22:12:20,272 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-07-09 22:12:20,272 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-07-09 22:12:20,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-07-09 22:12:20,272 INFO L82 PathProgramCache]: Analyzing trace with hash 711364339, now seen corresponding path program 2 times [2021-07-09 22:12:20,273 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-07-09 22:12:20,273 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1483929085] [2021-07-09 22:12:20,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-07-09 22:12:20,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-07-09 22:12:20,324 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:20,325 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,325 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 3 [2021-07-09 22:12:20,328 INFO L142 QuantifierPusher]: treesize reduction 3, result has 81.3 percent of original size [2021-07-09 22:12:20,328 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-07-09 22:12:20,337 INFO L142 QuantifierPusher]: treesize reduction 1, result has 95.0 percent of original size [2021-07-09 22:12:20,337 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 19 [2021-07-09 22:12:20,352 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,355 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:20,363 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,363 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 9 [2021-07-09 22:12:20,372 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-07-09 22:12:20,373 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-07-09 22:12:20,373 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-07-09 22:12:20,374 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-07-09 22:12:20,374 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1483929085] [2021-07-09 22:12:20,374 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1483929085] provided 1 perfect and 0 imperfect interpolant sequences [2021-07-09 22:12:20,374 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-07-09 22:12:20,374 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-07-09 22:12:20,374 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971412353] [2021-07-09 22:12:20,375 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-07-09 22:12:20,375 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-07-09 22:12:20,375 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-07-09 22:12:20,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-07-09 22:12:20,375 INFO L87 Difference]: Start difference. First operand 220 states and 373 transitions. Second operand has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-07-09 22:12:20,444 INFO L93 Difference]: Finished difference Result 184 states and 313 transitions. [2021-07-09 22:12:20,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-07-09 22:12:20,444 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-07-09 22:12:20,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-07-09 22:12:20,444 INFO L225 Difference]: With dead ends: 184 [2021-07-09 22:12:20,445 INFO L226 Difference]: Without dead ends: 0 [2021-07-09 22:12:20,447 INFO L764 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 89.0ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-07-09 22:12:20,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-07-09 22:12:20,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-07-09 22:12:20,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-07-09 22:12:20,447 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 62 [2021-07-09 22:12:20,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-07-09 22:12:20,447 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-07-09 22:12:20,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 8.857142857142858) internal successors, (62), 7 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-07-09 22:12:20,448 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-07-09 22:12:20,448 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-07-09 22:12:20,448 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-07-09 22:12:20,449 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-07-09 22:12:20,451 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.07 10:12:20 BasicIcfg [2021-07-09 22:12:20,451 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-07-09 22:12:20,453 INFO L168 Benchmark]: Toolchain (without parser) took 3434.60 ms. Allocated memory was 156.2 MB in the beginning and 266.3 MB in the end (delta: 110.1 MB). Free memory was 118.6 MB in the beginning and 184.6 MB in the end (delta: -66.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:12:20,454 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 156.2 MB. Free memory was 136.4 MB in the beginning and 136.2 MB in the end (delta: 209.9 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-07-09 22:12:20,454 INFO L168 Benchmark]: CACSL2BoogieTranslator took 405.43 ms. Allocated memory is still 156.2 MB. Free memory was 118.4 MB in the beginning and 128.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. [2021-07-09 22:12:20,455 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.55 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 127.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:12:20,456 INFO L168 Benchmark]: Boogie Preprocessor took 13.89 ms. Allocated memory is still 156.2 MB. Free memory was 127.1 MB in the beginning and 125.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-07-09 22:12:20,456 INFO L168 Benchmark]: RCFGBuilder took 314.62 ms. Allocated memory is still 156.2 MB. Free memory was 125.5 MB in the beginning and 102.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. [2021-07-09 22:12:20,456 INFO L168 Benchmark]: TraceAbstraction took 2669.41 ms. Allocated memory was 156.2 MB in the beginning and 266.3 MB in the end (delta: 110.1 MB). Free memory was 101.6 MB in the beginning and 184.6 MB in the end (delta: -83.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. [2021-07-09 22:12:20,463 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 156.2 MB. Free memory was 136.4 MB in the beginning and 136.2 MB in the end (delta: 209.9 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 405.43 ms. Allocated memory is still 156.2 MB. Free memory was 118.4 MB in the beginning and 128.8 MB in the end (delta: -10.4 MB). Peak memory consumption was 14.4 MB. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 25.55 ms. Allocated memory is still 156.2 MB. Free memory was 128.8 MB in the beginning and 127.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 13.89 ms. Allocated memory is still 156.2 MB. Free memory was 127.1 MB in the beginning and 125.7 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 314.62 ms. Allocated memory is still 156.2 MB. Free memory was 125.5 MB in the beginning and 102.0 MB in the end (delta: 23.5 MB). Peak memory consumption was 24.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 2669.41 ms. Allocated memory was 156.2 MB in the beginning and 266.3 MB in the end (delta: 110.1 MB). Free memory was 101.6 MB in the beginning and 184.6 MB in the end (delta: -83.1 MB). Peak memory consumption was 28.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 18198, positive: 17649, positive conditional: 17649, positive unconditional: 0, negative: 549, negative conditional: 549, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 18122, positive: 17649, positive conditional: 0, positive unconditional: 17649, negative: 473, negative conditional: 0, negative unconditional: 473, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 673, positive: 660, positive conditional: 0, positive unconditional: 660, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 673, positive: 656, positive conditional: 0, positive unconditional: 656, negative: 17, negative conditional: 0, negative unconditional: 17, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 17, positive: 4, positive conditional: 0, positive unconditional: 4, negative: 13, negative conditional: 0, negative unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 31, positive: 10, positive conditional: 0, positive unconditional: 10, negative: 21, negative conditional: 0, negative unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 18122, positive: 16989, positive conditional: 0, positive unconditional: 16989, negative: 460, negative conditional: 0, negative unconditional: 460, unknown: 673, unknown conditional: 0, unknown unconditional: 673] , Statistics on independence cache: Total cache size (in pairs): 673, Positive cache size: 660, Positive conditional cache size: 0, Positive unconditional cache size: 660, Negative cache size: 13, Negative conditional cache size: 0, Negative unconditional cache size: 13, Independence queries for same thread: 76 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 108 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 2596.0ms, OverallIterations: 7, TraceHistogramMax: 1, EmptinessCheckTime: 51.9ms, AutomataDifference: 918.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 360.7ms, PartialOrderReductionTime: 350.7ms, HoareTripleCheckerStatistics: 638 SDtfs, 895 SDslu, 1986 SDs, 0 SdLazy, 246 SolverSat, 56 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 147.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 87 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 687.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=5560occurred in iteration=0, InterpolantAutomatonStates: 65, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 196.5ms AutomataMinimizationTime, 7 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 28.8ms SsaConstructionTime, 187.8ms SatisfiabilityAnalysisTime, 700.4ms InterpolantComputationTime, 395 NumberOfCodeBlocks, 395 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 388 ConstructedInterpolants, 0 QuantifiedInterpolants, 1526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...