/usr/bin/java -Xmx16000000000 -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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 11:02:40,339 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 11:02:40,341 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 11:02:40,370 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 11:02:40,385 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 11:02:40,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 11:02:40,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 11:02:40,388 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 11:02:40,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 11:02:40,390 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 11:02:40,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 11:02:40,396 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 11:02:40,397 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 11:02:40,398 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 11:02:40,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 11:02:40,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 11:02:40,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 11:02:40,409 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 11:02:40,410 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 11:02:40,410 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 11:02:40,411 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-Separate.epf [2021-06-05 11:02:40,437 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 11:02:40,437 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 11:02:40,437 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 11:02:40,438 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 11:02:40,439 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 11:02:40,439 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 11:02:40,439 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 11:02:40,440 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 11:02:40,440 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 11:02:40,440 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 11:02:40,440 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 11:02:40,440 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 11:02:40,440 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 11:02:40,441 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 11:02:40,441 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 11:02:40,441 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 11:02:40,442 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 11:02:40,442 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 11:02:40,442 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 11:02:40,442 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 11:02:40,442 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 11:02:40,442 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 11:02:40,442 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 11:02:40,442 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 11:02:40,669 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 11:02:40,681 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 11:02:40,683 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 11:02:40,684 INFO L271 PluginConnector]: Initializing CDTParser... [2021-06-05 11:02:40,684 INFO L275 PluginConnector]: CDTParser initialized [2021-06-05 11:02:40,684 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2021-06-05 11:02:40,728 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2529ae8fd/e66a4e8693f248caaa6fe3108409c784/FLAGcaa36a612 [2021-06-05 11:02:41,102 INFO L306 CDTParser]: Found 1 translation units. [2021-06-05 11:02:41,102 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-divine/ring_1w1r-2.i [2021-06-05 11:02:41,118 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2529ae8fd/e66a4e8693f248caaa6fe3108409c784/FLAGcaa36a612 [2021-06-05 11:02:41,462 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2529ae8fd/e66a4e8693f248caaa6fe3108409c784 [2021-06-05 11:02:41,464 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 11:02:41,465 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-06-05 11:02:41,469 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-06-05 11:02:41,469 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-06-05 11:02:41,471 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-06-05 11:02:41,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,472 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cad8772 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41, skipping insertion in model container [2021-06-05 11:02:41,472 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,477 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-06-05 11:02:41,515 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-06-05 11:02:41,617 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 11:02:41,786 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-divine/ring_1w1r-2.i[39095,39108] [2021-06-05 11:02:41,788 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-divine/ring_1w1r-2.i[39180,39193] [2021-06-05 11:02:41,788 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-divine/ring_1w1r-2.i[39232,39245] [2021-06-05 11:02:41,792 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:02:41,796 INFO L203 MainTranslator]: Completed pre-run [2021-06-05 11:02:41,803 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-06-05 11:02:41,817 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-divine/ring_1w1r-2.i[39095,39108] [2021-06-05 11:02:41,817 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-divine/ring_1w1r-2.i[39180,39193] [2021-06-05 11:02:41,818 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-divine/ring_1w1r-2.i[39232,39245] [2021-06-05 11:02:41,820 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-06-05 11:02:41,879 INFO L208 MainTranslator]: Completed translation [2021-06-05 11:02:41,880 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41 WrapperNode [2021-06-05 11:02:41,880 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-06-05 11:02:41,880 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 11:02:41,880 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 11:02:41,881 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 11:02:41,885 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,908 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 11:02:41,909 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 11:02:41,909 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 11:02:41,909 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 11:02:41,914 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,915 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,917 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,917 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,922 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,924 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,926 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (1/1) ... [2021-06-05 11:02:41,927 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 11:02:41,928 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 11:02:41,928 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 11:02:41,928 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 11:02:41,928 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (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 [2021-06-05 11:02:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure reader_fn [2021-06-05 11:02:41,976 INFO L138 BoogieDeclarations]: Found implementation of procedure reader_fn [2021-06-05 11:02:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-06-05 11:02:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-06-05 11:02:41,976 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-06-05 11:02:41,977 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-06-05 11:02:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-06-05 11:02:41,978 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 11:02:41,978 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 11:02:41,979 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 11:02:42,383 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 11:02:42,383 INFO L299 CfgBuilder]: Removed 19 assume(true) statements. [2021-06-05 11:02:42,384 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:02:42 BoogieIcfgContainer [2021-06-05 11:02:42,384 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 11:02:42,385 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 11:02:42,385 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 11:02:42,387 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 11:02:42,387 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 05.06 11:02:41" (1/3) ... [2021-06-05 11:02:42,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455b71d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:02:42, skipping insertion in model container [2021-06-05 11:02:42,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 05.06 11:02:41" (2/3) ... [2021-06-05 11:02:42,388 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@455b71d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 11:02:42, skipping insertion in model container [2021-06-05 11:02:42,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 11:02:42" (3/3) ... [2021-06-05 11:02:42,389 INFO L111 eAbstractionObserver]: Analyzing ICFG ring_1w1r-2.i [2021-06-05 11:02:42,409 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 11:02:42,409 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 11:02:42,409 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-06-05 11:02:42,410 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 11:02:42,450 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,450 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,450 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,450 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,451 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,452 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,452 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,452 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,452 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,452 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,453 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,454 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,455 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,456 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,457 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,458 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,459 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,460 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,461 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,461 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,461 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,461 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,461 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,461 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,465 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,465 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,469 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,469 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,469 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,469 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,469 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,469 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,472 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,472 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,473 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,474 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,475 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,476 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,476 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,476 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,476 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,476 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,476 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,476 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,477 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,478 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,479 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,480 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,481 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,482 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,483 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,484 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,485 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,486 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,487 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,487 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,487 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,487 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,487 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,487 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,492 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~val~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,493 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,493 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,493 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,493 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,493 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,493 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret15| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,493 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret16| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~r~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~i~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem10| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem12| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_dequeue_#t~mem11| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_empty_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#t~mem13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,494 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#in~r.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~r.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~ret18| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~last~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_ring_dequeue_~x~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_#t~pre17| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe |reader_fnThread1of1ForFork0_ring_empty_#res| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,495 WARN L313 ript$VariableManager]: TermVariabe reader_fnThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-06-05 11:02:42,503 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-06-05 11:02:42,518 INFO L255 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2021-06-05 11:02:42,539 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 11:02:42,539 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 11:02:42,540 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 11:02:42,540 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 11:02:42,540 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 11:02:42,540 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 11:02:42,540 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 11:02:42,540 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 11:02:42,553 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 136 places, 142 transitions, 292 flow [2021-06-05 11:02:42,614 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 2211 states, 2207 states have (on average 2.151789759855007) internal successors, (4749), 2210 states have internal predecessors, (4749), 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) [2021-06-05 11:02:42,619 INFO L276 IsEmpty]: Start isEmpty. Operand has 2211 states, 2207 states have (on average 2.151789759855007) internal successors, (4749), 2210 states have internal predecessors, (4749), 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) [2021-06-05 11:02:42,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2021-06-05 11:02:42,633 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:02:42,633 INFO L521 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] [2021-06-05 11:02:42,634 INFO L430 AbstractCegarLoop]: === Iteration 1 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:02:42,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:02:42,638 INFO L82 PathProgramCache]: Analyzing trace with hash -1950975089, now seen corresponding path program 1 times [2021-06-05 11:02:42,643 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:02:42,643 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [910347350] [2021-06-05 11:02:42,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:02:42,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:02:42,811 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:02:42,812 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:02:42,812 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [910347350] [2021-06-05 11:02:42,812 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [910347350] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:02:42,812 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:02:42,813 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-06-05 11:02:42,813 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324742439] [2021-06-05 11:02:42,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 2 states [2021-06-05 11:02:42,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:02:42,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-06-05 11:02:42,826 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:02:42,831 INFO L87 Difference]: Start difference. First operand has 2211 states, 2207 states have (on average 2.151789759855007) internal successors, (4749), 2210 states have internal predecessors, (4749), 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 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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) [2021-06-05 11:02:42,869 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:02:42,869 INFO L93 Difference]: Finished difference Result 2211 states and 4485 transitions. [2021-06-05 11:02:42,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-06-05 11:02:42,870 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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 35 [2021-06-05 11:02:42,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:02:42,887 INFO L225 Difference]: With dead ends: 2211 [2021-06-05 11:02:42,887 INFO L226 Difference]: Without dead ends: 2067 [2021-06-05 11:02:42,888 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0ms TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-06-05 11:02:42,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2067 states. [2021-06-05 11:02:42,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2067 to 2067. [2021-06-05 11:02:42,989 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2067 states, 2064 states have (on average 2.0353682170542635) internal successors, (4201), 2066 states have internal predecessors, (4201), 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) [2021-06-05 11:02:42,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2067 states to 2067 states and 4201 transitions. [2021-06-05 11:02:42,997 INFO L78 Accepts]: Start accepts. Automaton has 2067 states and 4201 transitions. Word has length 35 [2021-06-05 11:02:42,997 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:02:42,997 INFO L482 AbstractCegarLoop]: Abstraction has 2067 states and 4201 transitions. [2021-06-05 11:02:42,997 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 2 states, 2 states have (on average 17.5) internal successors, (35), 2 states have internal predecessors, (35), 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) [2021-06-05 11:02:42,998 INFO L276 IsEmpty]: Start isEmpty. Operand 2067 states and 4201 transitions. [2021-06-05 11:02:42,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-06-05 11:02:42,999 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:02:42,999 INFO L521 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] [2021-06-05 11:02:42,999 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 11:02:42,999 INFO L430 AbstractCegarLoop]: === Iteration 2 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:02:43,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:02:43,000 INFO L82 PathProgramCache]: Analyzing trace with hash -350717078, now seen corresponding path program 1 times [2021-06-05 11:02:43,000 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:02:43,000 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073081220] [2021-06-05 11:02:43,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:02:43,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:02:43,075 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:02:43,075 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:02:43,075 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073081220] [2021-06-05 11:02:43,076 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073081220] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:02:43,076 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:02:43,076 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 11:02:43,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [157321045] [2021-06-05 11:02:43,077 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 11:02:43,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:02:43,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 11:02:43,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:02:43,078 INFO L87 Difference]: Start difference. First operand 2067 states and 4201 transitions. Second operand has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-06-05 11:02:43,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:02:43,104 INFO L93 Difference]: Finished difference Result 3359 states and 6857 transitions. [2021-06-05 11:02:43,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 11:02:43,105 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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 36 [2021-06-05 11:02:43,105 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:02:43,114 INFO L225 Difference]: With dead ends: 3359 [2021-06-05 11:02:43,114 INFO L226 Difference]: Without dead ends: 3359 [2021-06-05 11:02:43,115 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 5.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 11:02:43,123 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3359 states. [2021-06-05 11:02:43,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3359 to 2543. [2021-06-05 11:02:43,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2543 states, 2540 states have (on average 2.0476377952755906) internal successors, (5201), 2542 states have internal predecessors, (5201), 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) [2021-06-05 11:02:43,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2543 states to 2543 states and 5201 transitions. [2021-06-05 11:02:43,183 INFO L78 Accepts]: Start accepts. Automaton has 2543 states and 5201 transitions. Word has length 36 [2021-06-05 11:02:43,183 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:02:43,183 INFO L482 AbstractCegarLoop]: Abstraction has 2543 states and 5201 transitions. [2021-06-05 11:02:43,183 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 12.0) internal successors, (36), 3 states have internal predecessors, (36), 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) [2021-06-05 11:02:43,183 INFO L276 IsEmpty]: Start isEmpty. Operand 2543 states and 5201 transitions. [2021-06-05 11:02:43,187 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2021-06-05 11:02:43,187 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:02:43,188 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:02:43,188 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 11:02:43,188 INFO L430 AbstractCegarLoop]: === Iteration 3 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:02:43,188 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:02:43,188 INFO L82 PathProgramCache]: Analyzing trace with hash 225905160, now seen corresponding path program 1 times [2021-06-05 11:02:43,188 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:02:43,189 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112916912] [2021-06-05 11:02:43,189 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:02:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:02:43,504 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:02:43,504 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:02:43,505 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112916912] [2021-06-05 11:02:43,505 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1112916912] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:02:43,505 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:02:43,505 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 11:02:43,505 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13895939] [2021-06-05 11:02:43,506 INFO L462 AbstractCegarLoop]: Interpolant automaton has 19 states [2021-06-05 11:02:43,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:02:43,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-06-05 11:02:43,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=300, Unknown=0, NotChecked=0, Total=342 [2021-06-05 11:02:43,508 INFO L87 Difference]: Start difference. First operand 2543 states and 5201 transitions. Second operand has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 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) [2021-06-05 11:02:44,380 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 71 [2021-06-05 11:02:45,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:02:45,392 INFO L93 Difference]: Finished difference Result 2806 states and 5743 transitions. [2021-06-05 11:02:45,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-06-05 11:02:45,393 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 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 65 [2021-06-05 11:02:45,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:02:45,400 INFO L225 Difference]: With dead ends: 2806 [2021-06-05 11:02:45,400 INFO L226 Difference]: Without dead ends: 2691 [2021-06-05 11:02:45,400 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 133 ImplicationChecksByTransitivity, 1433.5ms TimeCoverageRelationStatistics Valid=406, Invalid=1076, Unknown=0, NotChecked=0, Total=1482 [2021-06-05 11:02:45,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2691 states. [2021-06-05 11:02:45,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2691 to 2499. [2021-06-05 11:02:45,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2499 states, 2496 states have (on average 2.0516826923076925) internal successors, (5121), 2498 states have internal predecessors, (5121), 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) [2021-06-05 11:02:45,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2499 states to 2499 states and 5121 transitions. [2021-06-05 11:02:45,441 INFO L78 Accepts]: Start accepts. Automaton has 2499 states and 5121 transitions. Word has length 65 [2021-06-05 11:02:45,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:02:45,441 INFO L482 AbstractCegarLoop]: Abstraction has 2499 states and 5121 transitions. [2021-06-05 11:02:45,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 19 states, 19 states have (on average 3.4210526315789473) internal successors, (65), 19 states have internal predecessors, (65), 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) [2021-06-05 11:02:45,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2499 states and 5121 transitions. [2021-06-05 11:02:45,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:02:45,444 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:02:45,445 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:02:45,445 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 11:02:45,445 INFO L430 AbstractCegarLoop]: === Iteration 4 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:02:45,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:02:45,445 INFO L82 PathProgramCache]: Analyzing trace with hash -1270073503, now seen corresponding path program 1 times [2021-06-05 11:02:45,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:02:45,445 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214215172] [2021-06-05 11:02:45,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:02:45,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:02:46,196 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:02:46,196 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:02:46,196 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214215172] [2021-06-05 11:02:46,196 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214215172] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:02:46,196 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:02:46,196 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 11:02:46,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078324897] [2021-06-05 11:02:46,197 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 11:02:46,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:02:46,197 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 11:02:46,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=678, Unknown=0, NotChecked=0, Total=756 [2021-06-05 11:02:46,198 INFO L87 Difference]: Start difference. First operand 2499 states and 5121 transitions. Second operand has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 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) [2021-06-05 11:02:47,850 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 60 [2021-06-05 11:02:48,459 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 58 [2021-06-05 11:02:48,737 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:02:49,282 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 61 [2021-06-05 11:02:49,565 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-06-05 11:02:49,726 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 62 [2021-06-05 11:02:50,151 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-06-05 11:02:50,289 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 62 [2021-06-05 11:02:50,576 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:02:50,739 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-06-05 11:02:50,885 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:02:51,035 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 62 [2021-06-05 11:02:51,218 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 66 [2021-06-05 11:02:51,359 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 70 [2021-06-05 11:02:51,530 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:02:51,665 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 11:02:51,873 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:02:52,041 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:02:52,212 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-06-05 11:02:52,343 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 61 [2021-06-05 11:02:52,567 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2021-06-05 11:02:52,759 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 70 [2021-06-05 11:02:52,914 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 65 [2021-06-05 11:02:53,061 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-06-05 11:02:53,281 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2021-06-05 11:02:53,478 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 74 [2021-06-05 11:02:53,674 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-06-05 11:02:53,902 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2021-06-05 11:02:54,119 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 75 [2021-06-05 11:02:54,303 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:02:54,532 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:02:54,764 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-06-05 11:02:54,935 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:02:55,112 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-06-05 11:02:55,360 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 79 [2021-06-05 11:02:55,569 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 11:02:55,767 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-06-05 11:02:56,033 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:02:56,243 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 72 [2021-06-05 11:02:56,504 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 80 [2021-06-05 11:02:56,719 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-06-05 11:02:56,940 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 78 [2021-06-05 11:02:57,152 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 76 [2021-06-05 11:02:57,375 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:02:57,610 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:02:57,859 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 84 [2021-06-05 11:02:58,146 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 87 [2021-06-05 11:02:58,416 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2021-06-05 11:02:58,710 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 81 [2021-06-05 11:02:59,009 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-06-05 11:02:59,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:02:59,275 INFO L93 Difference]: Finished difference Result 3468 states and 7100 transitions. [2021-06-05 11:02:59,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 86 states. [2021-06-05 11:02:59,275 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 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 85 [2021-06-05 11:02:59,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:02:59,285 INFO L225 Difference]: With dead ends: 3468 [2021-06-05 11:02:59,285 INFO L226 Difference]: Without dead ends: 3468 [2021-06-05 11:02:59,288 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 109 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2106 ImplicationChecksByTransitivity, 12119.9ms TimeCoverageRelationStatistics Valid=3511, Invalid=8699, Unknown=0, NotChecked=0, Total=12210 [2021-06-05 11:02:59,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3468 states. [2021-06-05 11:02:59,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3468 to 2894. [2021-06-05 11:02:59,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2894 states, 2891 states have (on average 2.051193358699412) internal successors, (5930), 2893 states have internal predecessors, (5930), 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) [2021-06-05 11:02:59,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2894 states to 2894 states and 5930 transitions. [2021-06-05 11:02:59,333 INFO L78 Accepts]: Start accepts. Automaton has 2894 states and 5930 transitions. Word has length 85 [2021-06-05 11:02:59,333 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:02:59,333 INFO L482 AbstractCegarLoop]: Abstraction has 2894 states and 5930 transitions. [2021-06-05 11:02:59,333 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 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) [2021-06-05 11:02:59,333 INFO L276 IsEmpty]: Start isEmpty. Operand 2894 states and 5930 transitions. [2021-06-05 11:02:59,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:02:59,336 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:02:59,337 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:02:59,337 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 11:02:59,337 INFO L430 AbstractCegarLoop]: === Iteration 5 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:02:59,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:02:59,337 INFO L82 PathProgramCache]: Analyzing trace with hash 1443737283, now seen corresponding path program 2 times [2021-06-05 11:02:59,337 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:02:59,337 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874199219] [2021-06-05 11:02:59,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:02:59,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:02:59,870 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:02:59,871 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:02:59,871 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874199219] [2021-06-05 11:02:59,871 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1874199219] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:02:59,871 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:02:59,871 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:02:59,871 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765727344] [2021-06-05 11:02:59,871 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:02:59,871 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:02:59,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:02:59,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:02:59,873 INFO L87 Difference]: Start difference. First operand 2894 states and 5930 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:01,966 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-06-05 11:03:02,682 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-06-05 11:03:03,320 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 11:03:03,467 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 11:03:03,858 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-06-05 11:03:04,018 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-06-05 11:03:04,150 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 67 [2021-06-05 11:03:04,428 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2021-06-05 11:03:04,567 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-06-05 11:03:04,861 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:03:05,072 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-06-05 11:03:05,274 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2021-06-05 11:03:05,410 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2021-06-05 11:03:05,603 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 66 [2021-06-05 11:03:05,768 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2021-06-05 11:03:05,968 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2021-06-05 11:03:06,133 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2021-06-05 11:03:06,425 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:03:06,602 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:03:06,816 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2021-06-05 11:03:06,964 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2021-06-05 11:03:07,109 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2021-06-05 11:03:07,299 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2021-06-05 11:03:07,485 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-06-05 11:03:07,712 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-06-05 11:03:07,878 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2021-06-05 11:03:08,092 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 74 [2021-06-05 11:03:08,297 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:03:08,498 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2021-06-05 11:03:08,696 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-05 11:03:08,910 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:03:09,115 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:03:09,322 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2021-06-05 11:03:09,533 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:03:09,766 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:03:09,961 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:03:10,174 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2021-06-05 11:03:10,356 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:03:10,588 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:03:10,807 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:03:11,032 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-06-05 11:03:11,326 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-06-05 11:03:11,531 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2021-06-05 11:03:11,814 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:03:12,038 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:03:12,272 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:03:12,497 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:03:12,781 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 86 [2021-06-05 11:03:13,036 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:03:13,320 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2021-06-05 11:03:13,676 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2021-06-05 11:03:14,008 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2021-06-05 11:03:14,312 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2021-06-05 11:03:14,601 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 90 [2021-06-05 11:03:14,819 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:03:14,820 INFO L93 Difference]: Finished difference Result 4383 states and 8992 transitions. [2021-06-05 11:03:14,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 99 states. [2021-06-05 11:03:14,820 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:03:14,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:03:14,832 INFO L225 Difference]: With dead ends: 4383 [2021-06-05 11:03:14,832 INFO L226 Difference]: Without dead ends: 4383 [2021-06-05 11:03:14,834 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 126 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 121 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2626 ImplicationChecksByTransitivity, 13689.6ms TimeCoverageRelationStatistics Valid=4347, Invalid=10659, Unknown=0, NotChecked=0, Total=15006 [2021-06-05 11:03:14,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4383 states. [2021-06-05 11:03:14,872 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4383 to 3158. [2021-06-05 11:03:14,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3155 states have (on average 2.05229793977813) internal successors, (6475), 3157 states have internal predecessors, (6475), 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) [2021-06-05 11:03:14,881 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 6475 transitions. [2021-06-05 11:03:14,881 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 6475 transitions. Word has length 85 [2021-06-05 11:03:14,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:03:14,881 INFO L482 AbstractCegarLoop]: Abstraction has 3158 states and 6475 transitions. [2021-06-05 11:03:14,882 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:14,882 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 6475 transitions. [2021-06-05 11:03:14,884 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:03:14,885 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:03:14,885 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:03:14,885 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 11:03:14,885 INFO L430 AbstractCegarLoop]: === Iteration 6 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:03:14,885 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:03:14,885 INFO L82 PathProgramCache]: Analyzing trace with hash -1097887635, now seen corresponding path program 3 times [2021-06-05 11:03:14,885 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:03:14,885 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1233384111] [2021-06-05 11:03:14,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:03:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:03:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:03:15,395 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:03:15,395 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1233384111] [2021-06-05 11:03:15,395 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1233384111] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:03:15,395 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:03:15,395 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:03:15,395 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383667616] [2021-06-05 11:03:15,395 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:03:15,395 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:03:15,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:03:15,396 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:03:15,396 INFO L87 Difference]: Start difference. First operand 3158 states and 6475 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:17,231 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-06-05 11:03:17,586 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-06-05 11:03:18,297 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:03:19,452 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 69 [2021-06-05 11:03:19,584 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 65 [2021-06-05 11:03:19,863 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:03:20,017 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2021-06-05 11:03:20,159 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 68 [2021-06-05 11:03:20,302 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 65 [2021-06-05 11:03:20,479 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:03:20,648 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-06-05 11:03:20,816 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2021-06-05 11:03:21,109 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2021-06-05 11:03:21,311 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-06-05 11:03:21,474 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 72 [2021-06-05 11:03:21,784 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:03:21,978 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:03:22,160 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-06-05 11:03:22,308 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 68 [2021-06-05 11:03:22,454 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2021-06-05 11:03:22,646 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2021-06-05 11:03:22,842 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 77 [2021-06-05 11:03:23,043 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2021-06-05 11:03:23,208 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 73 [2021-06-05 11:03:23,431 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:03:23,634 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 77 [2021-06-05 11:03:23,825 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 76 [2021-06-05 11:03:24,042 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-05 11:03:24,254 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:03:24,479 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2021-06-05 11:03:24,656 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2021-06-05 11:03:24,869 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:03:25,105 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:03:25,327 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2021-06-05 11:03:25,521 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2021-06-05 11:03:25,705 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:03:25,938 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:03:26,173 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:03:26,402 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2021-06-05 11:03:26,673 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:03:26,888 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:03:27,125 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:03:27,396 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:03:27,628 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:03:27,852 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 82 [2021-06-05 11:03:28,093 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:03:28,355 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 86 [2021-06-05 11:03:28,614 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:03:28,886 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2021-06-05 11:03:29,216 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2021-06-05 11:03:29,544 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 89 [2021-06-05 11:03:29,804 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2021-06-05 11:03:30,122 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 90 [2021-06-05 11:03:30,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:03:30,422 INFO L93 Difference]: Finished difference Result 4666 states and 9583 transitions. [2021-06-05 11:03:30,422 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-06-05 11:03:30,422 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:03:30,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:03:30,434 INFO L225 Difference]: With dead ends: 4666 [2021-06-05 11:03:30,434 INFO L226 Difference]: Without dead ends: 4666 [2021-06-05 11:03:30,436 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 122 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2661 ImplicationChecksByTransitivity, 13767.5ms TimeCoverageRelationStatistics Valid=4408, Invalid=10844, Unknown=0, NotChecked=0, Total=15252 [2021-06-05 11:03:30,442 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4666 states. [2021-06-05 11:03:30,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4666 to 3167. [2021-06-05 11:03:30,477 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3167 states, 3164 states have (on average 2.052465233881163) internal successors, (6494), 3166 states have internal predecessors, (6494), 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) [2021-06-05 11:03:30,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3167 states to 3167 states and 6494 transitions. [2021-06-05 11:03:30,481 INFO L78 Accepts]: Start accepts. Automaton has 3167 states and 6494 transitions. Word has length 85 [2021-06-05 11:03:30,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:03:30,482 INFO L482 AbstractCegarLoop]: Abstraction has 3167 states and 6494 transitions. [2021-06-05 11:03:30,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:30,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3167 states and 6494 transitions. [2021-06-05 11:03:30,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:03:30,485 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:03:30,485 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:03:30,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 11:03:30,485 INFO L430 AbstractCegarLoop]: === Iteration 7 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:03:30,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:03:30,485 INFO L82 PathProgramCache]: Analyzing trace with hash -273769133, now seen corresponding path program 4 times [2021-06-05 11:03:30,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:03:30,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [514419965] [2021-06-05 11:03:30,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:03:30,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:03:30,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:03:30,959 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:03:30,959 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [514419965] [2021-06-05 11:03:30,959 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [514419965] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:03:30,959 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:03:30,959 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:03:30,959 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334933140] [2021-06-05 11:03:30,960 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:03:30,960 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:03:30,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:03:30,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=630, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:03:30,960 INFO L87 Difference]: Start difference. First operand 3167 states and 6494 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:32,760 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-06-05 11:03:33,435 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 62 [2021-06-05 11:03:33,680 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-06-05 11:03:34,540 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 11:03:34,672 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 65 [2021-06-05 11:03:34,964 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 69 [2021-06-05 11:03:35,364 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:03:35,519 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 71 [2021-06-05 11:03:35,668 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 70 [2021-06-05 11:03:35,943 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-06-05 11:03:36,111 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-06-05 11:03:36,258 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2021-06-05 11:03:36,433 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 74 [2021-06-05 11:03:36,566 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2021-06-05 11:03:36,774 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2021-06-05 11:03:36,959 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2021-06-05 11:03:37,119 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 72 [2021-06-05 11:03:37,444 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:03:37,618 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2021-06-05 11:03:37,770 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 68 [2021-06-05 11:03:37,911 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 69 [2021-06-05 11:03:38,123 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:03:38,322 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-06-05 11:03:38,489 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 73 [2021-06-05 11:03:38,693 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2021-06-05 11:03:38,893 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2021-06-05 11:03:39,080 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2021-06-05 11:03:39,295 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2021-06-05 11:03:39,522 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:03:39,691 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2021-06-05 11:03:39,864 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2021-06-05 11:03:40,081 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 84 [2021-06-05 11:03:40,289 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:03:40,475 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2021-06-05 11:03:40,738 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2021-06-05 11:03:40,937 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-06-05 11:03:41,188 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:03:41,399 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 82 [2021-06-05 11:03:41,603 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2021-06-05 11:03:41,824 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2021-06-05 11:03:42,044 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 87 [2021-06-05 11:03:42,279 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2021-06-05 11:03:42,516 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-06-05 11:03:42,815 WARN L205 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:03:43,116 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 90 [2021-06-05 11:03:43,389 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2021-06-05 11:03:43,682 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 91 [2021-06-05 11:03:43,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:03:43,911 INFO L93 Difference]: Finished difference Result 4118 states and 8438 transitions. [2021-06-05 11:03:43,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2021-06-05 11:03:43,913 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:03:43,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:03:43,918 INFO L225 Difference]: With dead ends: 4118 [2021-06-05 11:03:43,918 INFO L226 Difference]: Without dead ends: 4118 [2021-06-05 11:03:43,920 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 115 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2387 ImplicationChecksByTransitivity, 11974.5ms TimeCoverageRelationStatistics Valid=3909, Invalid=9663, Unknown=0, NotChecked=0, Total=13572 [2021-06-05 11:03:43,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4118 states. [2021-06-05 11:03:43,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4118 to 2895. [2021-06-05 11:03:43,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2892 states have (on average 2.050829875518672) internal successors, (5931), 2894 states have internal predecessors, (5931), 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) [2021-06-05 11:03:43,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 5931 transitions. [2021-06-05 11:03:43,960 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 5931 transitions. Word has length 85 [2021-06-05 11:03:43,960 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:03:43,960 INFO L482 AbstractCegarLoop]: Abstraction has 2895 states and 5931 transitions. [2021-06-05 11:03:43,960 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:43,961 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 5931 transitions. [2021-06-05 11:03:43,963 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:03:43,963 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:03:43,963 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:03:43,963 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 11:03:43,963 INFO L430 AbstractCegarLoop]: === Iteration 8 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:03:43,964 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:03:43,964 INFO L82 PathProgramCache]: Analyzing trace with hash -2109498591, now seen corresponding path program 5 times [2021-06-05 11:03:43,964 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:03:43,964 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304107470] [2021-06-05 11:03:43,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:03:43,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:03:44,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:03:44,423 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:03:44,423 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304107470] [2021-06-05 11:03:44,423 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304107470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:03:44,423 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:03:44,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:03:44,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672614546] [2021-06-05 11:03:44,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:03:44,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:03:44,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:03:44,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:03:44,424 INFO L87 Difference]: Start difference. First operand 2895 states and 5931 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:45,597 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2021-06-05 11:03:45,875 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-06-05 11:03:46,033 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-06-05 11:03:46,432 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 11:03:46,589 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:03:46,764 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2021-06-05 11:03:46,928 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 66 [2021-06-05 11:03:47,073 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:03:47,221 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-06-05 11:03:47,371 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2021-06-05 11:03:47,527 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:03:47,686 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:03:47,850 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-06-05 11:03:48,005 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2021-06-05 11:03:48,178 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2021-06-05 11:03:48,342 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-06-05 11:03:48,511 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-06-05 11:03:48,655 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2021-06-05 11:03:48,844 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 74 [2021-06-05 11:03:49,024 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:03:49,214 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2021-06-05 11:03:49,363 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-06-05 11:03:49,542 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-05 11:03:49,730 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:03:49,901 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:03:50,077 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2021-06-05 11:03:50,280 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:03:50,487 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:03:50,652 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:03:50,815 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2021-06-05 11:03:50,991 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:03:51,197 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:03:51,397 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:03:51,584 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-06-05 11:03:51,762 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:03:52,013 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-06-05 11:03:52,214 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2021-06-05 11:03:52,460 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:03:52,664 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:03:52,875 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:03:53,079 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:03:53,330 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 86 [2021-06-05 11:03:53,555 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:03:53,798 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2021-06-05 11:03:54,091 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2021-06-05 11:03:54,387 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2021-06-05 11:03:54,674 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2021-06-05 11:03:54,999 WARN L205 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 90 [2021-06-05 11:03:55,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:03:55,256 INFO L93 Difference]: Finished difference Result 4393 states and 9027 transitions. [2021-06-05 11:03:55,256 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 72 states. [2021-06-05 11:03:55,257 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:03:55,257 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:03:55,261 INFO L225 Difference]: With dead ends: 4393 [2021-06-05 11:03:55,261 INFO L226 Difference]: Without dead ends: 4393 [2021-06-05 11:03:55,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1498 ImplicationChecksByTransitivity, 9962.4ms TimeCoverageRelationStatistics Valid=2765, Invalid=6355, Unknown=0, NotChecked=0, Total=9120 [2021-06-05 11:03:55,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2021-06-05 11:03:55,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 2900. [2021-06-05 11:03:55,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2900 states, 2897 states have (on average 2.050742147048671) internal successors, (5941), 2899 states have internal predecessors, (5941), 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) [2021-06-05 11:03:55,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2900 states to 2900 states and 5941 transitions. [2021-06-05 11:03:55,297 INFO L78 Accepts]: Start accepts. Automaton has 2900 states and 5941 transitions. Word has length 85 [2021-06-05 11:03:55,297 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:03:55,297 INFO L482 AbstractCegarLoop]: Abstraction has 2900 states and 5941 transitions. [2021-06-05 11:03:55,297 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:55,297 INFO L276 IsEmpty]: Start isEmpty. Operand 2900 states and 5941 transitions. [2021-06-05 11:03:55,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:03:55,300 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:03:55,300 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:03:55,300 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 11:03:55,300 INFO L430 AbstractCegarLoop]: === Iteration 9 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:03:55,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:03:55,300 INFO L82 PathProgramCache]: Analyzing trace with hash -356156213, now seen corresponding path program 6 times [2021-06-05 11:03:55,300 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:03:55,300 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066694065] [2021-06-05 11:03:55,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:03:55,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:03:55,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:03:55,761 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:03:55,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066694065] [2021-06-05 11:03:55,762 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066694065] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:03:55,762 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:03:55,762 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:03:55,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053871047] [2021-06-05 11:03:55,762 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:03:55,762 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:03:55,762 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:03:55,762 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:03:55,763 INFO L87 Difference]: Start difference. First operand 2900 states and 5941 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:03:56,993 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2021-06-05 11:03:57,125 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 59 [2021-06-05 11:03:57,420 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:03:57,588 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-06-05 11:03:57,877 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 67 [2021-06-05 11:03:58,026 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2021-06-05 11:03:58,187 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:03:58,334 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 67 [2021-06-05 11:03:58,479 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-06-05 11:03:58,630 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:03:58,791 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 70 [2021-06-05 11:03:58,946 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 71 [2021-06-05 11:03:59,132 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:03:59,291 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 70 [2021-06-05 11:03:59,455 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-06-05 11:03:59,616 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:03:59,796 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2021-06-05 11:03:59,941 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 66 [2021-06-05 11:04:00,114 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:04:00,292 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 74 [2021-06-05 11:04:00,490 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:04:00,642 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 71 [2021-06-05 11:04:00,826 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:04:00,987 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2021-06-05 11:04:01,185 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-05 11:04:01,383 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:04:01,601 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2021-06-05 11:04:01,757 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 70 [2021-06-05 11:04:01,955 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:04:02,176 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:04:02,376 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 78 [2021-06-05 11:04:02,557 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 75 [2021-06-05 11:04:02,737 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:04:02,955 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:04:03,194 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:04:03,394 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-06-05 11:04:03,646 WARN L205 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:04:03,857 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:04:04,061 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:04:04,299 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:04:04,511 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:04:04,729 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 82 [2021-06-05 11:04:04,939 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:04:05,202 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 86 [2021-06-05 11:04:05,435 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:04:05,688 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2021-06-05 11:04:05,988 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2021-06-05 11:04:06,326 WARN L205 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 89 [2021-06-05 11:04:06,577 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2021-06-05 11:04:06,890 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 90 [2021-06-05 11:04:07,255 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:07,255 INFO L93 Difference]: Finished difference Result 4604 states and 9472 transitions. [2021-06-05 11:04:07,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 73 states. [2021-06-05 11:04:07,255 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:04:07,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:07,261 INFO L225 Difference]: With dead ends: 4604 [2021-06-05 11:04:07,261 INFO L226 Difference]: Without dead ends: 4604 [2021-06-05 11:04:07,262 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1366 ImplicationChecksByTransitivity, 10348.6ms TimeCoverageRelationStatistics Valid=2826, Invalid=6486, Unknown=0, NotChecked=0, Total=9312 [2021-06-05 11:04:07,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4604 states. [2021-06-05 11:04:07,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4604 to 3151. [2021-06-05 11:04:07,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3151 states, 3148 states have (on average 2.0530495552731893) internal successors, (6463), 3150 states have internal predecessors, (6463), 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) [2021-06-05 11:04:07,301 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3151 states to 3151 states and 6463 transitions. [2021-06-05 11:04:07,301 INFO L78 Accepts]: Start accepts. Automaton has 3151 states and 6463 transitions. Word has length 85 [2021-06-05 11:04:07,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:07,302 INFO L482 AbstractCegarLoop]: Abstraction has 3151 states and 6463 transitions. [2021-06-05 11:04:07,302 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:07,302 INFO L276 IsEmpty]: Start isEmpty. Operand 3151 states and 6463 transitions. [2021-06-05 11:04:07,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:07,304 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:07,305 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:04:07,305 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 11:04:07,305 INFO L430 AbstractCegarLoop]: === Iteration 10 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:07,305 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:07,305 INFO L82 PathProgramCache]: Analyzing trace with hash 467962289, now seen corresponding path program 7 times [2021-06-05 11:04:07,305 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:07,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1149554957] [2021-06-05 11:04:07,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:07,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:07,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:07,772 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:07,772 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1149554957] [2021-06-05 11:04:07,772 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1149554957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:07,772 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:07,772 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:04:07,772 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1896433368] [2021-06-05 11:04:07,773 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:04:07,773 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:07,773 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:04:07,773 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=634, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:04:07,773 INFO L87 Difference]: Start difference. First operand 3151 states and 6463 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:10,336 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 62 [2021-06-05 11:04:11,295 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-06-05 11:04:11,660 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-06-05 11:04:12,291 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-06-05 11:04:12,440 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-06-05 11:04:12,586 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2021-06-05 11:04:12,987 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 67 [2021-06-05 11:04:13,137 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-06-05 11:04:13,302 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2021-06-05 11:04:13,600 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:04:13,734 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2021-06-05 11:04:13,899 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 69 [2021-06-05 11:04:14,077 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-06-05 11:04:14,380 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-06-05 11:04:14,535 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 72 [2021-06-05 11:04:14,741 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 72 [2021-06-05 11:04:14,920 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 75 [2021-06-05 11:04:15,211 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 72 [2021-06-05 11:04:15,398 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-06-05 11:04:15,593 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 70 [2021-06-05 11:04:15,750 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2021-06-05 11:04:15,891 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2021-06-05 11:04:16,073 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:04:16,251 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-06-05 11:04:16,425 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 66 [2021-06-05 11:04:16,605 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-06-05 11:04:16,821 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2021-06-05 11:04:17,037 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2021-06-05 11:04:17,224 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 71 [2021-06-05 11:04:17,426 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 76 [2021-06-05 11:04:17,633 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:04:17,826 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2021-06-05 11:04:18,062 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-06-05 11:04:18,291 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:04:18,480 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 70 [2021-06-05 11:04:18,676 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:04:18,899 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 82 [2021-06-05 11:04:19,138 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:04:19,331 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:04:19,614 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2021-06-05 11:04:19,812 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:04:20,084 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:04:20,320 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 82 [2021-06-05 11:04:20,538 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:04:20,769 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2021-06-05 11:04:21,012 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 85 [2021-06-05 11:04:21,257 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2021-06-05 11:04:21,526 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 87 [2021-06-05 11:04:21,859 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:04:22,181 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 90 [2021-06-05 11:04:22,475 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 84 [2021-06-05 11:04:22,767 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 91 [2021-06-05 11:04:23,005 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:23,005 INFO L93 Difference]: Finished difference Result 4734 states and 9719 transitions. [2021-06-05 11:04:23,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 106 states. [2021-06-05 11:04:23,006 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:04:23,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:23,011 INFO L225 Difference]: With dead ends: 4734 [2021-06-05 11:04:23,011 INFO L226 Difference]: Without dead ends: 4734 [2021-06-05 11:04:23,012 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 128 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2963 ImplicationChecksByTransitivity, 13946.8ms TimeCoverageRelationStatistics Valid=4820, Invalid=11950, Unknown=0, NotChecked=0, Total=16770 [2021-06-05 11:04:23,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4734 states. [2021-06-05 11:04:23,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4734 to 2895. [2021-06-05 11:04:23,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2892 states have (on average 2.050829875518672) internal successors, (5931), 2894 states have internal predecessors, (5931), 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) [2021-06-05 11:04:23,052 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 5931 transitions. [2021-06-05 11:04:23,053 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 5931 transitions. Word has length 85 [2021-06-05 11:04:23,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:23,053 INFO L482 AbstractCegarLoop]: Abstraction has 2895 states and 5931 transitions. [2021-06-05 11:04:23,053 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:23,053 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 5931 transitions. [2021-06-05 11:04:23,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:23,056 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:23,056 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:04:23,056 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 11:04:23,056 INFO L430 AbstractCegarLoop]: === Iteration 11 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:23,056 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:23,056 INFO L82 PathProgramCache]: Analyzing trace with hash -666596669, now seen corresponding path program 8 times [2021-06-05 11:04:23,056 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:23,056 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825019182] [2021-06-05 11:04:23,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:23,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:23,503 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:23,503 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:23,503 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825019182] [2021-06-05 11:04:23,503 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1825019182] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:23,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:23,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:04:23,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [294997041] [2021-06-05 11:04:23,504 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:04:23,504 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:23,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:04:23,504 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:04:23,504 INFO L87 Difference]: Start difference. First operand 2895 states and 5931 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:24,457 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-06-05 11:04:24,627 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 66 [2021-06-05 11:04:24,779 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-06-05 11:04:24,959 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:04:25,135 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 66 [2021-06-05 11:04:25,286 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2021-06-05 11:04:25,455 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:04:25,610 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 70 [2021-06-05 11:04:25,810 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 70 [2021-06-05 11:04:25,968 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 72 [2021-06-05 11:04:26,166 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 74 [2021-06-05 11:04:26,338 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:04:26,526 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-05 11:04:26,713 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:04:26,879 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:04:27,077 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:04:27,279 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:04:27,439 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:04:27,616 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:04:27,820 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:04:28,012 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:04:28,186 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-06-05 11:04:28,412 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 81 [2021-06-05 11:04:28,602 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2021-06-05 11:04:28,838 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:04:29,036 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:04:29,234 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 82 [2021-06-05 11:04:29,435 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:04:29,649 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 86 [2021-06-05 11:04:29,870 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:04:30,111 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2021-06-05 11:04:30,377 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2021-06-05 11:04:30,657 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 89 [2021-06-05 11:04:30,927 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 132 DAG size of output: 85 [2021-06-05 11:04:31,208 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 90 [2021-06-05 11:04:31,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:31,460 INFO L93 Difference]: Finished difference Result 3811 states and 7820 transitions. [2021-06-05 11:04:31,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-06-05 11:04:31,460 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:04:31,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:31,464 INFO L225 Difference]: With dead ends: 3811 [2021-06-05 11:04:31,465 INFO L226 Difference]: Without dead ends: 3811 [2021-06-05 11:04:31,465 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 804 ImplicationChecksByTransitivity, 7286.9ms TimeCoverageRelationStatistics Valid=1811, Invalid=4195, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:04:31,470 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3811 states. [2021-06-05 11:04:31,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3811 to 2897. [2021-06-05 11:04:31,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2897 states, 2894 states have (on average 2.0507947477539736) internal successors, (5935), 2896 states have internal predecessors, (5935), 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) [2021-06-05 11:04:31,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2897 states to 2897 states and 5935 transitions. [2021-06-05 11:04:31,497 INFO L78 Accepts]: Start accepts. Automaton has 2897 states and 5935 transitions. Word has length 85 [2021-06-05 11:04:31,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:31,497 INFO L482 AbstractCegarLoop]: Abstraction has 2897 states and 5935 transitions. [2021-06-05 11:04:31,497 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:31,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2897 states and 5935 transitions. [2021-06-05 11:04:31,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:31,500 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:31,500 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:04:31,500 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 11:04:31,500 INFO L430 AbstractCegarLoop]: === Iteration 12 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:31,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:31,501 INFO L82 PathProgramCache]: Analyzing trace with hash 1086745709, now seen corresponding path program 9 times [2021-06-05 11:04:31,501 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:31,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953033525] [2021-06-05 11:04:31,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:31,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:31,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:31,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:31,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953033525] [2021-06-05 11:04:31,928 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1953033525] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:31,928 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:31,928 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:04:31,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491427692] [2021-06-05 11:04:31,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:04:31,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:31,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:04:31,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:04:31,929 INFO L87 Difference]: Start difference. First operand 2897 states and 5935 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:33,047 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 64 [2021-06-05 11:04:33,179 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 61 [2021-06-05 11:04:33,361 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 66 [2021-06-05 11:04:33,555 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 11:04:33,737 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:04:33,903 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:04:34,075 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-06-05 11:04:34,224 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 76 [2021-06-05 11:04:34,410 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 73 [2021-06-05 11:04:34,594 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:04:34,779 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:04:34,934 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 73 [2021-06-05 11:04:35,117 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2021-06-05 11:04:35,294 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 77 [2021-06-05 11:04:35,466 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2021-06-05 11:04:35,661 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:04:35,842 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 77 [2021-06-05 11:04:35,999 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 76 [2021-06-05 11:04:36,191 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 72 [2021-06-05 11:04:36,393 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:04:36,594 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 81 [2021-06-05 11:04:36,746 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 72 [2021-06-05 11:04:36,941 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:04:37,154 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:04:37,346 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2021-06-05 11:04:37,522 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 77 [2021-06-05 11:04:37,690 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:04:37,904 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 78 [2021-06-05 11:04:38,106 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:04:38,303 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2021-06-05 11:04:38,541 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 81 [2021-06-05 11:04:38,758 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:04:38,952 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:04:39,176 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 79 [2021-06-05 11:04:39,385 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 78 [2021-06-05 11:04:39,597 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 82 [2021-06-05 11:04:39,814 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:04:40,082 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 86 [2021-06-05 11:04:40,310 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 80 [2021-06-05 11:04:40,560 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 88 [2021-06-05 11:04:40,854 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 91 [2021-06-05 11:04:41,198 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 89 [2021-06-05 11:04:41,451 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 85 [2021-06-05 11:04:41,759 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 90 [2021-06-05 11:04:42,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:42,119 INFO L93 Difference]: Finished difference Result 4242 states and 8727 transitions. [2021-06-05 11:04:42,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2021-06-05 11:04:42,119 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:04:42,119 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:42,124 INFO L225 Difference]: With dead ends: 4242 [2021-06-05 11:04:42,124 INFO L226 Difference]: Without dead ends: 4242 [2021-06-05 11:04:42,125 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1053 ImplicationChecksByTransitivity, 9107.0ms TimeCoverageRelationStatistics Valid=2339, Invalid=5317, Unknown=0, NotChecked=0, Total=7656 [2021-06-05 11:04:42,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4242 states. [2021-06-05 11:04:42,153 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4242 to 3148. [2021-06-05 11:04:42,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3148 states, 3145 states have (on average 2.0531001589825117) internal successors, (6457), 3147 states have internal predecessors, (6457), 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) [2021-06-05 11:04:42,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3148 states to 3148 states and 6457 transitions. [2021-06-05 11:04:42,159 INFO L78 Accepts]: Start accepts. Automaton has 3148 states and 6457 transitions. Word has length 85 [2021-06-05 11:04:42,159 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:42,160 INFO L482 AbstractCegarLoop]: Abstraction has 3148 states and 6457 transitions. [2021-06-05 11:04:42,160 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:42,160 INFO L276 IsEmpty]: Start isEmpty. Operand 3148 states and 6457 transitions. [2021-06-05 11:04:42,164 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:42,164 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:42,164 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:04:42,165 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 11:04:42,165 INFO L430 AbstractCegarLoop]: === Iteration 13 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:42,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:42,165 INFO L82 PathProgramCache]: Analyzing trace with hash 1910864211, now seen corresponding path program 10 times [2021-06-05 11:04:42,165 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:42,165 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598762280] [2021-06-05 11:04:42,165 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:42,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:42,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:42,605 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:42,605 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598762280] [2021-06-05 11:04:42,605 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598762280] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:42,605 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:42,605 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:04:42,605 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1279127783] [2021-06-05 11:04:42,606 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:04:42,606 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:42,606 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:04:42,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=635, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:04:42,606 INFO L87 Difference]: Start difference. First operand 3148 states and 6457 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:45,099 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-06-05 11:04:45,925 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-06-05 11:04:47,181 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2021-06-05 11:04:47,593 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-06-05 11:04:47,733 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2021-06-05 11:04:48,018 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:04:48,154 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-06-05 11:04:48,318 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2021-06-05 11:04:48,494 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-06-05 11:04:48,627 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2021-06-05 11:04:48,805 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-06-05 11:04:48,953 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2021-06-05 11:04:49,143 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-06-05 11:04:49,310 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 75 [2021-06-05 11:04:49,606 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2021-06-05 11:04:49,775 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 73 [2021-06-05 11:04:49,981 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-06-05 11:04:50,131 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2021-06-05 11:04:50,272 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2021-06-05 11:04:50,456 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:04:50,636 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 75 [2021-06-05 11:04:50,842 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-06-05 11:04:51,011 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-06-05 11:04:51,225 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:04:51,422 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 78 [2021-06-05 11:04:51,619 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-06-05 11:04:51,813 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 78 [2021-06-05 11:04:52,017 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2021-06-05 11:04:52,203 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2021-06-05 11:04:52,402 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2021-06-05 11:04:52,609 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 82 [2021-06-05 11:04:52,836 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:04:53,011 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2021-06-05 11:04:53,214 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2021-06-05 11:04:53,390 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2021-06-05 11:04:53,621 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 84 [2021-06-05 11:04:53,835 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:04:54,033 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2021-06-05 11:04:54,313 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 85 [2021-06-05 11:04:54,514 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-06-05 11:04:54,790 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:04:55,016 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 82 [2021-06-05 11:04:55,233 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2021-06-05 11:04:55,453 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 81 [2021-06-05 11:04:55,701 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 87 [2021-06-05 11:04:55,954 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 84 [2021-06-05 11:04:56,222 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-06-05 11:04:56,575 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:04:56,905 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 90 [2021-06-05 11:04:57,202 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2021-06-05 11:04:57,489 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 91 [2021-06-05 11:04:57,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:04:57,735 INFO L93 Difference]: Finished difference Result 4393 states and 9016 transitions. [2021-06-05 11:04:57,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 107 states. [2021-06-05 11:04:57,735 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:04:57,735 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:04:57,739 INFO L225 Difference]: With dead ends: 4393 [2021-06-05 11:04:57,739 INFO L226 Difference]: Without dead ends: 4393 [2021-06-05 11:04:57,740 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 134 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 129 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3010 ImplicationChecksByTransitivity, 13963.6ms TimeCoverageRelationStatistics Valid=4893, Invalid=12137, Unknown=0, NotChecked=0, Total=17030 [2021-06-05 11:04:57,745 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4393 states. [2021-06-05 11:04:57,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4393 to 2895. [2021-06-05 11:04:57,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2892 states have (on average 2.050829875518672) internal successors, (5931), 2894 states have internal predecessors, (5931), 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) [2021-06-05 11:04:57,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 5931 transitions. [2021-06-05 11:04:57,773 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 5931 transitions. Word has length 85 [2021-06-05 11:04:57,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:04:57,773 INFO L482 AbstractCegarLoop]: Abstraction has 2895 states and 5931 transitions. [2021-06-05 11:04:57,773 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:57,774 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 5931 transitions. [2021-06-05 11:04:57,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:04:57,776 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:04:57,776 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:04:57,776 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 11:04:57,776 INFO L430 AbstractCegarLoop]: === Iteration 14 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:04:57,777 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:04:57,777 INFO L82 PathProgramCache]: Analyzing trace with hash 124700321, now seen corresponding path program 11 times [2021-06-05 11:04:57,777 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:04:57,777 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1172066330] [2021-06-05 11:04:57,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:04:57,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:04:58,208 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:04:58,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:04:58,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1172066330] [2021-06-05 11:04:58,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1172066330] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:04:58,209 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:04:58,209 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:04:58,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11879055] [2021-06-05 11:04:58,209 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:04:58,209 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:04:58,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:04:58,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=638, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:04:58,210 INFO L87 Difference]: Start difference. First operand 2895 states and 5931 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:04:59,201 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 62 [2021-06-05 11:04:59,365 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 64 [2021-06-05 11:04:59,594 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 66 [2021-06-05 11:04:59,751 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:04:59,935 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 71 [2021-06-05 11:05:00,137 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 70 [2021-06-05 11:05:00,329 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:05:00,519 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 70 [2021-06-05 11:05:00,699 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-06-05 11:05:00,888 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 74 [2021-06-05 11:05:01,092 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-06-05 11:05:01,259 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 81 [2021-06-05 11:05:01,461 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 76 [2021-06-05 11:05:01,653 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 75 [2021-06-05 11:05:01,912 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 79 [2021-06-05 11:05:02,121 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-05 11:05:02,421 WARN L205 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-06-05 11:05:02,622 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 76 [2021-06-05 11:05:02,811 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 80 [2021-06-05 11:05:03,049 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2021-06-05 11:05:03,265 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 84 [2021-06-05 11:05:03,518 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:05:03,765 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 86 [2021-06-05 11:05:04,047 WARN L205 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 89 [2021-06-05 11:05:04,331 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 134 DAG size of output: 87 [2021-06-05 11:05:04,653 WARN L205 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 83 [2021-06-05 11:05:04,951 WARN L205 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 88 [2021-06-05 11:05:05,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:05,294 INFO L93 Difference]: Finished difference Result 3744 states and 7688 transitions. [2021-06-05 11:05:05,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2021-06-05 11:05:05,295 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:05:05,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:05,299 INFO L225 Difference]: With dead ends: 3744 [2021-06-05 11:05:05,299 INFO L226 Difference]: Without dead ends: 3744 [2021-06-05 11:05:05,299 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 68 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 589 ImplicationChecksByTransitivity, 6355.0ms TimeCoverageRelationStatistics Valid=1425, Invalid=3405, Unknown=0, NotChecked=0, Total=4830 [2021-06-05 11:05:05,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3744 states. [2021-06-05 11:05:05,326 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3744 to 3146. [2021-06-05 11:05:05,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3146 states, 3143 states have (on average 2.0531339484568885) internal successors, (6453), 3145 states have internal predecessors, (6453), 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) [2021-06-05 11:05:05,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3146 states to 3146 states and 6453 transitions. [2021-06-05 11:05:05,332 INFO L78 Accepts]: Start accepts. Automaton has 3146 states and 6453 transitions. Word has length 85 [2021-06-05 11:05:05,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:05,332 INFO L482 AbstractCegarLoop]: Abstraction has 3146 states and 6453 transitions. [2021-06-05 11:05:05,332 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:05:05,333 INFO L276 IsEmpty]: Start isEmpty. Operand 3146 states and 6453 transitions. [2021-06-05 11:05:05,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:05:05,335 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:05,335 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:05:05,336 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 11:05:05,336 INFO L430 AbstractCegarLoop]: === Iteration 15 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:05,336 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:05,336 INFO L82 PathProgramCache]: Analyzing trace with hash 948818823, now seen corresponding path program 12 times [2021-06-05 11:05:05,336 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:05,336 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460843157] [2021-06-05 11:05:05,336 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:05,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:05,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:05,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:05,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460843157] [2021-06-05 11:05:05,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460843157] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:05,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:05,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2021-06-05 11:05:05,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643579445] [2021-06-05 11:05:05,801 INFO L462 AbstractCegarLoop]: Interpolant automaton has 27 states [2021-06-05 11:05:05,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:05,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2021-06-05 11:05:05,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=636, Unknown=0, NotChecked=0, Total=702 [2021-06-05 11:05:05,801 INFO L87 Difference]: Start difference. First operand 3146 states and 6453 transitions. Second operand has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:05:07,754 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 53 [2021-06-05 11:05:07,997 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 60 [2021-06-05 11:05:08,376 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 67 [2021-06-05 11:05:08,737 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 64 [2021-06-05 11:05:08,983 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 64 [2021-06-05 11:05:09,124 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 62 [2021-06-05 11:05:09,315 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 62 [2021-06-05 11:05:09,725 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 69 [2021-06-05 11:05:10,078 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-06-05 11:05:10,354 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-06-05 11:05:10,497 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 68 [2021-06-05 11:05:10,902 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 72 [2021-06-05 11:05:11,065 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 68 [2021-06-05 11:05:11,341 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 72 [2021-06-05 11:05:11,493 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 74 [2021-06-05 11:05:11,633 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2021-06-05 11:05:11,784 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 66 [2021-06-05 11:05:11,929 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-06-05 11:05:12,119 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:05:12,291 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 72 [2021-06-05 11:05:12,466 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 77 [2021-06-05 11:05:12,606 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 69 [2021-06-05 11:05:12,779 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2021-06-05 11:05:12,973 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 76 [2021-06-05 11:05:13,156 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 75 [2021-06-05 11:05:13,470 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 74 [2021-06-05 11:05:13,666 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2021-06-05 11:05:13,842 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 78 [2021-06-05 11:05:13,997 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2021-06-05 11:05:14,153 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 70 [2021-06-05 11:05:14,378 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:05:14,576 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2021-06-05 11:05:14,769 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 81 [2021-06-05 11:05:14,937 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-06-05 11:05:15,175 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:05:15,377 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2021-06-05 11:05:15,565 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 79 [2021-06-05 11:05:15,775 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 78 [2021-06-05 11:05:15,986 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 79 [2021-06-05 11:05:16,207 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 85 [2021-06-05 11:05:16,376 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 75 [2021-06-05 11:05:16,591 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 82 [2021-06-05 11:05:16,835 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 83 [2021-06-05 11:05:17,065 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2021-06-05 11:05:17,258 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 80 [2021-06-05 11:05:17,440 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2021-06-05 11:05:17,671 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 82 [2021-06-05 11:05:17,900 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:05:18,125 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 79 [2021-06-05 11:05:18,399 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 85 [2021-06-05 11:05:18,626 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 76 [2021-06-05 11:05:18,844 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 84 [2021-06-05 11:05:19,101 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2021-06-05 11:05:19,338 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 82 [2021-06-05 11:05:19,557 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 83 [2021-06-05 11:05:19,790 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:05:20,042 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 87 [2021-06-05 11:05:20,293 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2021-06-05 11:05:20,574 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 128 DAG size of output: 89 [2021-06-05 11:05:20,912 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 92 [2021-06-05 11:05:21,271 WARN L205 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 90 [2021-06-05 11:05:21,592 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 86 [2021-06-05 11:05:21,916 WARN L205 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 131 DAG size of output: 91 [2021-06-05 11:05:22,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:22,203 INFO L93 Difference]: Finished difference Result 4010 states and 8229 transitions. [2021-06-05 11:05:22,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 108 states. [2021-06-05 11:05:22,203 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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 85 [2021-06-05 11:05:22,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:22,206 INFO L225 Difference]: With dead ends: 4010 [2021-06-05 11:05:22,207 INFO L226 Difference]: Without dead ends: 4010 [2021-06-05 11:05:22,214 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 130 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3068 ImplicationChecksByTransitivity, 15174.9ms TimeCoverageRelationStatistics Valid=4958, Invalid=12334, Unknown=0, NotChecked=0, Total=17292 [2021-06-05 11:05:22,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4010 states. [2021-06-05 11:05:22,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4010 to 2895. [2021-06-05 11:05:22,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2895 states, 2892 states have (on average 2.050829875518672) internal successors, (5931), 2894 states have internal predecessors, (5931), 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) [2021-06-05 11:05:22,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2895 states to 2895 states and 5931 transitions. [2021-06-05 11:05:22,275 INFO L78 Accepts]: Start accepts. Automaton has 2895 states and 5931 transitions. Word has length 85 [2021-06-05 11:05:22,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:22,276 INFO L482 AbstractCegarLoop]: Abstraction has 2895 states and 5931 transitions. [2021-06-05 11:05:22,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.1481481481481484) internal successors, (85), 27 states have internal predecessors, (85), 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) [2021-06-05 11:05:22,276 INFO L276 IsEmpty]: Start isEmpty. Operand 2895 states and 5931 transitions. [2021-06-05 11:05:22,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2021-06-05 11:05:22,299 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:22,299 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:05:22,299 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 11:05:22,299 INFO L430 AbstractCegarLoop]: === Iteration 16 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:22,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:22,299 INFO L82 PathProgramCache]: Analyzing trace with hash 1688111427, now seen corresponding path program 13 times [2021-06-05 11:05:22,299 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:22,299 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1150605218] [2021-06-05 11:05:22,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:22,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:22,877 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:22,877 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:22,877 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1150605218] [2021-06-05 11:05:22,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1150605218] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:22,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:22,879 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [28] imperfect sequences [] total 28 [2021-06-05 11:05:22,879 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1380245255] [2021-06-05 11:05:22,879 INFO L462 AbstractCegarLoop]: Interpolant automaton has 28 states [2021-06-05 11:05:22,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:22,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2021-06-05 11:05:22,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=680, Unknown=0, NotChecked=0, Total=756 [2021-06-05 11:05:22,880 INFO L87 Difference]: Start difference. First operand 2895 states and 5931 transitions. Second operand has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 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) [2021-06-05 11:05:24,573 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 62 [2021-06-05 11:05:25,153 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 66 [2021-06-05 11:05:25,989 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 64 [2021-06-05 11:05:26,253 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 71 [2021-06-05 11:05:26,901 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 63 [2021-06-05 11:05:27,590 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 71 [2021-06-05 11:05:27,983 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-06-05 11:05:28,141 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:05:28,297 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 73 [2021-06-05 11:05:28,483 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 72 [2021-06-05 11:05:28,617 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 67 [2021-06-05 11:05:28,771 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2021-06-05 11:05:28,949 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-06-05 11:05:29,122 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 81 [2021-06-05 11:05:29,298 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 76 [2021-06-05 11:05:29,457 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 70 [2021-06-05 11:05:29,657 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 76 [2021-06-05 11:05:29,844 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 75 [2021-06-05 11:05:30,027 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 74 [2021-06-05 11:05:30,171 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 66 [2021-06-05 11:05:30,370 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2021-06-05 11:05:30,556 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 77 [2021-06-05 11:05:30,715 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 70 [2021-06-05 11:05:30,857 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 71 [2021-06-05 11:05:31,070 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 79 [2021-06-05 11:05:31,271 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 80 [2021-06-05 11:05:31,442 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 75 [2021-06-05 11:05:31,654 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 80 [2021-06-05 11:05:31,856 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 81 [2021-06-05 11:05:32,042 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 78 [2021-06-05 11:05:32,263 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 84 [2021-06-05 11:05:32,494 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 85 [2021-06-05 11:05:32,667 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 74 [2021-06-05 11:05:32,851 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 86 [2021-06-05 11:05:33,074 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 86 [2021-06-05 11:05:33,292 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 82 [2021-06-05 11:05:33,523 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 79 [2021-06-05 11:05:33,789 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 90 [2021-06-05 11:05:33,988 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:05:34,241 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 88 [2021-06-05 11:05:34,497 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 84 [2021-06-05 11:05:34,718 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 90 [2021-06-05 11:05:34,945 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 83 [2021-06-05 11:05:35,194 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 95 [2021-06-05 11:05:35,449 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 89 [2021-06-05 11:05:35,707 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 97 [2021-06-05 11:05:36,000 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 100 [2021-06-05 11:05:36,307 WARN L205 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 98 [2021-06-05 11:05:36,579 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 94 [2021-06-05 11:05:36,905 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 99 [2021-06-05 11:05:37,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:37,245 INFO L93 Difference]: Finished difference Result 3389 states and 6936 transitions. [2021-06-05 11:05:37,245 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2021-06-05 11:05:37,245 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 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 85 [2021-06-05 11:05:37,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:37,248 INFO L225 Difference]: With dead ends: 3389 [2021-06-05 11:05:37,248 INFO L226 Difference]: Without dead ends: 3389 [2021-06-05 11:05:37,248 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2728 ImplicationChecksByTransitivity, 13572.2ms TimeCoverageRelationStatistics Valid=4390, Invalid=11110, Unknown=0, NotChecked=0, Total=15500 [2021-06-05 11:05:37,253 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3389 states. [2021-06-05 11:05:37,270 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3389 to 2556. [2021-06-05 11:05:37,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2556 states, 2553 states have (on average 2.0505287896592246) internal successors, (5235), 2555 states have internal predecessors, (5235), 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) [2021-06-05 11:05:37,275 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2556 states to 2556 states and 5235 transitions. [2021-06-05 11:05:37,275 INFO L78 Accepts]: Start accepts. Automaton has 2556 states and 5235 transitions. Word has length 85 [2021-06-05 11:05:37,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:37,275 INFO L482 AbstractCegarLoop]: Abstraction has 2556 states and 5235 transitions. [2021-06-05 11:05:37,275 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 28 states, 28 states have (on average 3.0357142857142856) internal successors, (85), 28 states have internal predecessors, (85), 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) [2021-06-05 11:05:37,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2556 states and 5235 transitions. [2021-06-05 11:05:37,277 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:05:37,277 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:37,277 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:05:37,277 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 11:05:37,277 INFO L430 AbstractCegarLoop]: === Iteration 17 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:37,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:37,278 INFO L82 PathProgramCache]: Analyzing trace with hash -2000626556, now seen corresponding path program 1 times [2021-06-05 11:05:37,278 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:37,278 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420671625] [2021-06-05 11:05:37,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:37,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:38,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:38,198 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:38,199 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420671625] [2021-06-05 11:05:38,199 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1420671625] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:38,199 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:38,199 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:05:38,199 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2088802688] [2021-06-05 11:05:38,199 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:05:38,199 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:38,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:05:38,200 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:05:38,200 INFO L87 Difference]: Start difference. First operand 2556 states and 5235 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:05:39,438 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:05:39,629 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:05:39,865 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:05:40,090 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:05:40,294 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:05:40,661 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:05:40,878 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:05:41,067 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:05:43,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:43,575 INFO L93 Difference]: Finished difference Result 4328 states and 8894 transitions. [2021-06-05 11:05:43,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:05:43,575 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:05:43,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:43,579 INFO L225 Difference]: With dead ends: 4328 [2021-06-05 11:05:43,579 INFO L226 Difference]: Without dead ends: 4328 [2021-06-05 11:05:43,579 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 4487.4ms TimeCoverageRelationStatistics Valid=1055, Invalid=4951, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:05:43,584 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4328 states. [2021-06-05 11:05:43,607 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4328 to 3732. [2021-06-05 11:05:43,610 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3732 states, 3729 states have (on average 2.055242692410834) internal successors, (7664), 3731 states have internal predecessors, (7664), 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) [2021-06-05 11:05:43,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3732 states to 3732 states and 7664 transitions. [2021-06-05 11:05:43,615 INFO L78 Accepts]: Start accepts. Automaton has 3732 states and 7664 transitions. Word has length 88 [2021-06-05 11:05:43,615 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:43,615 INFO L482 AbstractCegarLoop]: Abstraction has 3732 states and 7664 transitions. [2021-06-05 11:05:43,615 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:05:43,615 INFO L276 IsEmpty]: Start isEmpty. Operand 3732 states and 7664 transitions. [2021-06-05 11:05:43,618 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:05:43,618 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:43,618 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:05:43,619 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 11:05:43,619 INFO L430 AbstractCegarLoop]: === Iteration 18 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:43,619 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:43,619 INFO L82 PathProgramCache]: Analyzing trace with hash -43801058, now seen corresponding path program 2 times [2021-06-05 11:05:43,619 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:43,619 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211000324] [2021-06-05 11:05:43,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:43,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:44,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:44,536 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:44,536 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211000324] [2021-06-05 11:05:44,536 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211000324] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:44,536 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:44,536 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:05:44,536 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979293280] [2021-06-05 11:05:44,536 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:05:44,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:44,537 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:05:44,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1108, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:05:44,537 INFO L87 Difference]: Start difference. First operand 3732 states and 7664 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:05:45,643 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 63 [2021-06-05 11:05:45,840 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 67 [2021-06-05 11:05:46,016 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 69 [2021-06-05 11:05:46,231 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 74 [2021-06-05 11:05:46,557 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:05:46,798 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:05:47,003 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 73 [2021-06-05 11:05:47,271 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 79 [2021-06-05 11:05:47,481 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 78 [2021-06-05 11:05:50,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:50,302 INFO L93 Difference]: Finished difference Result 6104 states and 12555 transitions. [2021-06-05 11:05:50,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:05:50,303 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:05:50,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:50,307 INFO L225 Difference]: With dead ends: 6104 [2021-06-05 11:05:50,307 INFO L226 Difference]: Without dead ends: 6104 [2021-06-05 11:05:50,307 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1205 ImplicationChecksByTransitivity, 4808.6ms TimeCoverageRelationStatistics Valid=1184, Invalid=5458, Unknown=0, NotChecked=0, Total=6642 [2021-06-05 11:05:50,313 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6104 states. [2021-06-05 11:05:50,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6104 to 3804. [2021-06-05 11:05:50,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 3801 states have (on average 2.0552486187845305) internal successors, (7812), 3803 states have internal predecessors, (7812), 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) [2021-06-05 11:05:50,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 7812 transitions. [2021-06-05 11:05:50,351 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 7812 transitions. Word has length 88 [2021-06-05 11:05:50,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:50,352 INFO L482 AbstractCegarLoop]: Abstraction has 3804 states and 7812 transitions. [2021-06-05 11:05:50,352 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:05:50,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 7812 transitions. [2021-06-05 11:05:50,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:05:50,355 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:50,355 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:05:50,355 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 11:05:50,355 INFO L430 AbstractCegarLoop]: === Iteration 19 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:50,356 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:50,356 INFO L82 PathProgramCache]: Analyzing trace with hash -703678456, now seen corresponding path program 3 times [2021-06-05 11:05:50,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:50,356 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443006369] [2021-06-05 11:05:50,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:51,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:51,141 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:51,141 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443006369] [2021-06-05 11:05:51,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443006369] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:51,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:51,142 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:05:51,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828347150] [2021-06-05 11:05:51,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:05:51,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:51,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:05:51,143 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:05:51,143 INFO L87 Difference]: Start difference. First operand 3804 states and 7812 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:05:52,323 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:05:52,534 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:05:52,743 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:05:52,961 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:05:53,281 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:05:53,534 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:05:53,750 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:05:53,953 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:05:56,491 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:05:56,491 INFO L93 Difference]: Finished difference Result 5283 states and 10853 transitions. [2021-06-05 11:05:56,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:05:56,492 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:05:56,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:05:56,495 INFO L225 Difference]: With dead ends: 5283 [2021-06-05 11:05:56,495 INFO L226 Difference]: Without dead ends: 5283 [2021-06-05 11:05:56,496 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1088 ImplicationChecksByTransitivity, 4302.3ms TimeCoverageRelationStatistics Valid=1051, Invalid=4955, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:05:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5283 states. [2021-06-05 11:05:56,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5283 to 3804. [2021-06-05 11:05:56,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 3801 states have (on average 2.0552486187845305) internal successors, (7812), 3803 states have internal predecessors, (7812), 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) [2021-06-05 11:05:56,537 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 7812 transitions. [2021-06-05 11:05:56,537 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 7812 transitions. Word has length 88 [2021-06-05 11:05:56,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:05:56,537 INFO L482 AbstractCegarLoop]: Abstraction has 3804 states and 7812 transitions. [2021-06-05 11:05:56,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:05:56,537 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 7812 transitions. [2021-06-05 11:05:56,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:05:56,541 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:05:56,541 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:05:56,541 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 11:05:56,541 INFO L430 AbstractCegarLoop]: === Iteration 20 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:05:56,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:05:56,541 INFO L82 PathProgramCache]: Analyzing trace with hash -427689492, now seen corresponding path program 4 times [2021-06-05 11:05:56,541 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:05:56,541 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236832752] [2021-06-05 11:05:56,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:05:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:05:57,311 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:05:57,311 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:05:57,311 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236832752] [2021-06-05 11:05:57,311 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236832752] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:05:57,312 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:05:57,312 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:05:57,312 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634342659] [2021-06-05 11:05:57,312 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:05:57,312 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:05:57,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:05:57,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:05:57,313 INFO L87 Difference]: Start difference. First operand 3804 states and 7812 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:05:58,482 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:05:58,683 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:05:58,874 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:05:59,087 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:05:59,296 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-06-05 11:05:59,498 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 74 [2021-06-05 11:05:59,887 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 77 [2021-06-05 11:06:00,120 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 80 [2021-06-05 11:06:00,314 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 76 [2021-06-05 11:06:02,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:02,881 INFO L93 Difference]: Finished difference Result 5358 states and 11018 transitions. [2021-06-05 11:06:02,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:06:02,881 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:02,881 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:02,885 INFO L225 Difference]: With dead ends: 5358 [2021-06-05 11:06:02,885 INFO L226 Difference]: Without dead ends: 5358 [2021-06-05 11:06:02,885 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1110 ImplicationChecksByTransitivity, 4430.5ms TimeCoverageRelationStatistics Valid=1094, Invalid=5068, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:06:02,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5358 states. [2021-06-05 11:06:02,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5358 to 3804. [2021-06-05 11:06:02,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 3801 states have (on average 2.0552486187845305) internal successors, (7812), 3803 states have internal predecessors, (7812), 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) [2021-06-05 11:06:02,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 7812 transitions. [2021-06-05 11:06:02,923 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 7812 transitions. Word has length 88 [2021-06-05 11:06:02,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:02,923 INFO L482 AbstractCegarLoop]: Abstraction has 3804 states and 7812 transitions. [2021-06-05 11:06:02,923 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:02,923 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 7812 transitions. [2021-06-05 11:06:02,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:02,926 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:02,927 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:02,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 11:06:02,927 INFO L430 AbstractCegarLoop]: === Iteration 21 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:02,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:02,927 INFO L82 PathProgramCache]: Analyzing trace with hash -731666988, now seen corresponding path program 5 times [2021-06-05 11:06:02,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:02,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [212791309] [2021-06-05 11:06:02,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:02,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:03,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:03,697 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:03,697 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [212791309] [2021-06-05 11:06:03,697 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [212791309] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:03,697 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:03,697 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:03,697 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1223670445] [2021-06-05 11:06:03,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:03,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:03,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:03,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:03,698 INFO L87 Difference]: Start difference. First operand 3804 states and 7812 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:04,571 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 54 [2021-06-05 11:06:04,870 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:06:05,076 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:06:05,301 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:06:05,509 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:06:05,709 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:06:06,070 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:06,300 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:06:06,486 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:06:09,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:09,088 INFO L93 Difference]: Finished difference Result 5493 states and 11303 transitions. [2021-06-05 11:06:09,089 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:09,089 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:09,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:09,093 INFO L225 Difference]: With dead ends: 5493 [2021-06-05 11:06:09,093 INFO L226 Difference]: Without dead ends: 5493 [2021-06-05 11:06:09,093 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 4311.1ms TimeCoverageRelationStatistics Valid=1055, Invalid=4951, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:06:09,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2021-06-05 11:06:09,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 3804. [2021-06-05 11:06:09,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3804 states, 3801 states have (on average 2.0552486187845305) internal successors, (7812), 3803 states have internal predecessors, (7812), 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) [2021-06-05 11:06:09,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3804 states to 3804 states and 7812 transitions. [2021-06-05 11:06:09,131 INFO L78 Accepts]: Start accepts. Automaton has 3804 states and 7812 transitions. Word has length 88 [2021-06-05 11:06:09,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:09,132 INFO L482 AbstractCegarLoop]: Abstraction has 3804 states and 7812 transitions. [2021-06-05 11:06:09,132 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:09,132 INFO L276 IsEmpty]: Start isEmpty. Operand 3804 states and 7812 transitions. [2021-06-05 11:06:09,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:09,135 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:09,135 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:09,135 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 11:06:09,135 INFO L430 AbstractCegarLoop]: === Iteration 22 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:09,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:09,136 INFO L82 PathProgramCache]: Analyzing trace with hash -31463194, now seen corresponding path program 6 times [2021-06-05 11:06:09,136 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:09,136 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [841109876] [2021-06-05 11:06:09,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:09,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:09,911 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:09,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:09,911 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [841109876] [2021-06-05 11:06:09,911 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [841109876] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:09,911 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:09,911 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:09,911 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436427293] [2021-06-05 11:06:09,911 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:09,912 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:09,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:09,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:09,912 INFO L87 Difference]: Start difference. First operand 3804 states and 7812 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:11,230 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:06:11,487 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:06:11,692 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:06:11,884 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:06:12,243 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:12,473 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:06:12,654 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:06:15,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:15,247 INFO L93 Difference]: Finished difference Result 5418 states and 11138 transitions. [2021-06-05 11:06:15,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:15,247 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:15,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:15,250 INFO L225 Difference]: With dead ends: 5418 [2021-06-05 11:06:15,251 INFO L226 Difference]: Without dead ends: 5418 [2021-06-05 11:06:15,251 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 4181.3ms TimeCoverageRelationStatistics Valid=1056, Invalid=4950, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:06:15,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5418 states. [2021-06-05 11:06:15,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5418 to 3834. [2021-06-05 11:06:15,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3834 states, 3831 states have (on average 2.0548159749412687) internal successors, (7872), 3833 states have internal predecessors, (7872), 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) [2021-06-05 11:06:15,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3834 states to 3834 states and 7872 transitions. [2021-06-05 11:06:15,284 INFO L78 Accepts]: Start accepts. Automaton has 3834 states and 7872 transitions. Word has length 88 [2021-06-05 11:06:15,284 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:15,284 INFO L482 AbstractCegarLoop]: Abstraction has 3834 states and 7872 transitions. [2021-06-05 11:06:15,285 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:15,285 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states and 7872 transitions. [2021-06-05 11:06:15,288 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:15,288 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:15,288 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:15,288 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 11:06:15,288 INFO L430 AbstractCegarLoop]: === Iteration 23 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:15,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:15,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1657846694, now seen corresponding path program 7 times [2021-06-05 11:06:15,288 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:15,288 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [259282473] [2021-06-05 11:06:15,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:15,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:16,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:16,041 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:16,041 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [259282473] [2021-06-05 11:06:16,041 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [259282473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:16,041 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:16,042 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:16,042 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [513731862] [2021-06-05 11:06:16,042 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:16,042 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:16,042 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:16,042 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:16,042 INFO L87 Difference]: Start difference. First operand 3834 states and 7872 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:17,367 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:06:17,604 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:06:17,823 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:06:18,017 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:06:18,378 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:18,604 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:06:18,787 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:06:21,333 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:21,333 INFO L93 Difference]: Finished difference Result 5463 states and 11228 transitions. [2021-06-05 11:06:21,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:21,333 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:21,334 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:21,337 INFO L225 Difference]: With dead ends: 5463 [2021-06-05 11:06:21,337 INFO L226 Difference]: Without dead ends: 5463 [2021-06-05 11:06:21,338 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1085 ImplicationChecksByTransitivity, 4175.8ms TimeCoverageRelationStatistics Valid=1056, Invalid=4950, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:06:21,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5463 states. [2021-06-05 11:06:21,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5463 to 3849. [2021-06-05 11:06:21,366 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3849 states, 3846 states have (on average 2.0546021840873636) internal successors, (7902), 3848 states have internal predecessors, (7902), 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) [2021-06-05 11:06:21,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3849 states to 3849 states and 7902 transitions. [2021-06-05 11:06:21,370 INFO L78 Accepts]: Start accepts. Automaton has 3849 states and 7902 transitions. Word has length 88 [2021-06-05 11:06:21,370 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:21,370 INFO L482 AbstractCegarLoop]: Abstraction has 3849 states and 7902 transitions. [2021-06-05 11:06:21,370 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:21,371 INFO L276 IsEmpty]: Start isEmpty. Operand 3849 states and 7902 transitions. [2021-06-05 11:06:21,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:21,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:21,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:21,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 11:06:21,374 INFO L430 AbstractCegarLoop]: === Iteration 24 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:21,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:21,374 INFO L82 PathProgramCache]: Analyzing trace with hash 1026434756, now seen corresponding path program 8 times [2021-06-05 11:06:21,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:21,374 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1384842273] [2021-06-05 11:06:21,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:21,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:22,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:22,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:22,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1384842273] [2021-06-05 11:06:22,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1384842273] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:22,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:22,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:22,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092048143] [2021-06-05 11:06:22,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:22,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:22,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:22,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:22,125 INFO L87 Difference]: Start difference. First operand 3849 states and 7902 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:23,419 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:06:23,648 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:06:23,872 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:06:24,066 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:06:24,432 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:24,655 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:06:24,840 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:06:27,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:27,404 INFO L93 Difference]: Finished difference Result 5493 states and 11288 transitions. [2021-06-05 11:06:27,406 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:27,406 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:27,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:27,410 INFO L225 Difference]: With dead ends: 5493 [2021-06-05 11:06:27,410 INFO L226 Difference]: Without dead ends: 5493 [2021-06-05 11:06:27,410 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 4214.4ms TimeCoverageRelationStatistics Valid=1055, Invalid=4951, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:06:27,415 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5493 states. [2021-06-05 11:06:27,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5493 to 3864. [2021-06-05 11:06:27,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3864 states, 3861 states have (on average 2.0543900543900544) internal successors, (7932), 3863 states have internal predecessors, (7932), 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) [2021-06-05 11:06:27,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3864 states to 3864 states and 7932 transitions. [2021-06-05 11:06:27,445 INFO L78 Accepts]: Start accepts. Automaton has 3864 states and 7932 transitions. Word has length 88 [2021-06-05 11:06:27,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:27,445 INFO L482 AbstractCegarLoop]: Abstraction has 3864 states and 7932 transitions. [2021-06-05 11:06:27,445 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:27,445 INFO L276 IsEmpty]: Start isEmpty. Operand 3864 states and 7932 transitions. [2021-06-05 11:06:27,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:27,448 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:27,448 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:27,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 11:06:27,449 INFO L430 AbstractCegarLoop]: === Iteration 25 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:27,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:27,449 INFO L82 PathProgramCache]: Analyzing trace with hash 579019494, now seen corresponding path program 9 times [2021-06-05 11:06:27,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:27,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [928378193] [2021-06-05 11:06:27,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:27,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:28,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:28,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:28,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [928378193] [2021-06-05 11:06:28,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [928378193] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:28,204 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:28,204 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:28,209 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384882908] [2021-06-05 11:06:28,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:28,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:28,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:28,210 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=1043, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:28,211 INFO L87 Difference]: Start difference. First operand 3864 states and 7932 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:29,485 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:06:29,726 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:06:29,933 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:06:30,123 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:06:30,472 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:30,699 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:06:30,889 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:06:33,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:33,311 INFO L93 Difference]: Finished difference Result 5553 states and 11408 transitions. [2021-06-05 11:06:33,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:33,311 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:33,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:33,315 INFO L225 Difference]: With dead ends: 5553 [2021-06-05 11:06:33,315 INFO L226 Difference]: Without dead ends: 5553 [2021-06-05 11:06:33,316 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1086 ImplicationChecksByTransitivity, 4175.7ms TimeCoverageRelationStatistics Valid=1055, Invalid=4951, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:06:33,321 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5553 states. [2021-06-05 11:06:33,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5553 to 3909. [2021-06-05 11:06:33,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 3906 states have (on average 2.053763440860215) internal successors, (8022), 3908 states have internal predecessors, (8022), 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) [2021-06-05 11:06:33,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 8022 transitions. [2021-06-05 11:06:33,350 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 8022 transitions. Word has length 88 [2021-06-05 11:06:33,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:33,351 INFO L482 AbstractCegarLoop]: Abstraction has 3909 states and 8022 transitions. [2021-06-05 11:06:33,351 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:33,352 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 8022 transitions. [2021-06-05 11:06:33,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:33,364 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:33,364 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:33,364 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 11:06:33,364 INFO L430 AbstractCegarLoop]: === Iteration 26 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:33,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:33,364 INFO L82 PathProgramCache]: Analyzing trace with hash 191527364, now seen corresponding path program 10 times [2021-06-05 11:06:33,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:33,365 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506405894] [2021-06-05 11:06:33,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:33,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:34,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:34,138 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:34,138 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506405894] [2021-06-05 11:06:34,138 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506405894] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:34,138 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:34,138 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:34,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [497745751] [2021-06-05 11:06:34,138 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:34,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:34,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:34,139 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1042, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:34,139 INFO L87 Difference]: Start difference. First operand 3909 states and 8022 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:35,411 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:06:35,637 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:06:35,838 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:06:36,025 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:06:36,377 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:06:36,595 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:06:36,780 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:06:39,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:39,215 INFO L93 Difference]: Finished difference Result 5313 states and 10913 transitions. [2021-06-05 11:06:39,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:39,216 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:39,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:39,219 INFO L225 Difference]: With dead ends: 5313 [2021-06-05 11:06:39,219 INFO L226 Difference]: Without dead ends: 5313 [2021-06-05 11:06:39,220 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1083 ImplicationChecksByTransitivity, 4206.5ms TimeCoverageRelationStatistics Valid=1056, Invalid=4950, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:06:39,225 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5313 states. [2021-06-05 11:06:39,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5313 to 3909. [2021-06-05 11:06:39,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3909 states, 3906 states have (on average 2.053763440860215) internal successors, (8022), 3908 states have internal predecessors, (8022), 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) [2021-06-05 11:06:39,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3909 states to 3909 states and 8022 transitions. [2021-06-05 11:06:39,254 INFO L78 Accepts]: Start accepts. Automaton has 3909 states and 8022 transitions. Word has length 88 [2021-06-05 11:06:39,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:39,254 INFO L482 AbstractCegarLoop]: Abstraction has 3909 states and 8022 transitions. [2021-06-05 11:06:39,255 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:39,255 INFO L276 IsEmpty]: Start isEmpty. Operand 3909 states and 8022 transitions. [2021-06-05 11:06:39,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:39,258 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:39,258 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:39,258 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 11:06:39,258 INFO L430 AbstractCegarLoop]: === Iteration 27 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:39,258 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:39,258 INFO L82 PathProgramCache]: Analyzing trace with hash 967086562, now seen corresponding path program 11 times [2021-06-05 11:06:39,258 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:39,258 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950185170] [2021-06-05 11:06:39,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:39,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:40,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:40,209 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:40,209 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950185170] [2021-06-05 11:06:40,209 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950185170] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:40,210 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:40,210 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:06:40,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1898322724] [2021-06-05 11:06:40,210 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:06:40,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:40,211 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:06:40,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:06:40,211 INFO L87 Difference]: Start difference. First operand 3909 states and 8022 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:06:41,397 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-06-05 11:06:41,605 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 11:06:41,851 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:06:42,045 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:06:42,255 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:06:42,633 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:06:42,865 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:06:43,064 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:06:45,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:45,707 INFO L93 Difference]: Finished difference Result 5724 states and 11770 transitions. [2021-06-05 11:06:45,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:45,707 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:45,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:45,711 INFO L225 Difference]: With dead ends: 5724 [2021-06-05 11:06:45,711 INFO L226 Difference]: Without dead ends: 5724 [2021-06-05 11:06:45,711 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4528.6ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:06:45,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5724 states. [2021-06-05 11:06:45,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5724 to 3922. [2021-06-05 11:06:45,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3922 states, 3919 states have (on average 2.053585098239347) internal successors, (8048), 3921 states have internal predecessors, (8048), 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) [2021-06-05 11:06:45,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3922 states to 3922 states and 8048 transitions. [2021-06-05 11:06:45,749 INFO L78 Accepts]: Start accepts. Automaton has 3922 states and 8048 transitions. Word has length 88 [2021-06-05 11:06:45,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:45,749 INFO L482 AbstractCegarLoop]: Abstraction has 3922 states and 8048 transitions. [2021-06-05 11:06:45,749 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:06:45,749 INFO L276 IsEmpty]: Start isEmpty. Operand 3922 states and 8048 transitions. [2021-06-05 11:06:45,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:45,752 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:45,752 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:45,752 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-06-05 11:06:45,752 INFO L430 AbstractCegarLoop]: === Iteration 28 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:45,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:45,752 INFO L82 PathProgramCache]: Analyzing trace with hash -1371055236, now seen corresponding path program 12 times [2021-06-05 11:06:45,753 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:45,753 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542585226] [2021-06-05 11:06:45,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:45,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:46,467 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:46,468 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:46,468 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542585226] [2021-06-05 11:06:46,468 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542585226] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:46,468 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:46,468 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:46,468 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638816911] [2021-06-05 11:06:46,468 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:46,468 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:46,468 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:46,469 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:46,469 INFO L87 Difference]: Start difference. First operand 3922 states and 8048 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:47,620 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:06:47,822 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:06:48,018 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:06:48,224 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:06:48,527 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:06:48,747 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:06:48,946 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:06:49,159 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:06:49,363 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:06:52,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:52,204 INFO L93 Difference]: Finished difference Result 7508 states and 15467 transitions. [2021-06-05 11:06:52,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:06:52,205 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:52,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:52,210 INFO L225 Difference]: With dead ends: 7508 [2021-06-05 11:06:52,210 INFO L226 Difference]: Without dead ends: 7508 [2021-06-05 11:06:52,210 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 4565.0ms TimeCoverageRelationStatistics Valid=1168, Invalid=5312, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:06:52,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7508 states. [2021-06-05 11:06:52,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7508 to 3942. [2021-06-05 11:06:52,247 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3942 states, 3939 states have (on average 2.053820766692054) internal successors, (8090), 3941 states have internal predecessors, (8090), 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) [2021-06-05 11:06:52,250 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3942 states to 3942 states and 8090 transitions. [2021-06-05 11:06:52,251 INFO L78 Accepts]: Start accepts. Automaton has 3942 states and 8090 transitions. Word has length 88 [2021-06-05 11:06:52,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:52,251 INFO L482 AbstractCegarLoop]: Abstraction has 3942 states and 8090 transitions. [2021-06-05 11:06:52,251 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:52,251 INFO L276 IsEmpty]: Start isEmpty. Operand 3942 states and 8090 transitions. [2021-06-05 11:06:52,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:52,254 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:52,254 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:52,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-06-05 11:06:52,254 INFO L430 AbstractCegarLoop]: === Iteration 29 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:52,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:52,254 INFO L82 PathProgramCache]: Analyzing trace with hash -2030932634, now seen corresponding path program 13 times [2021-06-05 11:06:52,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:52,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060123232] [2021-06-05 11:06:52,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:53,095 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:53,095 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:53,095 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060123232] [2021-06-05 11:06:53,095 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060123232] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:53,095 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:53,095 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:53,095 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325372873] [2021-06-05 11:06:53,095 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:53,095 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:53,096 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:53,096 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:53,096 INFO L87 Difference]: Start difference. First operand 3942 states and 8090 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:54,123 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 11:06:54,274 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:06:54,484 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:06:54,688 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:06:54,905 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:06:55,237 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:06:55,501 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:06:55,727 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:06:55,943 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:06:56,840 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:06:58,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:06:58,818 INFO L93 Difference]: Finished difference Result 6020 states and 12379 transitions. [2021-06-05 11:06:58,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:06:58,818 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:06:58,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:06:58,822 INFO L225 Difference]: With dead ends: 6020 [2021-06-05 11:06:58,822 INFO L226 Difference]: Without dead ends: 6020 [2021-06-05 11:06:58,822 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 4727.6ms TimeCoverageRelationStatistics Valid=1050, Invalid=4956, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:06:58,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6020 states. [2021-06-05 11:06:58,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6020 to 3940. [2021-06-05 11:06:58,854 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3940 states, 3937 states have (on average 2.0538481076962154) internal successors, (8086), 3939 states have internal predecessors, (8086), 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) [2021-06-05 11:06:58,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3940 states to 3940 states and 8086 transitions. [2021-06-05 11:06:58,857 INFO L78 Accepts]: Start accepts. Automaton has 3940 states and 8086 transitions. Word has length 88 [2021-06-05 11:06:58,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:06:58,857 INFO L482 AbstractCegarLoop]: Abstraction has 3940 states and 8086 transitions. [2021-06-05 11:06:58,858 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:06:58,858 INFO L276 IsEmpty]: Start isEmpty. Operand 3940 states and 8086 transitions. [2021-06-05 11:06:58,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:06:58,860 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:06:58,860 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:06:58,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-06-05 11:06:58,861 INFO L430 AbstractCegarLoop]: === Iteration 30 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:06:58,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:06:58,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1754943670, now seen corresponding path program 14 times [2021-06-05 11:06:58,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:06:58,861 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661449038] [2021-06-05 11:06:58,861 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:06:58,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:06:59,631 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:06:59,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:06:59,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661449038] [2021-06-05 11:06:59,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661449038] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:06:59,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:06:59,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:06:59,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752091571] [2021-06-05 11:06:59,632 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:06:59,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:06:59,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:06:59,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:06:59,633 INFO L87 Difference]: Start difference. First operand 3940 states and 8086 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:00,782 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:07:00,987 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:07:01,191 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:07:01,409 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:07:01,606 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:07:01,824 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:07:02,213 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:07:02,465 WARN L205 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:07:02,673 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:07:03,416 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-05 11:07:03,555 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:07:03,760 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-05 11:07:05,557 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:05,557 INFO L93 Difference]: Finished difference Result 6044 states and 12442 transitions. [2021-06-05 11:07:05,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:07:05,558 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:05,558 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:05,562 INFO L225 Difference]: With dead ends: 6044 [2021-06-05 11:07:05,562 INFO L226 Difference]: Without dead ends: 6044 [2021-06-05 11:07:05,562 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4876.3ms TimeCoverageRelationStatistics Valid=1093, Invalid=5069, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:07:05,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6044 states. [2021-06-05 11:07:05,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6044 to 3924. [2021-06-05 11:07:05,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3924 states, 3921 states have (on average 2.053557765876052) internal successors, (8052), 3923 states have internal predecessors, (8052), 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) [2021-06-05 11:07:05,601 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3924 states to 3924 states and 8052 transitions. [2021-06-05 11:07:05,602 INFO L78 Accepts]: Start accepts. Automaton has 3924 states and 8052 transitions. Word has length 88 [2021-06-05 11:07:05,602 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:05,602 INFO L482 AbstractCegarLoop]: Abstraction has 3924 states and 8052 transitions. [2021-06-05 11:07:05,602 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:05,602 INFO L276 IsEmpty]: Start isEmpty. Operand 3924 states and 8052 transitions. [2021-06-05 11:07:05,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:05,605 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:05,605 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:05,605 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-06-05 11:07:05,605 INFO L430 AbstractCegarLoop]: === Iteration 31 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:05,605 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:05,606 INFO L82 PathProgramCache]: Analyzing trace with hash -2058921166, now seen corresponding path program 15 times [2021-06-05 11:07:05,606 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:05,606 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1052539868] [2021-06-05 11:07:05,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:05,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:06,519 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:06,519 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:06,519 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1052539868] [2021-06-05 11:07:06,519 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1052539868] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:06,520 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:06,520 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:07:06,520 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351791083] [2021-06-05 11:07:06,520 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:07:06,520 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:06,520 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:07:06,520 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:07:06,520 INFO L87 Difference]: Start difference. First operand 3924 states and 8052 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:07:07,679 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-06-05 11:07:07,887 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2021-06-05 11:07:08,113 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:07:08,305 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:07:08,520 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:07:08,922 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:07:09,156 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:07:09,353 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:07:11,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:11,826 INFO L93 Difference]: Finished difference Result 6029 states and 12412 transitions. [2021-06-05 11:07:11,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:07:11,827 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:11,827 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:11,831 INFO L225 Difference]: With dead ends: 6029 [2021-06-05 11:07:11,831 INFO L226 Difference]: Without dead ends: 6029 [2021-06-05 11:07:11,831 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4510.3ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:07:11,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6029 states. [2021-06-05 11:07:11,860 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6029 to 3918. [2021-06-05 11:07:11,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3918 states, 3915 states have (on average 2.053639846743295) internal successors, (8040), 3917 states have internal predecessors, (8040), 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) [2021-06-05 11:07:11,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3918 states to 3918 states and 8040 transitions. [2021-06-05 11:07:11,867 INFO L78 Accepts]: Start accepts. Automaton has 3918 states and 8040 transitions. Word has length 88 [2021-06-05 11:07:11,867 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:11,867 INFO L482 AbstractCegarLoop]: Abstraction has 3918 states and 8040 transitions. [2021-06-05 11:07:11,867 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:07:11,867 INFO L276 IsEmpty]: Start isEmpty. Operand 3918 states and 8040 transitions. [2021-06-05 11:07:11,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:11,870 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:11,870 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:11,870 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-06-05 11:07:11,870 INFO L430 AbstractCegarLoop]: === Iteration 32 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:11,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:11,870 INFO L82 PathProgramCache]: Analyzing trace with hash -1693236198, now seen corresponding path program 16 times [2021-06-05 11:07:11,870 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:11,870 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008524296] [2021-06-05 11:07:11,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:11,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:12,632 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:12,632 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:12,632 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008524296] [2021-06-05 11:07:12,632 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008524296] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:12,632 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:12,632 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:07:12,633 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646028423] [2021-06-05 11:07:12,633 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:07:12,633 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:12,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:07:12,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:07:12,633 INFO L87 Difference]: Start difference. First operand 3918 states and 8040 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:13,828 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:07:13,998 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:07:14,205 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:07:14,412 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:07:14,730 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:07:14,947 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:07:15,144 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:07:15,370 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:07:15,640 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:07:18,405 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:18,405 INFO L93 Difference]: Finished difference Result 6475 states and 13331 transitions. [2021-06-05 11:07:18,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:07:18,406 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:18,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:18,410 INFO L225 Difference]: With dead ends: 6475 [2021-06-05 11:07:18,410 INFO L226 Difference]: Without dead ends: 6475 [2021-06-05 11:07:18,410 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 4561.4ms TimeCoverageRelationStatistics Valid=1168, Invalid=5312, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:07:18,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6475 states. [2021-06-05 11:07:18,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6475 to 3945. [2021-06-05 11:07:18,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3945 states, 3942 states have (on average 2.054033485540335) internal successors, (8097), 3944 states have internal predecessors, (8097), 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) [2021-06-05 11:07:18,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3945 states to 3945 states and 8097 transitions. [2021-06-05 11:07:18,446 INFO L78 Accepts]: Start accepts. Automaton has 3945 states and 8097 transitions. Word has length 88 [2021-06-05 11:07:18,447 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:18,447 INFO L482 AbstractCegarLoop]: Abstraction has 3945 states and 8097 transitions. [2021-06-05 11:07:18,447 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 3945 states and 8097 transitions. [2021-06-05 11:07:18,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:18,449 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:18,449 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:18,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-06-05 11:07:18,449 INFO L430 AbstractCegarLoop]: === Iteration 33 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:18,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:18,450 INFO L82 PathProgramCache]: Analyzing trace with hash -845756198, now seen corresponding path program 17 times [2021-06-05 11:07:18,450 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:18,450 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976590820] [2021-06-05 11:07:18,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:18,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:19,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:19,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:19,259 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976590820] [2021-06-05 11:07:19,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976590820] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:19,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:19,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:07:19,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188368433] [2021-06-05 11:07:19,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:07:19,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:19,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:07:19,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:07:19,261 INFO L87 Difference]: Start difference. First operand 3945 states and 8097 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:20,281 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2021-06-05 11:07:20,466 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 63 [2021-06-05 11:07:20,644 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2021-06-05 11:07:20,858 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69 [2021-06-05 11:07:21,076 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:07:21,390 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-05 11:07:21,646 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 73 [2021-06-05 11:07:21,875 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:07:22,095 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2021-06-05 11:07:24,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:24,543 INFO L93 Difference]: Finished difference Result 5753 states and 11830 transitions. [2021-06-05 11:07:24,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:07:24,544 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:24,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:24,548 INFO L225 Difference]: With dead ends: 5753 [2021-06-05 11:07:24,548 INFO L226 Difference]: Without dead ends: 5753 [2021-06-05 11:07:24,548 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 4428.2ms TimeCoverageRelationStatistics Valid=1050, Invalid=4956, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:07:24,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5753 states. [2021-06-05 11:07:24,578 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5753 to 3943. [2021-06-05 11:07:24,581 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3943 states, 3940 states have (on average 2.054060913705584) internal successors, (8093), 3942 states have internal predecessors, (8093), 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) [2021-06-05 11:07:24,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3943 states to 3943 states and 8093 transitions. [2021-06-05 11:07:24,585 INFO L78 Accepts]: Start accepts. Automaton has 3943 states and 8093 transitions. Word has length 88 [2021-06-05 11:07:24,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:24,585 INFO L482 AbstractCegarLoop]: Abstraction has 3943 states and 8093 transitions. [2021-06-05 11:07:24,585 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:24,585 INFO L276 IsEmpty]: Start isEmpty. Operand 3943 states and 8093 transitions. [2021-06-05 11:07:24,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:24,588 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:24,588 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:24,588 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-06-05 11:07:24,588 INFO L430 AbstractCegarLoop]: === Iteration 34 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:24,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:24,588 INFO L82 PathProgramCache]: Analyzing trace with hash -1501770952, now seen corresponding path program 18 times [2021-06-05 11:07:24,588 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:24,588 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1389482110] [2021-06-05 11:07:24,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:24,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:25,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:25,404 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:25,404 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1389482110] [2021-06-05 11:07:25,404 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1389482110] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:25,404 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:25,404 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:07:25,404 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [707948316] [2021-06-05 11:07:25,404 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:07:25,404 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:25,405 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:07:25,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:07:25,405 INFO L87 Difference]: Start difference. First operand 3943 states and 8093 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:26,455 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2021-06-05 11:07:26,641 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 63 [2021-06-05 11:07:26,821 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 65 [2021-06-05 11:07:27,028 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69 [2021-06-05 11:07:27,266 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:07:27,476 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-05 11:07:27,699 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:07:28,063 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 73 [2021-06-05 11:07:28,301 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2021-06-05 11:07:28,520 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 75 [2021-06-05 11:07:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:31,087 INFO L93 Difference]: Finished difference Result 5657 states and 11638 transitions. [2021-06-05 11:07:31,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:07:31,088 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:31,088 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:31,092 INFO L225 Difference]: With dead ends: 5657 [2021-06-05 11:07:31,092 INFO L226 Difference]: Without dead ends: 5657 [2021-06-05 11:07:31,092 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4641.2ms TimeCoverageRelationStatistics Valid=1093, Invalid=5069, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:07:31,097 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5657 states. [2021-06-05 11:07:31,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5657 to 3927. [2021-06-05 11:07:31,123 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3927 states, 3924 states have (on average 2.0537716615698267) internal successors, (8059), 3926 states have internal predecessors, (8059), 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) [2021-06-05 11:07:31,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3927 states to 3927 states and 8059 transitions. [2021-06-05 11:07:31,126 INFO L78 Accepts]: Start accepts. Automaton has 3927 states and 8059 transitions. Word has length 88 [2021-06-05 11:07:31,127 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:31,127 INFO L482 AbstractCegarLoop]: Abstraction has 3927 states and 8059 transitions. [2021-06-05 11:07:31,127 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:31,127 INFO L276 IsEmpty]: Start isEmpty. Operand 3927 states and 8059 transitions. [2021-06-05 11:07:31,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:31,129 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:31,129 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:31,129 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-06-05 11:07:31,129 INFO L430 AbstractCegarLoop]: === Iteration 35 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:31,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:31,129 INFO L82 PathProgramCache]: Analyzing trace with hash -329083110, now seen corresponding path program 19 times [2021-06-05 11:07:31,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:31,129 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414657250] [2021-06-05 11:07:31,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:31,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:31,990 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:31,990 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414657250] [2021-06-05 11:07:31,990 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414657250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:31,990 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:31,991 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:07:31,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334199457] [2021-06-05 11:07:31,991 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:07:31,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:31,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:07:31,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:07:31,991 INFO L87 Difference]: Start difference. First operand 3927 states and 8059 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:07:33,170 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:07:33,342 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:07:33,553 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2021-06-05 11:07:33,829 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:07:34,030 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:07:34,215 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:07:34,411 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:07:34,617 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 77 [2021-06-05 11:07:34,912 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2021-06-05 11:07:35,198 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2021-06-05 11:07:38,209 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:38,209 INFO L93 Difference]: Finished difference Result 6396 states and 13147 transitions. [2021-06-05 11:07:38,209 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-05 11:07:38,209 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:38,209 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:38,214 INFO L225 Difference]: With dead ends: 6396 [2021-06-05 11:07:38,214 INFO L226 Difference]: Without dead ends: 6396 [2021-06-05 11:07:38,215 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1276 ImplicationChecksByTransitivity, 5245.8ms TimeCoverageRelationStatistics Valid=1305, Invalid=5835, Unknown=0, NotChecked=0, Total=7140 [2021-06-05 11:07:38,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6396 states. [2021-06-05 11:07:38,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6396 to 3954. [2021-06-05 11:07:38,250 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:07:38,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:07:38,254 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:07:38,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:38,254 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:07:38,254 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:07:38,254 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:07:38,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:38,256 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:38,256 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:38,256 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-06-05 11:07:38,257 INFO L430 AbstractCegarLoop]: === Iteration 36 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:38,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:38,257 INFO L82 PathProgramCache]: Analyzing trace with hash 1419782020, now seen corresponding path program 20 times [2021-06-05 11:07:38,257 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:38,257 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [746039527] [2021-06-05 11:07:38,257 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:38,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:39,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:39,120 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:39,120 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [746039527] [2021-06-05 11:07:39,121 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [746039527] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:39,121 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:39,121 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:07:39,121 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636267219] [2021-06-05 11:07:39,121 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:07:39,121 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:39,121 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:07:39,121 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:07:39,122 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:07:40,350 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:07:40,531 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:07:40,728 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2021-06-05 11:07:41,022 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:07:41,248 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:07:41,464 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 76 [2021-06-05 11:07:41,666 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:07:41,914 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 129 DAG size of output: 78 [2021-06-05 11:07:42,185 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:07:45,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:45,033 INFO L93 Difference]: Finished difference Result 6314 states and 12976 transitions. [2021-06-05 11:07:45,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:07:45,034 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:45,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:45,038 INFO L225 Difference]: With dead ends: 6314 [2021-06-05 11:07:45,038 INFO L226 Difference]: Without dead ends: 6314 [2021-06-05 11:07:45,038 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1155 ImplicationChecksByTransitivity, 4775.1ms TimeCoverageRelationStatistics Valid=1177, Invalid=5465, Unknown=0, NotChecked=0, Total=6642 [2021-06-05 11:07:45,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6314 states. [2021-06-05 11:07:45,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6314 to 3956. [2021-06-05 11:07:45,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3953 states have (on average 2.05363015431318) internal successors, (8118), 3955 states have internal predecessors, (8118), 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) [2021-06-05 11:07:45,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 8118 transitions. [2021-06-05 11:07:45,075 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 8118 transitions. Word has length 88 [2021-06-05 11:07:45,075 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:45,075 INFO L482 AbstractCegarLoop]: Abstraction has 3956 states and 8118 transitions. [2021-06-05 11:07:45,075 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:07:45,075 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 8118 transitions. [2021-06-05 11:07:45,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:45,077 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:45,077 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:45,077 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-06-05 11:07:45,078 INFO L430 AbstractCegarLoop]: === Iteration 37 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:45,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:45,078 INFO L82 PathProgramCache]: Analyzing trace with hash -2027705276, now seen corresponding path program 21 times [2021-06-05 11:07:45,078 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:45,078 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54119530] [2021-06-05 11:07:45,078 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:45,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:45,848 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:45,848 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:45,848 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54119530] [2021-06-05 11:07:45,848 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54119530] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:45,848 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:45,848 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:07:45,849 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328437843] [2021-06-05 11:07:45,849 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:07:45,849 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:45,849 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:07:45,849 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:07:45,849 INFO L87 Difference]: Start difference. First operand 3956 states and 8118 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:46,909 WARN L205 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 11:07:47,080 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:07:47,257 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:07:47,451 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 70 [2021-06-05 11:07:47,719 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:07:47,937 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:07:48,175 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:07:48,416 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-06-05 11:07:48,613 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:07:51,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:51,042 INFO L93 Difference]: Finished difference Result 5481 states and 11253 transitions. [2021-06-05 11:07:51,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:07:51,042 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:51,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:51,046 INFO L225 Difference]: With dead ends: 5481 [2021-06-05 11:07:51,046 INFO L226 Difference]: Without dead ends: 5481 [2021-06-05 11:07:51,046 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1042 ImplicationChecksByTransitivity, 4338.0ms TimeCoverageRelationStatistics Valid=1046, Invalid=4960, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:07:51,052 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5481 states. [2021-06-05 11:07:51,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5481 to 3954. [2021-06-05 11:07:51,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:07:51,079 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:07:51,079 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:07:51,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:51,079 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:07:51,079 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:51,079 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:07:51,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:51,081 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:51,081 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:51,082 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-06-05 11:07:51,082 INFO L430 AbstractCegarLoop]: === Iteration 38 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:51,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:51,082 INFO L82 PathProgramCache]: Analyzing trace with hash -1222908780, now seen corresponding path program 22 times [2021-06-05 11:07:51,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:51,082 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879765818] [2021-06-05 11:07:51,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:51,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:51,816 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:51,816 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:51,816 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879765818] [2021-06-05 11:07:51,816 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [879765818] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:51,816 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:51,817 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:07:51,817 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755354327] [2021-06-05 11:07:51,817 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:07:51,817 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:51,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:07:51,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:07:51,817 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:52,950 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:07:53,130 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:07:53,328 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:07:53,540 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:07:53,857 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:07:54,080 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:07:54,271 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:07:54,496 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:07:54,762 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:07:57,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:07:57,420 INFO L93 Difference]: Finished difference Result 6552 states and 13486 transitions. [2021-06-05 11:07:57,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:07:57,420 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:07:57,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:07:57,425 INFO L225 Difference]: With dead ends: 6552 [2021-06-05 11:07:57,425 INFO L226 Difference]: Without dead ends: 6552 [2021-06-05 11:07:57,425 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1128 ImplicationChecksByTransitivity, 4580.9ms TimeCoverageRelationStatistics Valid=1168, Invalid=5312, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:07:57,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6552 states. [2021-06-05 11:07:57,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6552 to 3974. [2021-06-05 11:07:57,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3974 states, 3971 states have (on average 2.0538907076303197) internal successors, (8156), 3973 states have internal predecessors, (8156), 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) [2021-06-05 11:07:57,462 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3974 states to 3974 states and 8156 transitions. [2021-06-05 11:07:57,462 INFO L78 Accepts]: Start accepts. Automaton has 3974 states and 8156 transitions. Word has length 88 [2021-06-05 11:07:57,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:07:57,462 INFO L482 AbstractCegarLoop]: Abstraction has 3974 states and 8156 transitions. [2021-06-05 11:07:57,462 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:57,462 INFO L276 IsEmpty]: Start isEmpty. Operand 3974 states and 8156 transitions. [2021-06-05 11:07:57,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:07:57,464 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:07:57,464 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:07:57,464 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-06-05 11:07:57,464 INFO L430 AbstractCegarLoop]: === Iteration 39 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:07:57,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:07:57,465 INFO L82 PathProgramCache]: Analyzing trace with hash -375428780, now seen corresponding path program 23 times [2021-06-05 11:07:57,465 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:07:57,465 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432514782] [2021-06-05 11:07:57,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:07:57,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:07:58,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:07:58,254 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:07:58,254 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432514782] [2021-06-05 11:07:58,254 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432514782] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:07:58,254 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:07:58,254 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:07:58,254 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680182076] [2021-06-05 11:07:58,255 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:07:58,255 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:07:58,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:07:58,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:07:58,255 INFO L87 Difference]: Start difference. First operand 3974 states and 8156 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:07:59,317 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2021-06-05 11:07:59,514 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 63 [2021-06-05 11:07:59,714 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 67 [2021-06-05 11:07:59,923 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69 [2021-06-05 11:08:00,151 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:08:00,510 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 71 [2021-06-05 11:08:00,769 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 73 [2021-06-05 11:08:01,003 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:08:01,220 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2021-06-05 11:08:03,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:03,891 INFO L93 Difference]: Finished difference Result 5830 states and 11985 transitions. [2021-06-05 11:08:03,891 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:08:03,891 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:03,891 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:03,895 INFO L225 Difference]: With dead ends: 5830 [2021-06-05 11:08:03,895 INFO L226 Difference]: Without dead ends: 5830 [2021-06-05 11:08:03,896 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 4436.9ms TimeCoverageRelationStatistics Valid=1050, Invalid=4956, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:08:03,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5830 states. [2021-06-05 11:08:03,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5830 to 3972. [2021-06-05 11:08:03,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3972 states, 3969 states have (on average 2.053917863441673) internal successors, (8152), 3971 states have internal predecessors, (8152), 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) [2021-06-05 11:08:03,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3972 states to 3972 states and 8152 transitions. [2021-06-05 11:08:03,931 INFO L78 Accepts]: Start accepts. Automaton has 3972 states and 8152 transitions. Word has length 88 [2021-06-05 11:08:03,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:03,931 INFO L482 AbstractCegarLoop]: Abstraction has 3972 states and 8152 transitions. [2021-06-05 11:08:03,931 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:03,931 INFO L276 IsEmpty]: Start isEmpty. Operand 3972 states and 8152 transitions. [2021-06-05 11:08:03,933 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:03,933 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:03,933 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:03,933 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-06-05 11:08:03,933 INFO L430 AbstractCegarLoop]: === Iteration 40 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:03,933 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:03,934 INFO L82 PathProgramCache]: Analyzing trace with hash -1031443534, now seen corresponding path program 24 times [2021-06-05 11:08:03,934 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:03,934 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [969212048] [2021-06-05 11:08:03,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:04,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:04,749 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:04,749 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [969212048] [2021-06-05 11:08:04,749 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [969212048] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:04,749 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:04,749 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:08:04,749 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [194567367] [2021-06-05 11:08:04,749 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:08:04,749 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:04,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:08:04,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:08:04,750 INFO L87 Difference]: Start difference. First operand 3972 states and 8152 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:05,846 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 59 [2021-06-05 11:08:06,034 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 63 [2021-06-05 11:08:06,236 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 67 [2021-06-05 11:08:06,452 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 69 [2021-06-05 11:08:06,681 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:08:06,909 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 71 [2021-06-05 11:08:07,132 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:08:07,536 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 73 [2021-06-05 11:08:07,776 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 126 DAG size of output: 77 [2021-06-05 11:08:07,984 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 75 [2021-06-05 11:08:10,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:10,607 INFO L93 Difference]: Finished difference Result 5869 states and 12078 transitions. [2021-06-05 11:08:10,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:08:10,607 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:10,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:10,611 INFO L225 Difference]: With dead ends: 5869 [2021-06-05 11:08:10,611 INFO L226 Difference]: Without dead ends: 5869 [2021-06-05 11:08:10,612 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4706.7ms TimeCoverageRelationStatistics Valid=1093, Invalid=5069, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:08:10,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5869 states. [2021-06-05 11:08:10,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5869 to 3956. [2021-06-05 11:08:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3953 states have (on average 2.05363015431318) internal successors, (8118), 3955 states have internal predecessors, (8118), 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) [2021-06-05 11:08:10,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 8118 transitions. [2021-06-05 11:08:10,654 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 8118 transitions. Word has length 88 [2021-06-05 11:08:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:10,654 INFO L482 AbstractCegarLoop]: Abstraction has 3956 states and 8118 transitions. [2021-06-05 11:08:10,654 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:10,654 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 8118 transitions. [2021-06-05 11:08:10,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:10,656 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:10,656 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:10,656 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-06-05 11:08:10,656 INFO L430 AbstractCegarLoop]: === Iteration 41 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:10,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:10,657 INFO L82 PathProgramCache]: Analyzing trace with hash -1780421262, now seen corresponding path program 25 times [2021-06-05 11:08:10,657 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:10,657 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1738792655] [2021-06-05 11:08:10,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:10,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:11,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:11,548 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:11,548 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1738792655] [2021-06-05 11:08:11,548 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1738792655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:11,548 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:11,548 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:08:11,548 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547934381] [2021-06-05 11:08:11,548 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:08:11,548 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:11,548 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:08:11,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:08:11,549 INFO L87 Difference]: Start difference. First operand 3956 states and 8118 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:12,768 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:08:12,961 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:08:13,212 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:08:13,404 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:08:13,623 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:08:13,991 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2021-06-05 11:08:14,225 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:08:14,423 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:08:17,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:17,090 INFO L93 Difference]: Finished difference Result 5701 states and 11725 transitions. [2021-06-05 11:08:17,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:08:17,091 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:17,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:17,094 INFO L225 Difference]: With dead ends: 5701 [2021-06-05 11:08:17,094 INFO L226 Difference]: Without dead ends: 5701 [2021-06-05 11:08:17,094 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4494.5ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:08:17,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5701 states. [2021-06-05 11:08:17,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5701 to 3954. [2021-06-05 11:08:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:08:17,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:08:17,128 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:08:17,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:17,128 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:08:17,128 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:17,128 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:08:17,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:17,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:17,130 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:17,130 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-06-05 11:08:17,130 INFO L430 AbstractCegarLoop]: === Iteration 42 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:17,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:17,131 INFO L82 PathProgramCache]: Analyzing trace with hash -1308460446, now seen corresponding path program 26 times [2021-06-05 11:08:17,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:17,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1362158914] [2021-06-05 11:08:17,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:17,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:18,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:18,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:18,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1362158914] [2021-06-05 11:08:18,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1362158914] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:18,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:18,010 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:08:18,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566524318] [2021-06-05 11:08:18,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:08:18,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:18,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:08:18,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:08:18,010 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:19,268 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:08:19,469 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:08:19,725 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:08:19,936 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:08:20,147 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:08:20,558 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:08:20,785 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:08:20,982 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:08:23,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:23,691 INFO L93 Difference]: Finished difference Result 6168 states and 12691 transitions. [2021-06-05 11:08:23,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:08:23,691 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:23,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:23,695 INFO L225 Difference]: With dead ends: 6168 [2021-06-05 11:08:23,695 INFO L226 Difference]: Without dead ends: 6168 [2021-06-05 11:08:23,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4459.2ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:08:23,701 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2021-06-05 11:08:23,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 3962. [2021-06-05 11:08:23,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3959 states have (on average 2.0535488759787826) internal successors, (8130), 3961 states have internal predecessors, (8130), 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) [2021-06-05 11:08:23,731 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 8130 transitions. [2021-06-05 11:08:23,731 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 8130 transitions. Word has length 88 [2021-06-05 11:08:23,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:23,731 INFO L482 AbstractCegarLoop]: Abstraction has 3962 states and 8130 transitions. [2021-06-05 11:08:23,731 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:23,731 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 8130 transitions. [2021-06-05 11:08:23,733 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:23,733 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:23,733 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:23,733 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-06-05 11:08:23,734 INFO L430 AbstractCegarLoop]: === Iteration 43 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:23,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:23,734 INFO L82 PathProgramCache]: Analyzing trace with hash 648365052, now seen corresponding path program 27 times [2021-06-05 11:08:23,734 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:23,734 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [136282262] [2021-06-05 11:08:23,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:23,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:24,440 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:24,440 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:24,440 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [136282262] [2021-06-05 11:08:24,440 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [136282262] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:24,440 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:24,440 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:08:24,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39975473] [2021-06-05 11:08:24,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:08:24,441 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:24,441 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:08:24,441 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:08:24,441 INFO L87 Difference]: Start difference. First operand 3962 states and 8130 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:25,616 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:08:25,824 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:08:26,031 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:08:26,256 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:08:26,616 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:08:26,842 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:08:27,032 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:08:27,249 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:08:27,452 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:08:30,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:30,401 INFO L93 Difference]: Finished difference Result 7632 states and 15716 transitions. [2021-06-05 11:08:30,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:08:30,402 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:30,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:30,407 INFO L225 Difference]: With dead ends: 7632 [2021-06-05 11:08:30,407 INFO L226 Difference]: Without dead ends: 7632 [2021-06-05 11:08:30,407 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 4539.8ms TimeCoverageRelationStatistics Valid=1168, Invalid=5312, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:08:30,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7632 states. [2021-06-05 11:08:30,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7632 to 3982. [2021-06-05 11:08:30,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3979 states have (on average 2.053782357376225) internal successors, (8172), 3981 states have internal predecessors, (8172), 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) [2021-06-05 11:08:30,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 8172 transitions. [2021-06-05 11:08:30,446 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 8172 transitions. Word has length 88 [2021-06-05 11:08:30,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:30,446 INFO L482 AbstractCegarLoop]: Abstraction has 3982 states and 8172 transitions. [2021-06-05 11:08:30,446 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:30,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 8172 transitions. [2021-06-05 11:08:30,448 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:30,448 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:30,449 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:30,449 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-06-05 11:08:30,449 INFO L430 AbstractCegarLoop]: === Iteration 44 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:30,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:30,449 INFO L82 PathProgramCache]: Analyzing trace with hash -11512346, now seen corresponding path program 28 times [2021-06-05 11:08:30,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:30,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667365633] [2021-06-05 11:08:30,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:30,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:31,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:31,232 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:31,232 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667365633] [2021-06-05 11:08:31,232 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667365633] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:31,232 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:31,232 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:08:31,232 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842422609] [2021-06-05 11:08:31,233 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:08:31,233 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:31,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:08:31,233 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:08:31,233 INFO L87 Difference]: Start difference. First operand 3982 states and 8172 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:32,358 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:08:32,570 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:08:32,767 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:08:32,989 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:08:33,333 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:08:33,587 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:08:33,812 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:08:34,024 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:08:34,918 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:08:35,120 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-05 11:08:36,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:36,871 INFO L93 Difference]: Finished difference Result 6144 states and 12628 transitions. [2021-06-05 11:08:36,871 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:08:36,871 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:36,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:36,876 INFO L225 Difference]: With dead ends: 6144 [2021-06-05 11:08:36,876 INFO L226 Difference]: Without dead ends: 6144 [2021-06-05 11:08:36,876 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 4638.5ms TimeCoverageRelationStatistics Valid=1050, Invalid=4956, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:08:36,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6144 states. [2021-06-05 11:08:36,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6144 to 3980. [2021-06-05 11:08:36,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3977 states have (on average 2.053809404073422) internal successors, (8168), 3979 states have internal predecessors, (8168), 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) [2021-06-05 11:08:36,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 8168 transitions. [2021-06-05 11:08:36,913 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 8168 transitions. Word has length 88 [2021-06-05 11:08:36,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:36,913 INFO L482 AbstractCegarLoop]: Abstraction has 3980 states and 8168 transitions. [2021-06-05 11:08:36,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:36,913 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 8168 transitions. [2021-06-05 11:08:36,915 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:36,915 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:36,915 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:36,915 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-06-05 11:08:36,915 INFO L430 AbstractCegarLoop]: === Iteration 45 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:36,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:36,916 INFO L82 PathProgramCache]: Analyzing trace with hash 264476618, now seen corresponding path program 29 times [2021-06-05 11:08:36,916 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:36,916 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [52654236] [2021-06-05 11:08:36,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:36,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:37,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:37,700 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:37,700 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [52654236] [2021-06-05 11:08:37,700 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [52654236] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:37,700 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:37,700 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:08:37,700 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944112541] [2021-06-05 11:08:37,700 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:08:37,700 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:37,701 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:08:37,701 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:08:37,701 INFO L87 Difference]: Start difference. First operand 3980 states and 8168 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:38,867 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:08:39,079 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:08:39,280 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:08:39,502 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:08:39,699 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:08:39,917 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:08:40,318 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:08:40,569 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:08:40,777 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:08:41,667 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:08:43,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:43,592 INFO L93 Difference]: Finished difference Result 6168 states and 12691 transitions. [2021-06-05 11:08:43,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:08:43,593 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:43,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:43,607 INFO L225 Difference]: With dead ends: 6168 [2021-06-05 11:08:43,607 INFO L226 Difference]: Without dead ends: 6168 [2021-06-05 11:08:43,608 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4882.7ms TimeCoverageRelationStatistics Valid=1093, Invalid=5069, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:08:43,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6168 states. [2021-06-05 11:08:43,637 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6168 to 3964. [2021-06-05 11:08:43,639 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3961 states have (on average 2.053521837919717) internal successors, (8134), 3963 states have internal predecessors, (8134), 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) [2021-06-05 11:08:43,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 8134 transitions. [2021-06-05 11:08:43,643 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 8134 transitions. Word has length 88 [2021-06-05 11:08:43,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:43,643 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 8134 transitions. [2021-06-05 11:08:43,643 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:08:43,643 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 8134 transitions. [2021-06-05 11:08:43,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:43,645 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:43,645 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:43,646 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-06-05 11:08:43,646 INFO L430 AbstractCegarLoop]: === Iteration 46 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:43,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:43,646 INFO L82 PathProgramCache]: Analyzing trace with hash -39500878, now seen corresponding path program 30 times [2021-06-05 11:08:43,646 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:43,646 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1097947465] [2021-06-05 11:08:43,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:44,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:44,540 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:44,540 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1097947465] [2021-06-05 11:08:44,540 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1097947465] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:44,540 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:44,540 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:08:44,540 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833257292] [2021-06-05 11:08:44,540 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:08:44,540 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:44,541 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:08:44,541 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:08:44,541 INFO L87 Difference]: Start difference. First operand 3964 states and 8134 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:45,729 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:08:45,950 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:08:46,197 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:08:46,406 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:08:46,638 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:08:47,058 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:08:47,297 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:08:47,497 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:08:50,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:50,223 INFO L93 Difference]: Finished difference Result 6303 states and 12976 transitions. [2021-06-05 11:08:50,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:08:50,224 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:50,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:50,228 INFO L225 Difference]: With dead ends: 6303 [2021-06-05 11:08:50,228 INFO L226 Difference]: Without dead ends: 6303 [2021-06-05 11:08:50,228 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4499.4ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:08:50,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6303 states. [2021-06-05 11:08:50,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6303 to 3958. [2021-06-05 11:08:50,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3958 states, 3955 states have (on average 2.0536030341340075) internal successors, (8122), 3957 states have internal predecessors, (8122), 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) [2021-06-05 11:08:50,262 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3958 states to 3958 states and 8122 transitions. [2021-06-05 11:08:50,262 INFO L78 Accepts]: Start accepts. Automaton has 3958 states and 8122 transitions. Word has length 88 [2021-06-05 11:08:50,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:50,262 INFO L482 AbstractCegarLoop]: Abstraction has 3958 states and 8122 transitions. [2021-06-05 11:08:50,263 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:50,263 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 8122 transitions. [2021-06-05 11:08:50,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:50,265 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:50,265 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:50,265 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-06-05 11:08:50,265 INFO L430 AbstractCegarLoop]: === Iteration 47 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:50,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:50,265 INFO L82 PathProgramCache]: Analyzing trace with hash 660702916, now seen corresponding path program 31 times [2021-06-05 11:08:50,265 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:50,265 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006163077] [2021-06-05 11:08:50,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:50,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:51,161 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:51,162 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:51,162 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006163077] [2021-06-05 11:08:51,162 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006163077] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:51,162 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:51,162 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:08:51,162 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492588670] [2021-06-05 11:08:51,162 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:08:51,162 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:51,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:08:51,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:08:51,163 INFO L87 Difference]: Start difference. First operand 3958 states and 8122 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:52,556 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:08:52,801 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:08:52,999 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:08:53,213 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:08:53,585 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:08:53,821 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:08:54,026 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:08:56,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:08:56,638 INFO L93 Difference]: Finished difference Result 5814 states and 11951 transitions. [2021-06-05 11:08:56,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:08:56,638 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:08:56,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:08:56,642 INFO L225 Difference]: With dead ends: 5814 [2021-06-05 11:08:56,642 INFO L226 Difference]: Without dead ends: 5814 [2021-06-05 11:08:56,642 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4473.5ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:08:56,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5814 states. [2021-06-05 11:08:56,669 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5814 to 3954. [2021-06-05 11:08:56,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:08:56,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:08:56,675 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:08:56,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:08:56,675 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:08:56,675 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:56,675 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:08:56,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:08:56,677 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:08:56,677 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:08:56,677 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-06-05 11:08:56,677 INFO L430 AbstractCegarLoop]: === Iteration 48 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:08:56,678 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:08:56,678 INFO L82 PathProgramCache]: Analyzing trace with hash 1709417242, now seen corresponding path program 32 times [2021-06-05 11:08:56,678 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:08:56,678 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035304194] [2021-06-05 11:08:56,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:08:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:08:57,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:08:57,552 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:08:57,553 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035304194] [2021-06-05 11:08:57,553 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1035304194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:08:57,553 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:08:57,553 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:08:57,553 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270378763] [2021-06-05 11:08:57,553 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:08:57,553 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:08:57,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:08:57,553 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:08:57,554 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:08:58,771 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:08:58,976 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:08:59,241 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:08:59,457 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:08:59,673 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:09:00,096 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:09:00,352 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:09:00,574 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:09:03,269 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:03,269 INFO L93 Difference]: Finished difference Result 6219 states and 12793 transitions. [2021-06-05 11:09:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:09:03,270 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:03,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:03,273 INFO L225 Difference]: With dead ends: 6219 [2021-06-05 11:09:03,274 INFO L226 Difference]: Without dead ends: 6219 [2021-06-05 11:09:03,274 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4569.8ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:09:03,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6219 states. [2021-06-05 11:09:03,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6219 to 3964. [2021-06-05 11:09:03,306 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3961 states have (on average 2.053521837919717) internal successors, (8134), 3963 states have internal predecessors, (8134), 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) [2021-06-05 11:09:03,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 8134 transitions. [2021-06-05 11:09:03,310 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 8134 transitions. Word has length 88 [2021-06-05 11:09:03,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:03,310 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 8134 transitions. [2021-06-05 11:09:03,310 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:03,310 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 8134 transitions. [2021-06-05 11:09:03,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:03,312 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:03,313 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:03,313 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-06-05 11:09:03,313 INFO L430 AbstractCegarLoop]: === Iteration 49 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:03,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:03,313 INFO L82 PathProgramCache]: Analyzing trace with hash -628724556, now seen corresponding path program 33 times [2021-06-05 11:09:03,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:03,313 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [168124354] [2021-06-05 11:09:03,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:03,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:04,013 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:04,013 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:04,013 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [168124354] [2021-06-05 11:09:04,013 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [168124354] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:04,014 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:04,014 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:09:04,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032107827] [2021-06-05 11:09:04,014 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:09:04,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:04,014 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:09:04,014 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:09:04,014 INFO L87 Difference]: Start difference. First operand 3964 states and 8134 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:05,162 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:09:05,369 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:09:05,581 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:09:05,820 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:09:06,146 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:09:06,366 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:09:06,554 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:09:06,769 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:09:06,967 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:09:09,711 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:09,712 INFO L93 Difference]: Finished difference Result 7683 states and 15818 transitions. [2021-06-05 11:09:09,712 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:09:09,712 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:09,712 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:09,718 INFO L225 Difference]: With dead ends: 7683 [2021-06-05 11:09:09,718 INFO L226 Difference]: Without dead ends: 7683 [2021-06-05 11:09:09,718 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 4608.7ms TimeCoverageRelationStatistics Valid=1168, Invalid=5312, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:09:09,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7683 states. [2021-06-05 11:09:09,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7683 to 3984. [2021-06-05 11:09:09,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 3981 states have (on average 2.0537553378548106) internal successors, (8176), 3983 states have internal predecessors, (8176), 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) [2021-06-05 11:09:09,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 8176 transitions. [2021-06-05 11:09:09,757 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 8176 transitions. Word has length 88 [2021-06-05 11:09:09,757 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:09,757 INFO L482 AbstractCegarLoop]: Abstraction has 3984 states and 8176 transitions. [2021-06-05 11:09:09,758 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:09,758 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 8176 transitions. [2021-06-05 11:09:09,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:09,760 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:09,760 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:09,760 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-06-05 11:09:09,760 INFO L430 AbstractCegarLoop]: === Iteration 50 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:09,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:09,760 INFO L82 PathProgramCache]: Analyzing trace with hash -1288601954, now seen corresponding path program 34 times [2021-06-05 11:09:09,760 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:09,760 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673007206] [2021-06-05 11:09:09,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:09,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:10,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:10,562 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:10,562 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673007206] [2021-06-05 11:09:10,562 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1673007206] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:10,562 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:10,562 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:09:10,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687162455] [2021-06-05 11:09:10,562 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:09:10,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:10,563 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:09:10,563 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:09:10,563 INFO L87 Difference]: Start difference. First operand 3984 states and 8176 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:11,725 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:09:11,935 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:09:12,144 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:09:12,369 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:09:12,730 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:09:12,978 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:09:13,204 WARN L205 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:09:13,418 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:09:14,366 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:09:15,326 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 65 [2021-06-05 11:09:16,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:16,424 INFO L93 Difference]: Finished difference Result 6195 states and 12730 transitions. [2021-06-05 11:09:16,424 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:09:16,424 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:16,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:16,428 INFO L225 Difference]: With dead ends: 6195 [2021-06-05 11:09:16,428 INFO L226 Difference]: Without dead ends: 6195 [2021-06-05 11:09:16,429 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 4672.8ms TimeCoverageRelationStatistics Valid=1050, Invalid=4956, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:09:16,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6195 states. [2021-06-05 11:09:16,459 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6195 to 3982. [2021-06-05 11:09:16,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3979 states have (on average 2.053782357376225) internal successors, (8172), 3981 states have internal predecessors, (8172), 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) [2021-06-05 11:09:16,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 8172 transitions. [2021-06-05 11:09:16,466 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 8172 transitions. Word has length 88 [2021-06-05 11:09:16,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:16,466 INFO L482 AbstractCegarLoop]: Abstraction has 3982 states and 8172 transitions. [2021-06-05 11:09:16,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:16,466 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 8172 transitions. [2021-06-05 11:09:16,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:16,468 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:16,468 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:16,468 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-06-05 11:09:16,468 INFO L430 AbstractCegarLoop]: === Iteration 51 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:16,468 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:16,468 INFO L82 PathProgramCache]: Analyzing trace with hash -1012612990, now seen corresponding path program 35 times [2021-06-05 11:09:16,468 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:16,468 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553322398] [2021-06-05 11:09:16,468 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:16,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:17,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:17,256 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:17,256 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553322398] [2021-06-05 11:09:17,256 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553322398] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:17,256 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:17,256 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:09:17,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [592479160] [2021-06-05 11:09:17,257 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:09:17,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:17,257 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:09:17,257 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:09:17,257 INFO L87 Difference]: Start difference. First operand 3982 states and 8172 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:18,423 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:09:18,644 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:09:18,847 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:09:19,075 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:09:19,273 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:09:19,488 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:09:19,896 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:09:20,156 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:09:20,364 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:09:21,251 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:09:23,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:23,227 INFO L93 Difference]: Finished difference Result 6219 states and 12793 transitions. [2021-06-05 11:09:23,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:09:23,228 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:23,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:23,232 INFO L225 Difference]: With dead ends: 6219 [2021-06-05 11:09:23,232 INFO L226 Difference]: Without dead ends: 6219 [2021-06-05 11:09:23,232 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4893.7ms TimeCoverageRelationStatistics Valid=1093, Invalid=5069, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:09:23,238 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6219 states. [2021-06-05 11:09:23,261 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6219 to 3966. [2021-06-05 11:09:23,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3963 states have (on average 2.053494827151148) internal successors, (8138), 3965 states have internal predecessors, (8138), 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) [2021-06-05 11:09:23,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 8138 transitions. [2021-06-05 11:09:23,267 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 8138 transitions. Word has length 88 [2021-06-05 11:09:23,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:23,267 INFO L482 AbstractCegarLoop]: Abstraction has 3966 states and 8138 transitions. [2021-06-05 11:09:23,267 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:23,267 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 8138 transitions. [2021-06-05 11:09:23,269 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:23,269 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:23,269 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:23,269 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-06-05 11:09:23,269 INFO L430 AbstractCegarLoop]: === Iteration 52 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:23,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:23,270 INFO L82 PathProgramCache]: Analyzing trace with hash -1316590486, now seen corresponding path program 36 times [2021-06-05 11:09:23,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:23,270 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666132558] [2021-06-05 11:09:23,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:23,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:24,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:24,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:24,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666132558] [2021-06-05 11:09:24,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [666132558] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:24,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:24,131 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:09:24,131 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1539161080] [2021-06-05 11:09:24,131 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:09:24,131 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:24,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:09:24,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:09:24,131 INFO L87 Difference]: Start difference. First operand 3966 states and 8138 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:25,301 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:09:25,510 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:09:25,751 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:09:25,952 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:09:26,180 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:09:26,565 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:09:26,799 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:09:26,997 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:09:29,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:29,553 INFO L93 Difference]: Finished difference Result 6354 states and 13078 transitions. [2021-06-05 11:09:29,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:09:29,554 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:29,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:29,557 INFO L225 Difference]: With dead ends: 6354 [2021-06-05 11:09:29,557 INFO L226 Difference]: Without dead ends: 6354 [2021-06-05 11:09:29,558 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4491.5ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:09:29,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6354 states. [2021-06-05 11:09:29,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6354 to 3960. [2021-06-05 11:09:29,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 3957 states have (on average 2.0535759413697243) internal successors, (8126), 3959 states have internal predecessors, (8126), 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) [2021-06-05 11:09:29,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 8126 transitions. [2021-06-05 11:09:29,592 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 8126 transitions. Word has length 88 [2021-06-05 11:09:29,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:29,593 INFO L482 AbstractCegarLoop]: Abstraction has 3960 states and 8126 transitions. [2021-06-05 11:09:29,593 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:29,593 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 8126 transitions. [2021-06-05 11:09:29,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:29,595 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:29,595 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:29,595 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-06-05 11:09:29,595 INFO L430 AbstractCegarLoop]: === Iteration 53 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:29,595 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:29,595 INFO L82 PathProgramCache]: Analyzing trace with hash -616386692, now seen corresponding path program 37 times [2021-06-05 11:09:29,595 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:29,595 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1638161860] [2021-06-05 11:09:29,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:29,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:30,448 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:30,448 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:30,448 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1638161860] [2021-06-05 11:09:30,448 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1638161860] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:30,448 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:30,448 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:09:30,449 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [730104314] [2021-06-05 11:09:30,449 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:09:30,449 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:30,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:09:30,449 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1108, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:09:30,449 INFO L87 Difference]: Start difference. First operand 3960 states and 8126 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:31,823 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:09:32,078 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:09:32,281 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:09:32,493 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:09:32,888 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:09:33,126 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:09:33,328 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:09:36,013 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:36,013 INFO L93 Difference]: Finished difference Result 6279 states and 12913 transitions. [2021-06-05 11:09:36,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:09:36,013 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:36,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:36,018 INFO L225 Difference]: With dead ends: 6279 [2021-06-05 11:09:36,018 INFO L226 Difference]: Without dead ends: 6279 [2021-06-05 11:09:36,018 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4461.9ms TimeCoverageRelationStatistics Valid=1070, Invalid=5092, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:09:36,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6279 states. [2021-06-05 11:09:36,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6279 to 3956. [2021-06-05 11:09:36,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3953 states have (on average 2.05363015431318) internal successors, (8118), 3955 states have internal predecessors, (8118), 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) [2021-06-05 11:09:36,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 8118 transitions. [2021-06-05 11:09:36,055 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 8118 transitions. Word has length 88 [2021-06-05 11:09:36,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:36,056 INFO L482 AbstractCegarLoop]: Abstraction has 3956 states and 8118 transitions. [2021-06-05 11:09:36,056 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:36,056 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 8118 transitions. [2021-06-05 11:09:36,058 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:36,058 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:36,058 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:36,058 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-06-05 11:09:36,058 INFO L430 AbstractCegarLoop]: === Iteration 54 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:36,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:36,058 INFO L82 PathProgramCache]: Analyzing trace with hash 1072923196, now seen corresponding path program 38 times [2021-06-05 11:09:36,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:36,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [500705053] [2021-06-05 11:09:36,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:36,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:36,927 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:36,927 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:36,927 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [500705053] [2021-06-05 11:09:36,927 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [500705053] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:36,927 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:36,927 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:09:36,928 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1121739854] [2021-06-05 11:09:36,928 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:09:36,928 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:36,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:09:36,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1108, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:09:36,928 INFO L87 Difference]: Start difference. First operand 3956 states and 8118 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:38,182 WARN L205 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 58 [2021-06-05 11:09:38,378 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:09:38,618 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:09:38,826 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:09:39,031 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:09:39,387 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:09:39,621 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:09:39,820 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:09:42,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:42,319 INFO L93 Difference]: Finished difference Result 5861 states and 12045 transitions. [2021-06-05 11:09:42,319 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:09:42,319 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:42,323 INFO L225 Difference]: With dead ends: 5861 [2021-06-05 11:09:42,323 INFO L226 Difference]: Without dead ends: 5861 [2021-06-05 11:09:42,323 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4564.7ms TimeCoverageRelationStatistics Valid=1070, Invalid=5092, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:09:42,328 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5861 states. [2021-06-05 11:09:42,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5861 to 3954. [2021-06-05 11:09:42,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:09:42,356 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:09:42,356 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:09:42,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:42,356 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:09:42,356 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:42,356 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:09:42,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:42,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:42,358 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:42,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-06-05 11:09:42,358 INFO L430 AbstractCegarLoop]: === Iteration 55 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:42,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:42,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1033811856, now seen corresponding path program 39 times [2021-06-05 11:09:42,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:42,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154622810] [2021-06-05 11:09:42,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:42,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:43,213 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:43,213 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:43,213 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154622810] [2021-06-05 11:09:43,213 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154622810] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:43,214 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:43,214 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:09:43,214 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050590860] [2021-06-05 11:09:43,214 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:09:43,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:43,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:09:43,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:09:43,214 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:44,407 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-06-05 11:09:44,602 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 11:09:44,860 WARN L205 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:09:45,069 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:09:45,278 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:09:45,665 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:09:45,891 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:09:46,089 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:09:48,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:48,782 INFO L93 Difference]: Finished difference Result 6253 states and 12861 transitions. [2021-06-05 11:09:48,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:09:48,782 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:48,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:48,786 INFO L225 Difference]: With dead ends: 6253 [2021-06-05 11:09:48,786 INFO L226 Difference]: Without dead ends: 6253 [2021-06-05 11:09:48,787 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4446.1ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:09:48,793 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2021-06-05 11:09:48,818 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 3966. [2021-06-05 11:09:48,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3963 states have (on average 2.053494827151148) internal successors, (8138), 3965 states have internal predecessors, (8138), 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) [2021-06-05 11:09:48,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 8138 transitions. [2021-06-05 11:09:48,825 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 8138 transitions. Word has length 88 [2021-06-05 11:09:48,825 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:48,825 INFO L482 AbstractCegarLoop]: Abstraction has 3966 states and 8138 transitions. [2021-06-05 11:09:48,825 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:09:48,825 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 8138 transitions. [2021-06-05 11:09:48,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:48,827 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:48,827 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:48,827 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-06-05 11:09:48,827 INFO L430 AbstractCegarLoop]: === Iteration 56 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:48,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:48,828 INFO L82 PathProgramCache]: Analyzing trace with hash 923013642, now seen corresponding path program 40 times [2021-06-05 11:09:48,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:48,828 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011536745] [2021-06-05 11:09:48,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:48,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:49,515 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 17 [2021-06-05 11:09:49,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:49,800 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:49,800 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011536745] [2021-06-05 11:09:49,800 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011536745] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:49,800 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:49,800 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:09:49,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311637781] [2021-06-05 11:09:49,800 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:09:49,800 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:49,800 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:09:49,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:09:49,801 INFO L87 Difference]: Start difference. First operand 3966 states and 8138 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:51,003 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:09:51,213 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:09:51,415 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:09:51,641 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:09:52,022 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:09:52,251 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:09:52,442 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:09:52,658 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:09:52,858 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:09:55,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:09:55,784 INFO L93 Difference]: Finished difference Result 7717 states and 15886 transitions. [2021-06-05 11:09:55,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:09:55,784 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:09:55,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:09:55,789 INFO L225 Difference]: With dead ends: 7717 [2021-06-05 11:09:55,789 INFO L226 Difference]: Without dead ends: 7717 [2021-06-05 11:09:55,790 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 4783.6ms TimeCoverageRelationStatistics Valid=1168, Invalid=5312, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:09:55,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7717 states. [2021-06-05 11:09:55,824 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7717 to 3986. [2021-06-05 11:09:55,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3986 states, 3983 states have (on average 2.0537283454682402) internal successors, (8180), 3985 states have internal predecessors, (8180), 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) [2021-06-05 11:09:55,829 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3986 states to 3986 states and 8180 transitions. [2021-06-05 11:09:55,830 INFO L78 Accepts]: Start accepts. Automaton has 3986 states and 8180 transitions. Word has length 88 [2021-06-05 11:09:55,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:09:55,830 INFO L482 AbstractCegarLoop]: Abstraction has 3986 states and 8180 transitions. [2021-06-05 11:09:55,830 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:55,830 INFO L276 IsEmpty]: Start isEmpty. Operand 3986 states and 8180 transitions. [2021-06-05 11:09:55,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:09:55,832 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:09:55,832 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:09:55,832 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-06-05 11:09:55,832 INFO L430 AbstractCegarLoop]: === Iteration 57 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:09:55,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:09:55,832 INFO L82 PathProgramCache]: Analyzing trace with hash 263136244, now seen corresponding path program 41 times [2021-06-05 11:09:55,832 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:09:55,832 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1705762698] [2021-06-05 11:09:55,832 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:09:55,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:09:56,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:09:56,635 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:09:56,635 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1705762698] [2021-06-05 11:09:56,636 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1705762698] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:09:56,636 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:09:56,636 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:09:56,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036012651] [2021-06-05 11:09:56,636 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:09:56,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:09:56,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:09:56,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:09:56,636 INFO L87 Difference]: Start difference. First operand 3986 states and 8180 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:09:57,798 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:09:58,010 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:09:58,223 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:09:58,453 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:09:58,818 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:09:59,070 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:09:59,299 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:09:59,513 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:10:00,440 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:10:02,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:02,600 INFO L93 Difference]: Finished difference Result 6229 states and 12798 transitions. [2021-06-05 11:10:02,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:10:02,601 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:02,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:02,605 INFO L225 Difference]: With dead ends: 6229 [2021-06-05 11:10:02,605 INFO L226 Difference]: Without dead ends: 6229 [2021-06-05 11:10:02,606 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 4719.5ms TimeCoverageRelationStatistics Valid=1050, Invalid=4956, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:10:02,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6229 states. [2021-06-05 11:10:02,635 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6229 to 3984. [2021-06-05 11:10:02,637 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 3981 states have (on average 2.0537553378548106) internal successors, (8176), 3983 states have internal predecessors, (8176), 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) [2021-06-05 11:10:02,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 8176 transitions. [2021-06-05 11:10:02,641 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 8176 transitions. Word has length 88 [2021-06-05 11:10:02,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:02,641 INFO L482 AbstractCegarLoop]: Abstraction has 3984 states and 8176 transitions. [2021-06-05 11:10:02,641 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:02,641 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 8176 transitions. [2021-06-05 11:10:02,643 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:02,643 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:02,643 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:02,643 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-06-05 11:10:02,644 INFO L430 AbstractCegarLoop]: === Iteration 58 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:02,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:02,644 INFO L82 PathProgramCache]: Analyzing trace with hash 539125208, now seen corresponding path program 42 times [2021-06-05 11:10:02,644 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:02,644 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607874821] [2021-06-05 11:10:02,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:02,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:03,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:03,437 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:03,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607874821] [2021-06-05 11:10:03,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607874821] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:03,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:03,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:10:03,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308360085] [2021-06-05 11:10:03,438 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:10:03,438 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:03,438 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:10:03,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:10:03,439 INFO L87 Difference]: Start difference. First operand 3984 states and 8176 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:04,523 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 56 [2021-06-05 11:10:04,742 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:10:04,962 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:10:05,205 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:10:05,471 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:10:05,734 WARN L205 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:10:05,987 WARN L205 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:10:06,495 WARN L205 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:10:06,777 WARN L205 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:10:06,992 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:10:07,782 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-05 11:10:07,924 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:10:08,132 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-05 11:10:10,040 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:10,041 INFO L93 Difference]: Finished difference Result 6253 states and 12861 transitions. [2021-06-05 11:10:10,041 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:10:10,041 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:10,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:10,045 INFO L225 Difference]: With dead ends: 6253 [2021-06-05 11:10:10,045 INFO L226 Difference]: Without dead ends: 6253 [2021-06-05 11:10:10,045 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 5265.5ms TimeCoverageRelationStatistics Valid=1093, Invalid=5069, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:10:10,051 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6253 states. [2021-06-05 11:10:10,075 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6253 to 3968. [2021-06-05 11:10:10,077 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3965 states have (on average 2.053467843631778) internal successors, (8142), 3967 states have internal predecessors, (8142), 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) [2021-06-05 11:10:10,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 8142 transitions. [2021-06-05 11:10:10,081 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 8142 transitions. Word has length 88 [2021-06-05 11:10:10,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:10,081 INFO L482 AbstractCegarLoop]: Abstraction has 3968 states and 8142 transitions. [2021-06-05 11:10:10,081 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:10,081 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 8142 transitions. [2021-06-05 11:10:10,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:10,083 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:10,083 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:10,083 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-06-05 11:10:10,083 INFO L430 AbstractCegarLoop]: === Iteration 59 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:10,083 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:10,083 INFO L82 PathProgramCache]: Analyzing trace with hash 235147712, now seen corresponding path program 43 times [2021-06-05 11:10:10,083 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:10,083 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135742437] [2021-06-05 11:10:10,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:10,987 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:10,988 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:10,988 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135742437] [2021-06-05 11:10:10,988 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135742437] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:10,988 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:10,988 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:10:10,988 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [785519826] [2021-06-05 11:10:10,988 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:10:10,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:10,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:10:10,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:10:10,989 INFO L87 Difference]: Start difference. First operand 3968 states and 8142 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:12,230 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 63 [2021-06-05 11:10:12,449 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 67 [2021-06-05 11:10:12,709 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:10:12,944 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:10:13,172 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:10:13,604 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:10:13,854 WARN L205 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:10:14,052 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:10:14,737 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2021-06-05 11:10:16,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:16,889 INFO L93 Difference]: Finished difference Result 6388 states and 13146 transitions. [2021-06-05 11:10:16,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:10:16,890 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:16,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:16,894 INFO L225 Difference]: With dead ends: 6388 [2021-06-05 11:10:16,895 INFO L226 Difference]: Without dead ends: 6388 [2021-06-05 11:10:16,895 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4759.9ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:10:16,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6388 states. [2021-06-05 11:10:16,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6388 to 3962. [2021-06-05 11:10:16,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3959 states have (on average 2.0535488759787826) internal successors, (8130), 3961 states have internal predecessors, (8130), 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) [2021-06-05 11:10:16,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 8130 transitions. [2021-06-05 11:10:16,934 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 8130 transitions. Word has length 88 [2021-06-05 11:10:16,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:16,934 INFO L482 AbstractCegarLoop]: Abstraction has 3962 states and 8130 transitions. [2021-06-05 11:10:16,934 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:16,934 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 8130 transitions. [2021-06-05 11:10:16,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:16,936 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:16,936 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:16,936 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-06-05 11:10:16,936 INFO L430 AbstractCegarLoop]: === Iteration 60 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:16,937 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:16,937 INFO L82 PathProgramCache]: Analyzing trace with hash 935351506, now seen corresponding path program 44 times [2021-06-05 11:10:16,937 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:16,937 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950393289] [2021-06-05 11:10:16,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:16,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:17,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:17,830 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:17,830 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950393289] [2021-06-05 11:10:17,830 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [950393289] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:17,830 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:17,830 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:10:17,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1723764365] [2021-06-05 11:10:17,831 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:10:17,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:17,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:10:17,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1108, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:10:17,831 INFO L87 Difference]: Start difference. First operand 3962 states and 8130 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:19,132 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 58 [2021-06-05 11:10:19,335 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 11:10:19,611 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:10:19,834 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:10:20,047 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:10:20,458 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:10:20,696 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:10:20,888 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:10:23,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:23,672 INFO L93 Difference]: Finished difference Result 6313 states and 12981 transitions. [2021-06-05 11:10:23,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:10:23,673 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:23,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:23,677 INFO L225 Difference]: With dead ends: 6313 [2021-06-05 11:10:23,677 INFO L226 Difference]: Without dead ends: 6313 [2021-06-05 11:10:23,677 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4597.9ms TimeCoverageRelationStatistics Valid=1070, Invalid=5092, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:10:23,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6313 states. [2021-06-05 11:10:23,711 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6313 to 3958. [2021-06-05 11:10:23,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3958 states, 3955 states have (on average 2.0536030341340075) internal successors, (8122), 3957 states have internal predecessors, (8122), 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) [2021-06-05 11:10:23,718 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3958 states to 3958 states and 8122 transitions. [2021-06-05 11:10:23,718 INFO L78 Accepts]: Start accepts. Automaton has 3958 states and 8122 transitions. Word has length 88 [2021-06-05 11:10:23,718 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:23,718 INFO L482 AbstractCegarLoop]: Abstraction has 3958 states and 8122 transitions. [2021-06-05 11:10:23,718 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:23,718 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 8122 transitions. [2021-06-05 11:10:23,720 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:23,720 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:23,720 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:23,720 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-06-05 11:10:23,720 INFO L430 AbstractCegarLoop]: === Iteration 61 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:23,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:23,721 INFO L82 PathProgramCache]: Analyzing trace with hash -1670305902, now seen corresponding path program 45 times [2021-06-05 11:10:23,721 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:23,721 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1091080599] [2021-06-05 11:10:23,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:24,614 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:24,614 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:24,614 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1091080599] [2021-06-05 11:10:24,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1091080599] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:24,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:24,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:10:24,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1386201303] [2021-06-05 11:10:24,615 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:10:24,615 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:24,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:10:24,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1108, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:10:24,615 INFO L87 Difference]: Start difference. First operand 3958 states and 8122 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:26,017 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 11:10:26,307 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:10:26,543 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:10:26,774 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:10:27,255 WARN L205 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:10:27,509 WARN L205 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:10:27,709 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:10:30,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:30,673 INFO L93 Difference]: Finished difference Result 6358 states and 13071 transitions. [2021-06-05 11:10:30,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:10:30,673 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:30,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:30,678 INFO L225 Difference]: With dead ends: 6358 [2021-06-05 11:10:30,678 INFO L226 Difference]: Without dead ends: 6358 [2021-06-05 11:10:30,678 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4787.6ms TimeCoverageRelationStatistics Valid=1070, Invalid=5092, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:10:30,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6358 states. [2021-06-05 11:10:30,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6358 to 3956. [2021-06-05 11:10:30,712 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3953 states have (on average 2.05363015431318) internal successors, (8118), 3955 states have internal predecessors, (8118), 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) [2021-06-05 11:10:30,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 8118 transitions. [2021-06-05 11:10:30,715 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 8118 transitions. Word has length 88 [2021-06-05 11:10:30,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:30,716 INFO L482 AbstractCegarLoop]: Abstraction has 3956 states and 8118 transitions. [2021-06-05 11:10:30,716 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:30,716 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 8118 transitions. [2021-06-05 11:10:30,718 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:30,718 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:30,718 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:30,718 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-06-05 11:10:30,718 INFO L430 AbstractCegarLoop]: === Iteration 62 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:30,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:30,718 INFO L82 PathProgramCache]: Analyzing trace with hash 1993249456, now seen corresponding path program 46 times [2021-06-05 11:10:30,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:30,718 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141214023] [2021-06-05 11:10:30,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:30,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:31,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:31,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:31,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141214023] [2021-06-05 11:10:31,628 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141214023] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:31,628 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:31,628 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:10:31,628 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [705718551] [2021-06-05 11:10:31,628 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:10:31,628 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:31,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:10:31,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:10:31,628 INFO L87 Difference]: Start difference. First operand 3956 states and 8118 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:33,004 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 65 [2021-06-05 11:10:33,264 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 69 [2021-06-05 11:10:33,471 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 71 [2021-06-05 11:10:33,735 WARN L205 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 73 [2021-06-05 11:10:34,137 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:10:34,379 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:10:34,585 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 75 [2021-06-05 11:10:37,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:37,461 INFO L93 Difference]: Finished difference Result 5893 states and 12109 transitions. [2021-06-05 11:10:37,462 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:10:37,462 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:37,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:37,466 INFO L225 Difference]: With dead ends: 5893 [2021-06-05 11:10:37,466 INFO L226 Difference]: Without dead ends: 5893 [2021-06-05 11:10:37,466 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4649.8ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:10:37,472 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5893 states. [2021-06-05 11:10:37,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5893 to 3954. [2021-06-05 11:10:37,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:10:37,505 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:10:37,505 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:10:37,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:37,505 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:10:37,506 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:37,506 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:10:37,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:37,508 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:37,508 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:37,508 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-06-05 11:10:37,508 INFO L430 AbstractCegarLoop]: === Iteration 63 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:37,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:37,508 INFO L82 PathProgramCache]: Analyzing trace with hash -1311842570, now seen corresponding path program 47 times [2021-06-05 11:10:37,508 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:37,508 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2074988962] [2021-06-05 11:10:37,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:38,564 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:38,565 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:38,565 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2074988962] [2021-06-05 11:10:38,565 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2074988962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:38,565 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:38,565 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:10:38,565 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003639009] [2021-06-05 11:10:38,565 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:10:38,565 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:38,565 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:10:38,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:10:38,566 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:39,828 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-05 11:10:40,034 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 11:10:40,321 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:10:40,525 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-06-05 11:10:40,721 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:10:41,085 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:10:41,331 WARN L205 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:10:41,532 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:10:44,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:44,039 INFO L93 Difference]: Finished difference Result 5998 states and 12334 transitions. [2021-06-05 11:10:44,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:10:44,040 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:44,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:44,044 INFO L225 Difference]: With dead ends: 5998 [2021-06-05 11:10:44,044 INFO L226 Difference]: Without dead ends: 5998 [2021-06-05 11:10:44,044 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4671.7ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:10:44,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-06-05 11:10:44,077 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3972. [2021-06-05 11:10:44,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3972 states, 3969 states have (on average 2.053413958175863) internal successors, (8150), 3971 states have internal predecessors, (8150), 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) [2021-06-05 11:10:44,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3972 states to 3972 states and 8150 transitions. [2021-06-05 11:10:44,084 INFO L78 Accepts]: Start accepts. Automaton has 3972 states and 8150 transitions. Word has length 88 [2021-06-05 11:10:44,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:44,084 INFO L482 AbstractCegarLoop]: Abstraction has 3972 states and 8150 transitions. [2021-06-05 11:10:44,084 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:10:44,084 INFO L276 IsEmpty]: Start isEmpty. Operand 3972 states and 8150 transitions. [2021-06-05 11:10:44,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:44,086 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:44,086 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:44,086 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-06-05 11:10:44,086 INFO L430 AbstractCegarLoop]: === Iteration 64 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:44,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:44,087 INFO L82 PathProgramCache]: Analyzing trace with hash 644982928, now seen corresponding path program 48 times [2021-06-05 11:10:44,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:44,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1072845962] [2021-06-05 11:10:44,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:44,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:44,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:44,856 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:44,856 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1072845962] [2021-06-05 11:10:44,856 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1072845962] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:44,856 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:44,856 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:10:44,856 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1556642274] [2021-06-05 11:10:44,856 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:10:44,856 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:44,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:10:44,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:10:44,857 INFO L87 Difference]: Start difference. First operand 3972 states and 8150 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:46,019 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:10:46,226 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:10:46,425 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:10:46,655 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:10:47,016 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:10:47,251 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:10:47,445 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:10:47,693 WARN L205 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:10:47,905 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:10:50,798 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:50,798 INFO L93 Difference]: Finished difference Result 7462 states and 15359 transitions. [2021-06-05 11:10:50,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:10:50,799 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:50,799 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:50,804 INFO L225 Difference]: With dead ends: 7462 [2021-06-05 11:10:50,804 INFO L226 Difference]: Without dead ends: 7462 [2021-06-05 11:10:50,804 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1129 ImplicationChecksByTransitivity, 4669.1ms TimeCoverageRelationStatistics Valid=1168, Invalid=5312, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:10:50,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7462 states. [2021-06-05 11:10:50,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7462 to 3992. [2021-06-05 11:10:50,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3992 states, 3989 states have (on average 2.053647530709451) internal successors, (8192), 3991 states have internal predecessors, (8192), 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) [2021-06-05 11:10:50,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3992 states to 3992 states and 8192 transitions. [2021-06-05 11:10:50,844 INFO L78 Accepts]: Start accepts. Automaton has 3992 states and 8192 transitions. Word has length 88 [2021-06-05 11:10:50,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:50,844 INFO L482 AbstractCegarLoop]: Abstraction has 3992 states and 8192 transitions. [2021-06-05 11:10:50,844 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:50,844 INFO L276 IsEmpty]: Start isEmpty. Operand 3992 states and 8192 transitions. [2021-06-05 11:10:50,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:50,846 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:50,846 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:50,846 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-06-05 11:10:50,846 INFO L430 AbstractCegarLoop]: === Iteration 65 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:50,847 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:50,847 INFO L82 PathProgramCache]: Analyzing trace with hash -14894470, now seen corresponding path program 49 times [2021-06-05 11:10:50,847 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:50,847 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1471872357] [2021-06-05 11:10:50,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:50,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:51,634 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:51,634 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:51,634 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1471872357] [2021-06-05 11:10:51,635 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1471872357] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:51,635 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:51,635 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:10:51,635 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994961048] [2021-06-05 11:10:51,635 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:10:51,635 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:51,635 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:10:51,635 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:10:51,635 INFO L87 Difference]: Start difference. First operand 3992 states and 8192 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:52,829 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:10:53,034 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:10:53,241 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:10:53,473 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:10:53,813 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:10:54,071 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:10:54,304 WARN L205 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:10:54,524 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:10:55,422 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:10:57,441 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:10:57,442 INFO L93 Difference]: Finished difference Result 5974 states and 12271 transitions. [2021-06-05 11:10:57,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:10:57,442 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:10:57,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:10:57,446 INFO L225 Difference]: With dead ends: 5974 [2021-06-05 11:10:57,446 INFO L226 Difference]: Without dead ends: 5974 [2021-06-05 11:10:57,446 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1040 ImplicationChecksByTransitivity, 4680.2ms TimeCoverageRelationStatistics Valid=1050, Invalid=4956, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:10:57,452 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5974 states. [2021-06-05 11:10:57,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5974 to 3990. [2021-06-05 11:10:57,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3990 states, 3987 states have (on average 2.053674441936293) internal successors, (8188), 3989 states have internal predecessors, (8188), 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) [2021-06-05 11:10:57,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3990 states to 3990 states and 8188 transitions. [2021-06-05 11:10:57,482 INFO L78 Accepts]: Start accepts. Automaton has 3990 states and 8188 transitions. Word has length 88 [2021-06-05 11:10:57,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:10:57,483 INFO L482 AbstractCegarLoop]: Abstraction has 3990 states and 8188 transitions. [2021-06-05 11:10:57,483 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:57,483 INFO L276 IsEmpty]: Start isEmpty. Operand 3990 states and 8188 transitions. [2021-06-05 11:10:57,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:10:57,485 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:10:57,485 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:10:57,485 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-06-05 11:10:57,485 INFO L430 AbstractCegarLoop]: === Iteration 66 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:10:57,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:10:57,485 INFO L82 PathProgramCache]: Analyzing trace with hash 261094494, now seen corresponding path program 50 times [2021-06-05 11:10:57,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:10:57,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1791454921] [2021-06-05 11:10:57,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:10:57,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:10:58,266 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:10:58,266 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:10:58,266 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1791454921] [2021-06-05 11:10:58,266 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1791454921] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:10:58,266 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:10:58,266 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:10:58,267 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [353731081] [2021-06-05 11:10:58,267 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:10:58,267 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:10:58,267 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:10:58,267 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=1044, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:10:58,267 INFO L87 Difference]: Start difference. First operand 3990 states and 8188 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:10:59,402 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:10:59,602 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:10:59,831 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:11:00,062 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:11:00,263 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:11:00,472 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:11:00,868 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:11:01,113 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:11:01,320 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:11:02,214 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:11:04,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:04,188 INFO L93 Difference]: Finished difference Result 5998 states and 12334 transitions. [2021-06-05 11:11:04,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:11:04,189 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:04,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:04,193 INFO L225 Difference]: With dead ends: 5998 [2021-06-05 11:11:04,193 INFO L226 Difference]: Without dead ends: 5998 [2021-06-05 11:11:04,193 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4860.5ms TimeCoverageRelationStatistics Valid=1093, Invalid=5069, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:11:04,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5998 states. [2021-06-05 11:11:04,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5998 to 3974. [2021-06-05 11:11:04,224 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3974 states, 3971 states have (on average 2.0533870561571392) internal successors, (8154), 3973 states have internal predecessors, (8154), 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) [2021-06-05 11:11:04,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3974 states to 3974 states and 8154 transitions. [2021-06-05 11:11:04,227 INFO L78 Accepts]: Start accepts. Automaton has 3974 states and 8154 transitions. Word has length 88 [2021-06-05 11:11:04,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:04,227 INFO L482 AbstractCegarLoop]: Abstraction has 3974 states and 8154 transitions. [2021-06-05 11:11:04,227 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:11:04,228 INFO L276 IsEmpty]: Start isEmpty. Operand 3974 states and 8154 transitions. [2021-06-05 11:11:04,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:04,229 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:04,229 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:04,230 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-06-05 11:11:04,230 INFO L430 AbstractCegarLoop]: === Iteration 67 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:04,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:04,230 INFO L82 PathProgramCache]: Analyzing trace with hash -42883002, now seen corresponding path program 51 times [2021-06-05 11:11:04,230 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:04,230 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [300196589] [2021-06-05 11:11:04,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:04,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:05,110 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:05,110 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:05,110 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [300196589] [2021-06-05 11:11:05,110 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [300196589] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:05,110 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:05,110 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:11:05,110 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920743934] [2021-06-05 11:11:05,111 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:11:05,111 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:05,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:11:05,111 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:11:05,111 INFO L87 Difference]: Start difference. First operand 3974 states and 8154 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:06,321 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 63 [2021-06-05 11:11:06,534 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 67 [2021-06-05 11:11:06,808 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:11:07,043 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-06-05 11:11:07,260 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:11:07,664 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:11:07,897 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:11:08,094 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:11:10,740 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:10,741 INFO L93 Difference]: Finished difference Result 6133 states and 12619 transitions. [2021-06-05 11:11:10,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:10,741 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:10,741 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:10,745 INFO L225 Difference]: With dead ends: 6133 [2021-06-05 11:11:10,745 INFO L226 Difference]: Without dead ends: 6133 [2021-06-05 11:11:10,746 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4450.5ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:11:10,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2021-06-05 11:11:10,776 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 3968. [2021-06-05 11:11:10,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3965 states have (on average 2.053467843631778) internal successors, (8142), 3967 states have internal predecessors, (8142), 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) [2021-06-05 11:11:10,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 8142 transitions. [2021-06-05 11:11:10,782 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 8142 transitions. Word has length 88 [2021-06-05 11:11:10,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:10,782 INFO L482 AbstractCegarLoop]: Abstraction has 3968 states and 8142 transitions. [2021-06-05 11:11:10,782 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:10,782 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 8142 transitions. [2021-06-05 11:11:10,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:10,784 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:10,784 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:10,784 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-06-05 11:11:10,785 INFO L430 AbstractCegarLoop]: === Iteration 68 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:10,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:10,785 INFO L82 PathProgramCache]: Analyzing trace with hash 657320792, now seen corresponding path program 52 times [2021-06-05 11:11:10,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:10,785 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1753672949] [2021-06-05 11:11:10,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:10,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:11,661 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:11,662 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:11,662 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1753672949] [2021-06-05 11:11:11,662 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1753672949] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:11,662 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:11,662 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:11:11,662 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1584626653] [2021-06-05 11:11:11,662 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:11:11,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:11,662 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:11:11,662 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1108, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:11:11,663 INFO L87 Difference]: Start difference. First operand 3968 states and 8142 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:13,026 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 11:11:13,292 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:11:13,505 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-06-05 11:11:13,702 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:11:14,089 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:11:14,319 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:11:14,515 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:11:17,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:17,148 INFO L93 Difference]: Finished difference Result 6058 states and 12454 transitions. [2021-06-05 11:11:17,148 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:17,148 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:17,148 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:17,152 INFO L225 Difference]: With dead ends: 6058 [2021-06-05 11:11:17,152 INFO L226 Difference]: Without dead ends: 6058 [2021-06-05 11:11:17,153 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4347.6ms TimeCoverageRelationStatistics Valid=1070, Invalid=5092, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:11:17,158 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6058 states. [2021-06-05 11:11:17,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6058 to 3964. [2021-06-05 11:11:17,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3961 states have (on average 2.053521837919717) internal successors, (8134), 3963 states have internal predecessors, (8134), 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) [2021-06-05 11:11:17,187 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 8134 transitions. [2021-06-05 11:11:17,188 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 8134 transitions. Word has length 88 [2021-06-05 11:11:17,188 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:17,188 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 8134 transitions. [2021-06-05 11:11:17,188 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:17,188 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 8134 transitions. [2021-06-05 11:11:17,190 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:17,190 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:17,190 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:17,190 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-06-05 11:11:17,190 INFO L430 AbstractCegarLoop]: === Iteration 69 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:17,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:17,190 INFO L82 PathProgramCache]: Analyzing trace with hash -1948336616, now seen corresponding path program 53 times [2021-06-05 11:11:17,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:17,190 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1509884980] [2021-06-05 11:11:17,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:17,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:18,053 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:18,053 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:18,053 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1509884980] [2021-06-05 11:11:18,053 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1509884980] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:18,053 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:18,053 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:11:18,053 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [5592060] [2021-06-05 11:11:18,054 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:11:18,054 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:18,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:11:18,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=1108, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:11:18,054 INFO L87 Difference]: Start difference. First operand 3964 states and 8134 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:19,382 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 11:11:19,638 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:11:19,870 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-06-05 11:11:20,062 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:11:20,431 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:11:20,659 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:11:20,852 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:11:23,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:23,440 INFO L93 Difference]: Finished difference Result 6103 states and 12544 transitions. [2021-06-05 11:11:23,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:23,440 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:23,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:23,444 INFO L225 Difference]: With dead ends: 6103 [2021-06-05 11:11:23,444 INFO L226 Difference]: Without dead ends: 6103 [2021-06-05 11:11:23,445 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1062 ImplicationChecksByTransitivity, 4460.3ms TimeCoverageRelationStatistics Valid=1070, Invalid=5092, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:11:23,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6103 states. [2021-06-05 11:11:23,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6103 to 3962. [2021-06-05 11:11:23,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3959 states have (on average 2.0535488759787826) internal successors, (8130), 3961 states have internal predecessors, (8130), 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) [2021-06-05 11:11:23,482 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 8130 transitions. [2021-06-05 11:11:23,482 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 8130 transitions. Word has length 88 [2021-06-05 11:11:23,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:23,482 INFO L482 AbstractCegarLoop]: Abstraction has 3962 states and 8130 transitions. [2021-06-05 11:11:23,482 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:23,482 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 8130 transitions. [2021-06-05 11:11:23,484 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:23,484 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:23,484 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:23,484 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-06-05 11:11:23,484 INFO L430 AbstractCegarLoop]: === Iteration 70 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:23,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:23,485 INFO L82 PathProgramCache]: Analyzing trace with hash 1715218742, now seen corresponding path program 54 times [2021-06-05 11:11:23,485 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:23,485 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666587473] [2021-06-05 11:11:23,485 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:23,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:24,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:24,370 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:24,370 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666587473] [2021-06-05 11:11:24,370 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666587473] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:24,370 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:24,370 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:11:24,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143939078] [2021-06-05 11:11:24,370 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:11:24,370 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:24,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:11:24,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:11:24,371 INFO L87 Difference]: Start difference. First operand 3962 states and 8130 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:25,718 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 11:11:25,979 WARN L205 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:11:26,186 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-06-05 11:11:26,383 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:11:26,764 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:11:26,991 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:11:27,183 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:11:29,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:29,808 INFO L93 Difference]: Finished difference Result 6133 states and 12604 transitions. [2021-06-05 11:11:29,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:29,808 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:29,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:29,812 INFO L225 Difference]: With dead ends: 6133 [2021-06-05 11:11:29,812 INFO L226 Difference]: Without dead ends: 6133 [2021-06-05 11:11:29,812 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4396.8ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:11:29,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6133 states. [2021-06-05 11:11:29,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6133 to 3960. [2021-06-05 11:11:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 3957 states have (on average 2.0535759413697243) internal successors, (8126), 3959 states have internal predecessors, (8126), 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) [2021-06-05 11:11:29,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 8126 transitions. [2021-06-05 11:11:29,846 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 8126 transitions. Word has length 88 [2021-06-05 11:11:29,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:29,846 INFO L482 AbstractCegarLoop]: Abstraction has 3960 states and 8126 transitions. [2021-06-05 11:11:29,846 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:29,846 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 8126 transitions. [2021-06-05 11:11:29,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:29,848 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:29,848 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:29,848 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-06-05 11:11:29,848 INFO L430 AbstractCegarLoop]: === Iteration 71 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash 1267803480, now seen corresponding path program 55 times [2021-06-05 11:11:29,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:29,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [718015484] [2021-06-05 11:11:29,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:29,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:30,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:30,730 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:30,730 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [718015484] [2021-06-05 11:11:30,730 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [718015484] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:30,730 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:30,730 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:11:30,730 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267550638] [2021-06-05 11:11:30,730 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:11:30,730 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:30,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:11:30,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=1109, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:11:30,731 INFO L87 Difference]: Start difference. First operand 3960 states and 8126 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:32,049 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 65 [2021-06-05 11:11:32,310 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:11:32,514 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 71 [2021-06-05 11:11:32,712 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 73 [2021-06-05 11:11:33,099 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:11:33,329 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 80 [2021-06-05 11:11:33,524 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:11:36,181 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:36,181 INFO L93 Difference]: Finished difference Result 5636 states and 11578 transitions. [2021-06-05 11:11:36,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:36,181 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:36,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:36,185 INFO L225 Difference]: With dead ends: 5636 [2021-06-05 11:11:36,185 INFO L226 Difference]: Without dead ends: 5636 [2021-06-05 11:11:36,186 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1063 ImplicationChecksByTransitivity, 4348.6ms TimeCoverageRelationStatistics Valid=1069, Invalid=5093, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:11:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5636 states. [2021-06-05 11:11:36,213 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5636 to 3954. [2021-06-05 11:11:36,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:11:36,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:11:36,219 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:11:36,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:36,220 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:11:36,220 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:36,220 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:11:36,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:36,222 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:36,222 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:36,222 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-06-05 11:11:36,222 INFO L430 AbstractCegarLoop]: === Iteration 72 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:36,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:36,222 INFO L82 PathProgramCache]: Analyzing trace with hash 281141444, now seen corresponding path program 56 times [2021-06-05 11:11:36,222 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:36,222 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31319942] [2021-06-05 11:11:36,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:36,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:37,130 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:37,130 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:37,130 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31319942] [2021-06-05 11:11:37,130 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31319942] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:37,130 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:37,130 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:11:37,130 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828674013] [2021-06-05 11:11:37,130 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:11:37,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:37,131 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:11:37,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:11:37,131 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:38,161 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 11:11:38,315 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:11:38,507 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:11:38,759 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:11:38,949 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:11:39,154 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:11:39,533 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:11:39,782 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:11:39,978 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:11:42,610 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:42,610 INFO L93 Difference]: Finished difference Result 5895 states and 12132 transitions. [2021-06-05 11:11:42,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:42,610 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:42,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:42,615 INFO L225 Difference]: With dead ends: 5895 [2021-06-05 11:11:42,615 INFO L226 Difference]: Without dead ends: 5895 [2021-06-05 11:11:42,615 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4499.9ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:11:42,620 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5895 states. [2021-06-05 11:11:42,643 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5895 to 3962. [2021-06-05 11:11:42,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3959 states have (on average 2.0535488759787826) internal successors, (8130), 3961 states have internal predecessors, (8130), 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) [2021-06-05 11:11:42,649 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 8130 transitions. [2021-06-05 11:11:42,649 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 8130 transitions. Word has length 88 [2021-06-05 11:11:42,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:42,649 INFO L482 AbstractCegarLoop]: Abstraction has 3962 states and 8130 transitions. [2021-06-05 11:11:42,649 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:11:42,649 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 8130 transitions. [2021-06-05 11:11:42,651 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:42,651 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:42,651 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:42,651 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-06-05 11:11:42,652 INFO L430 AbstractCegarLoop]: === Iteration 73 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:42,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:42,652 INFO L82 PathProgramCache]: Analyzing trace with hash -2057000354, now seen corresponding path program 57 times [2021-06-05 11:11:42,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:42,652 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347490014] [2021-06-05 11:11:42,652 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:42,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:43,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:43,401 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:43,401 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347490014] [2021-06-05 11:11:43,401 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347490014] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:43,401 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:43,401 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:11:43,401 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164480368] [2021-06-05 11:11:43,401 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:11:43,401 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:43,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:11:43,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:11:43,402 INFO L87 Difference]: Start difference. First operand 3962 states and 8130 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:11:44,471 WARN L205 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 11:11:44,620 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:11:44,827 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:11:45,019 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:11:45,228 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:11:45,586 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:11:45,810 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:11:46,024 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:11:46,237 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:11:46,435 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:11:49,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:49,520 INFO L93 Difference]: Finished difference Result 7679 states and 15829 transitions. [2021-06-05 11:11:49,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:11:49,521 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:49,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:49,526 INFO L225 Difference]: With dead ends: 7679 [2021-06-05 11:11:49,526 INFO L226 Difference]: Without dead ends: 7679 [2021-06-05 11:11:49,527 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 4619.6ms TimeCoverageRelationStatistics Valid=1167, Invalid=5313, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:11:49,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7679 states. [2021-06-05 11:11:49,563 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7679 to 3982. [2021-06-05 11:11:49,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3979 states have (on average 2.053782357376225) internal successors, (8172), 3981 states have internal predecessors, (8172), 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) [2021-06-05 11:11:49,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 8172 transitions. [2021-06-05 11:11:49,570 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 8172 transitions. Word has length 88 [2021-06-05 11:11:49,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:49,570 INFO L482 AbstractCegarLoop]: Abstraction has 3982 states and 8172 transitions. [2021-06-05 11:11:49,570 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:11:49,570 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 8172 transitions. [2021-06-05 11:11:49,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:49,572 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:49,572 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:49,572 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-06-05 11:11:49,572 INFO L430 AbstractCegarLoop]: === Iteration 74 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:49,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:49,572 INFO L82 PathProgramCache]: Analyzing trace with hash 1578089544, now seen corresponding path program 58 times [2021-06-05 11:11:49,573 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:49,573 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [529669407] [2021-06-05 11:11:49,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:49,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:50,363 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:50,364 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:50,364 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [529669407] [2021-06-05 11:11:50,364 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [529669407] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:50,364 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:50,364 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:11:50,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [33919028] [2021-06-05 11:11:50,364 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:11:50,364 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:50,364 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:11:50,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:11:50,365 INFO L87 Difference]: Start difference. First operand 3982 states and 8172 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:11:51,512 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:11:51,714 WARN L205 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:11:51,908 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:11:52,119 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:11:52,463 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:11:52,724 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:11:52,950 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:11:53,163 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:11:53,931 WARN L205 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-05 11:11:54,071 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:11:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:11:56,035 INFO L93 Difference]: Finished difference Result 6191 states and 12741 transitions. [2021-06-05 11:11:56,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:11:56,035 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:11:56,035 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:11:56,039 INFO L225 Difference]: With dead ends: 6191 [2021-06-05 11:11:56,039 INFO L226 Difference]: Without dead ends: 6191 [2021-06-05 11:11:56,040 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4706.6ms TimeCoverageRelationStatistics Valid=1049, Invalid=4957, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:11:56,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6191 states. [2021-06-05 11:11:56,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6191 to 3980. [2021-06-05 11:11:56,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3977 states have (on average 2.053809404073422) internal successors, (8168), 3979 states have internal predecessors, (8168), 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) [2021-06-05 11:11:56,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 8168 transitions. [2021-06-05 11:11:56,076 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 8168 transitions. Word has length 88 [2021-06-05 11:11:56,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:11:56,076 INFO L482 AbstractCegarLoop]: Abstraction has 3980 states and 8168 transitions. [2021-06-05 11:11:56,076 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:11:56,076 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 8168 transitions. [2021-06-05 11:11:56,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:11:56,078 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:11:56,078 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:11:56,079 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-06-05 11:11:56,079 INFO L430 AbstractCegarLoop]: === Iteration 75 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:11:56,079 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:11:56,079 INFO L82 PathProgramCache]: Analyzing trace with hash 1854078508, now seen corresponding path program 59 times [2021-06-05 11:11:56,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:11:56,079 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738316216] [2021-06-05 11:11:56,079 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:11:56,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:11:56,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:11:56,847 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:11:56,847 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738316216] [2021-06-05 11:11:56,847 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [738316216] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:11:56,847 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:11:56,847 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:11:56,847 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [929155448] [2021-06-05 11:11:56,847 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:11:56,847 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:11:56,847 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:11:56,847 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:11:56,848 INFO L87 Difference]: Start difference. First operand 3980 states and 8168 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:11:58,051 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:11:58,263 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:11:58,471 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:11:58,696 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:11:58,892 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:11:59,109 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:11:59,513 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:11:59,764 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:11:59,974 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:12:00,912 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:12:03,042 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:03,042 INFO L93 Difference]: Finished difference Result 6215 states and 12804 transitions. [2021-06-05 11:12:03,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:12:03,043 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:03,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:03,047 INFO L225 Difference]: With dead ends: 6215 [2021-06-05 11:12:03,047 INFO L226 Difference]: Without dead ends: 6215 [2021-06-05 11:12:03,047 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4884.3ms TimeCoverageRelationStatistics Valid=1092, Invalid=5070, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:12:03,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6215 states. [2021-06-05 11:12:03,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6215 to 3964. [2021-06-05 11:12:03,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3961 states have (on average 2.053521837919717) internal successors, (8134), 3963 states have internal predecessors, (8134), 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) [2021-06-05 11:12:03,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 8134 transitions. [2021-06-05 11:12:03,084 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 8134 transitions. Word has length 88 [2021-06-05 11:12:03,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:03,085 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 8134 transitions. [2021-06-05 11:12:03,085 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:03,085 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 8134 transitions. [2021-06-05 11:12:03,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:03,087 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:03,087 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:03,087 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-06-05 11:12:03,087 INFO L430 AbstractCegarLoop]: === Iteration 76 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:03,087 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:03,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1550101012, now seen corresponding path program 60 times [2021-06-05 11:12:03,087 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:03,087 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024434776] [2021-06-05 11:12:03,087 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:03,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:03,972 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:03,973 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:03,973 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024434776] [2021-06-05 11:12:03,973 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024434776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:03,973 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:03,973 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:12:03,978 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [869166108] [2021-06-05 11:12:03,978 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:12:03,978 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:03,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:12:03,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:12:03,979 INFO L87 Difference]: Start difference. First operand 3964 states and 8134 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:12:05,179 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:12:05,392 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:12:05,626 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:12:05,829 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:12:06,049 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:12:06,448 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:12:06,681 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:12:06,877 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:12:09,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:09,729 INFO L93 Difference]: Finished difference Result 6200 states and 12774 transitions. [2021-06-05 11:12:09,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:12:09,730 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:09,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:09,734 INFO L225 Difference]: With dead ends: 6200 [2021-06-05 11:12:09,734 INFO L226 Difference]: Without dead ends: 6200 [2021-06-05 11:12:09,734 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4510.9ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:12:09,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6200 states. [2021-06-05 11:12:09,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6200 to 3958. [2021-06-05 11:12:09,793 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3958 states, 3955 states have (on average 2.0536030341340075) internal successors, (8122), 3957 states have internal predecessors, (8122), 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) [2021-06-05 11:12:09,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3958 states to 3958 states and 8122 transitions. [2021-06-05 11:12:09,797 INFO L78 Accepts]: Start accepts. Automaton has 3958 states and 8122 transitions. Word has length 88 [2021-06-05 11:12:09,797 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:09,797 INFO L482 AbstractCegarLoop]: Abstraction has 3958 states and 8122 transitions. [2021-06-05 11:12:09,797 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:12:09,797 INFO L276 IsEmpty]: Start isEmpty. Operand 3958 states and 8122 transitions. [2021-06-05 11:12:09,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:09,799 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:09,799 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:09,799 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-06-05 11:12:09,799 INFO L430 AbstractCegarLoop]: === Iteration 77 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:09,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:09,799 INFO L82 PathProgramCache]: Analyzing trace with hash 1915785980, now seen corresponding path program 61 times [2021-06-05 11:12:09,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:09,799 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [336073603] [2021-06-05 11:12:09,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:09,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:10,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:10,506 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:10,506 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [336073603] [2021-06-05 11:12:10,506 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [336073603] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:10,506 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:10,507 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:12:10,507 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1780808313] [2021-06-05 11:12:10,507 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:12:10,507 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:10,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:12:10,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:12:10,507 INFO L87 Difference]: Start difference. First operand 3958 states and 8122 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:11,722 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:12:11,892 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:12:12,083 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:12:12,287 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:12:12,610 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:12:12,841 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:12:13,039 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2021-06-05 11:12:13,262 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:12:13,521 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:12:16,382 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:16,382 INFO L93 Difference]: Finished difference Result 6850 states and 14118 transitions. [2021-06-05 11:12:16,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:12:16,383 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:16,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:16,387 INFO L225 Difference]: With dead ends: 6850 [2021-06-05 11:12:16,387 INFO L226 Difference]: Without dead ends: 6850 [2021-06-05 11:12:16,388 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 4557.0ms TimeCoverageRelationStatistics Valid=1167, Invalid=5313, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:12:16,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6850 states. [2021-06-05 11:12:16,421 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6850 to 3985. [2021-06-05 11:12:16,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3985 states, 3982 states have (on average 2.0539929683576093) internal successors, (8179), 3984 states have internal predecessors, (8179), 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) [2021-06-05 11:12:16,427 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3985 states to 3985 states and 8179 transitions. [2021-06-05 11:12:16,428 INFO L78 Accepts]: Start accepts. Automaton has 3985 states and 8179 transitions. Word has length 88 [2021-06-05 11:12:16,428 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:16,428 INFO L482 AbstractCegarLoop]: Abstraction has 3985 states and 8179 transitions. [2021-06-05 11:12:16,428 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:16,428 INFO L276 IsEmpty]: Start isEmpty. Operand 3985 states and 8179 transitions. [2021-06-05 11:12:16,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:16,430 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:16,430 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:16,430 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-06-05 11:12:16,430 INFO L430 AbstractCegarLoop]: === Iteration 78 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:16,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:16,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1531701316, now seen corresponding path program 62 times [2021-06-05 11:12:16,431 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:16,431 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [485848775] [2021-06-05 11:12:16,431 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:16,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:17,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:17,258 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:17,258 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [485848775] [2021-06-05 11:12:17,258 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [485848775] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:17,258 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:17,258 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:12:17,258 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [104562743] [2021-06-05 11:12:17,258 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:12:17,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:17,259 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:12:17,259 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:12:17,259 INFO L87 Difference]: Start difference. First operand 3985 states and 8179 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:18,319 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-06-05 11:12:18,510 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2021-06-05 11:12:18,690 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2021-06-05 11:12:18,903 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:12:19,138 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-06-05 11:12:19,485 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 71 [2021-06-05 11:12:19,773 WARN L205 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2021-06-05 11:12:20,003 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:12:20,220 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:12:22,971 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:22,971 INFO L93 Difference]: Finished difference Result 6128 states and 12617 transitions. [2021-06-05 11:12:22,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:12:22,971 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:22,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:22,976 INFO L225 Difference]: With dead ends: 6128 [2021-06-05 11:12:22,976 INFO L226 Difference]: Without dead ends: 6128 [2021-06-05 11:12:22,976 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4478.9ms TimeCoverageRelationStatistics Valid=1049, Invalid=4957, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:12:22,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6128 states. [2021-06-05 11:12:23,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6128 to 3983. [2021-06-05 11:12:23,009 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3983 states, 3980 states have (on average 2.0540201005025125) internal successors, (8175), 3982 states have internal predecessors, (8175), 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) [2021-06-05 11:12:23,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 8175 transitions. [2021-06-05 11:12:23,013 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 8175 transitions. Word has length 88 [2021-06-05 11:12:23,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:23,013 INFO L482 AbstractCegarLoop]: Abstraction has 3983 states and 8175 transitions. [2021-06-05 11:12:23,013 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:23,013 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 8175 transitions. [2021-06-05 11:12:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:23,015 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:23,015 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:23,015 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-06-05 11:12:23,015 INFO L430 AbstractCegarLoop]: === Iteration 79 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:23,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:23,016 INFO L82 PathProgramCache]: Analyzing trace with hash 2107251226, now seen corresponding path program 63 times [2021-06-05 11:12:23,016 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:23,016 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443437362] [2021-06-05 11:12:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:23,803 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:23,803 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:23,803 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443437362] [2021-06-05 11:12:23,803 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443437362] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:23,803 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:23,803 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:12:23,803 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1051091790] [2021-06-05 11:12:23,803 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:12:23,803 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:23,804 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:12:23,804 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:12:23,804 INFO L87 Difference]: Start difference. First operand 3983 states and 8175 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:24,884 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-06-05 11:12:25,079 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2021-06-05 11:12:25,263 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 65 [2021-06-05 11:12:25,465 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:12:25,688 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-06-05 11:12:25,898 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2021-06-05 11:12:26,118 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2021-06-05 11:12:26,507 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2021-06-05 11:12:26,744 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-06-05 11:12:26,945 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:12:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:29,647 INFO L93 Difference]: Finished difference Result 6032 states and 12425 transitions. [2021-06-05 11:12:29,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:12:29,647 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:29,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:29,651 INFO L225 Difference]: With dead ends: 6032 [2021-06-05 11:12:29,651 INFO L226 Difference]: Without dead ends: 6032 [2021-06-05 11:12:29,652 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4576.4ms TimeCoverageRelationStatistics Valid=1092, Invalid=5070, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:12:29,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6032 states. [2021-06-05 11:12:29,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6032 to 3967. [2021-06-05 11:12:29,687 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3967 states, 3964 states have (on average 2.0537336024217963) internal successors, (8141), 3966 states have internal predecessors, (8141), 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) [2021-06-05 11:12:29,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3967 states to 3967 states and 8141 transitions. [2021-06-05 11:12:29,691 INFO L78 Accepts]: Start accepts. Automaton has 3967 states and 8141 transitions. Word has length 88 [2021-06-05 11:12:29,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:29,691 INFO L482 AbstractCegarLoop]: Abstraction has 3967 states and 8141 transitions. [2021-06-05 11:12:29,691 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:29,692 INFO L276 IsEmpty]: Start isEmpty. Operand 3967 states and 8141 transitions. [2021-06-05 11:12:29,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:29,694 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:29,694 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:29,694 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-06-05 11:12:29,694 INFO L430 AbstractCegarLoop]: === Iteration 80 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:29,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:29,694 INFO L82 PathProgramCache]: Analyzing trace with hash -1015028228, now seen corresponding path program 64 times [2021-06-05 11:12:29,694 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:29,694 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [100207230] [2021-06-05 11:12:29,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:29,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:30,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:30,518 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:30,518 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [100207230] [2021-06-05 11:12:30,518 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [100207230] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:30,518 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:30,518 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:12:30,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283929931] [2021-06-05 11:12:30,518 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:12:30,518 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:30,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:12:30,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:12:30,519 INFO L87 Difference]: Start difference. First operand 3967 states and 8141 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:12:31,530 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 11:12:31,712 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2021-06-05 11:12:31,906 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2021-06-05 11:12:32,104 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:12:32,382 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-06-05 11:12:32,591 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 72 [2021-06-05 11:12:32,781 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 68 [2021-06-05 11:12:32,976 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:12:33,186 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 76 [2021-06-05 11:12:33,512 WARN L205 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 83 [2021-06-05 11:12:33,799 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 79 [2021-06-05 11:12:36,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:36,933 INFO L93 Difference]: Finished difference Result 7489 states and 15422 transitions. [2021-06-05 11:12:36,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-05 11:12:36,934 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:36,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:36,939 INFO L225 Difference]: With dead ends: 7489 [2021-06-05 11:12:36,939 INFO L226 Difference]: Without dead ends: 7489 [2021-06-05 11:12:36,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 5220.4ms TimeCoverageRelationStatistics Valid=1304, Invalid=5836, Unknown=0, NotChecked=0, Total=7140 [2021-06-05 11:12:36,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7489 states. [2021-06-05 11:12:36,973 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7489 to 3968. [2021-06-05 11:12:36,976 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3968 states, 3965 states have (on average 2.053720050441362) internal successors, (8143), 3967 states have internal predecessors, (8143), 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) [2021-06-05 11:12:36,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3968 states to 3968 states and 8143 transitions. [2021-06-05 11:12:36,979 INFO L78 Accepts]: Start accepts. Automaton has 3968 states and 8143 transitions. Word has length 88 [2021-06-05 11:12:36,979 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:36,980 INFO L482 AbstractCegarLoop]: Abstraction has 3968 states and 8143 transitions. [2021-06-05 11:12:36,980 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:12:36,980 INFO L276 IsEmpty]: Start isEmpty. Operand 3968 states and 8143 transitions. [2021-06-05 11:12:36,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:36,982 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:36,982 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:36,982 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-06-05 11:12:36,982 INFO L430 AbstractCegarLoop]: === Iteration 81 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:36,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:36,982 INFO L82 PathProgramCache]: Analyzing trace with hash 733836902, now seen corresponding path program 65 times [2021-06-05 11:12:36,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:36,982 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351589504] [2021-06-05 11:12:36,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:36,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:37,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:37,815 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:37,815 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351589504] [2021-06-05 11:12:37,815 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351589504] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:37,815 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:37,815 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:12:37,815 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [862616992] [2021-06-05 11:12:37,816 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:12:37,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:37,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:12:37,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:12:37,816 INFO L87 Difference]: Start difference. First operand 3968 states and 8143 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:12:38,843 WARN L205 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 11:12:39,032 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2021-06-05 11:12:39,211 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 65 [2021-06-05 11:12:39,410 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 69 [2021-06-05 11:12:39,703 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 70 [2021-06-05 11:12:39,934 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:12:40,160 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 76 [2021-06-05 11:12:40,364 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 72 [2021-06-05 11:12:40,612 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 78 [2021-06-05 11:12:40,880 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 74 [2021-06-05 11:12:43,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:43,703 INFO L93 Difference]: Finished difference Result 6717 states and 13818 transitions. [2021-06-05 11:12:43,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:12:43,703 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:43,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:43,708 INFO L225 Difference]: With dead ends: 6717 [2021-06-05 11:12:43,708 INFO L226 Difference]: Without dead ends: 6717 [2021-06-05 11:12:43,709 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 86 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 80 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1101 ImplicationChecksByTransitivity, 4798.6ms TimeCoverageRelationStatistics Valid=1176, Invalid=5466, Unknown=0, NotChecked=0, Total=6642 [2021-06-05 11:12:43,715 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6717 states. [2021-06-05 11:12:43,742 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6717 to 3970. [2021-06-05 11:12:43,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3970 states, 3967 states have (on average 2.053692966977565) internal successors, (8147), 3969 states have internal predecessors, (8147), 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) [2021-06-05 11:12:43,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3970 states to 3970 states and 8147 transitions. [2021-06-05 11:12:43,748 INFO L78 Accepts]: Start accepts. Automaton has 3970 states and 8147 transitions. Word has length 88 [2021-06-05 11:12:43,748 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:43,748 INFO L482 AbstractCegarLoop]: Abstraction has 3970 states and 8147 transitions. [2021-06-05 11:12:43,748 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:12:43,748 INFO L276 IsEmpty]: Start isEmpty. Operand 3970 states and 8147 transitions. [2021-06-05 11:12:43,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:43,750 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:43,751 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:43,751 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable80 [2021-06-05 11:12:43,751 INFO L430 AbstractCegarLoop]: === Iteration 82 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:43,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:43,751 INFO L82 PathProgramCache]: Analyzing trace with hash 1581316902, now seen corresponding path program 66 times [2021-06-05 11:12:43,751 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:43,751 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1241346093] [2021-06-05 11:12:43,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:43,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:44,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:44,511 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:44,511 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1241346093] [2021-06-05 11:12:44,511 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1241346093] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:44,511 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:44,511 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:12:44,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332753470] [2021-06-05 11:12:44,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:12:44,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:44,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:12:44,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:12:44,512 INFO L87 Difference]: Start difference. First operand 3970 states and 8147 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:45,677 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:12:45,843 WARN L205 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:12:46,038 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:12:46,311 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:12:46,531 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:12:46,770 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:12:46,998 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 79 [2021-06-05 11:12:47,187 WARN L205 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 75 [2021-06-05 11:12:49,834 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:49,834 INFO L93 Difference]: Finished difference Result 5884 states and 12095 transitions. [2021-06-05 11:12:49,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:12:49,834 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:49,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:49,838 INFO L225 Difference]: With dead ends: 5884 [2021-06-05 11:12:49,839 INFO L226 Difference]: Without dead ends: 5884 [2021-06-05 11:12:49,839 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 992 ImplicationChecksByTransitivity, 4276.5ms TimeCoverageRelationStatistics Valid=1045, Invalid=4961, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:12:49,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5884 states. [2021-06-05 11:12:49,870 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5884 to 3959. [2021-06-05 11:12:49,873 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3959 states, 3956 states have (on average 2.0535894843276035) internal successors, (8124), 3958 states have internal predecessors, (8124), 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) [2021-06-05 11:12:49,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3959 states to 3959 states and 8124 transitions. [2021-06-05 11:12:49,877 INFO L78 Accepts]: Start accepts. Automaton has 3959 states and 8124 transitions. Word has length 88 [2021-06-05 11:12:49,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:49,877 INFO L482 AbstractCegarLoop]: Abstraction has 3959 states and 8124 transitions. [2021-06-05 11:12:49,877 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:49,877 INFO L276 IsEmpty]: Start isEmpty. Operand 3959 states and 8124 transitions. [2021-06-05 11:12:49,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:49,879 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:49,879 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:49,879 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable81 [2021-06-05 11:12:49,879 INFO L430 AbstractCegarLoop]: === Iteration 83 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:49,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:49,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1908853898, now seen corresponding path program 67 times [2021-06-05 11:12:49,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:49,880 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368539102] [2021-06-05 11:12:49,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:49,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:50,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:50,612 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:50,612 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368539102] [2021-06-05 11:12:50,612 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368539102] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:50,612 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:50,612 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:12:50,612 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051918556] [2021-06-05 11:12:50,612 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:12:50,612 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:50,612 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:12:50,613 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:12:50,613 INFO L87 Difference]: Start difference. First operand 3959 states and 8124 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:51,797 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:12:51,980 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:12:52,171 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:12:52,386 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:12:52,713 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:12:52,932 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:12:53,131 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2021-06-05 11:12:53,354 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:12:53,612 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:12:56,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:12:56,354 INFO L93 Difference]: Finished difference Result 6901 states and 14220 transitions. [2021-06-05 11:12:56,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:12:56,355 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:12:56,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:12:56,359 INFO L225 Difference]: With dead ends: 6901 [2021-06-05 11:12:56,359 INFO L226 Difference]: Without dead ends: 6901 [2021-06-05 11:12:56,360 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 4581.5ms TimeCoverageRelationStatistics Valid=1167, Invalid=5313, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:12:56,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6901 states. [2021-06-05 11:12:56,391 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6901 to 3979. [2021-06-05 11:12:56,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3979 states, 3976 states have (on average 2.0538229376257546) internal successors, (8166), 3978 states have internal predecessors, (8166), 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) [2021-06-05 11:12:56,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3979 states to 3979 states and 8166 transitions. [2021-06-05 11:12:56,397 INFO L78 Accepts]: Start accepts. Automaton has 3979 states and 8166 transitions. Word has length 88 [2021-06-05 11:12:56,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:12:56,397 INFO L482 AbstractCegarLoop]: Abstraction has 3979 states and 8166 transitions. [2021-06-05 11:12:56,397 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:56,398 INFO L276 IsEmpty]: Start isEmpty. Operand 3979 states and 8166 transitions. [2021-06-05 11:12:56,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:12:56,399 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:12:56,400 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:12:56,400 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable82 [2021-06-05 11:12:56,400 INFO L430 AbstractCegarLoop]: === Iteration 84 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:12:56,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:12:56,400 INFO L82 PathProgramCache]: Analyzing trace with hash -1061373898, now seen corresponding path program 68 times [2021-06-05 11:12:56,400 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:12:56,400 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382614245] [2021-06-05 11:12:56,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:12:56,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:12:57,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:12:57,190 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:12:57,190 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382614245] [2021-06-05 11:12:57,190 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1382614245] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:12:57,190 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:12:57,190 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:12:57,190 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684866386] [2021-06-05 11:12:57,190 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:12:57,190 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:12:57,190 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:12:57,191 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:12:57,191 INFO L87 Difference]: Start difference. First operand 3979 states and 8166 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:12:58,209 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-06-05 11:12:58,394 WARN L205 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2021-06-05 11:12:58,594 WARN L205 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 67 [2021-06-05 11:12:58,796 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:12:59,016 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-06-05 11:12:59,355 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 71 [2021-06-05 11:12:59,615 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 73 [2021-06-05 11:12:59,839 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:13:00,059 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:13:02,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:02,663 INFO L93 Difference]: Finished difference Result 6179 states and 12719 transitions. [2021-06-05 11:13:02,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:13:02,663 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:02,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:02,667 INFO L225 Difference]: With dead ends: 6179 [2021-06-05 11:13:02,667 INFO L226 Difference]: Without dead ends: 6179 [2021-06-05 11:13:02,668 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4423.8ms TimeCoverageRelationStatistics Valid=1049, Invalid=4957, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:13:02,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6179 states. [2021-06-05 11:13:02,698 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6179 to 3977. [2021-06-05 11:13:02,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3977 states, 3974 states have (on average 2.053850025163563) internal successors, (8162), 3976 states have internal predecessors, (8162), 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) [2021-06-05 11:13:02,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3977 states to 3977 states and 8162 transitions. [2021-06-05 11:13:02,704 INFO L78 Accepts]: Start accepts. Automaton has 3977 states and 8162 transitions. Word has length 88 [2021-06-05 11:13:02,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:02,704 INFO L482 AbstractCegarLoop]: Abstraction has 3977 states and 8162 transitions. [2021-06-05 11:13:02,704 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:02,704 INFO L276 IsEmpty]: Start isEmpty. Operand 3977 states and 8162 transitions. [2021-06-05 11:13:02,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:02,706 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:02,706 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:02,706 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable83 [2021-06-05 11:13:02,706 INFO L430 AbstractCegarLoop]: === Iteration 85 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:02,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:02,706 INFO L82 PathProgramCache]: Analyzing trace with hash -1717388652, now seen corresponding path program 69 times [2021-06-05 11:13:02,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:02,707 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1970493535] [2021-06-05 11:13:02,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:02,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:03,521 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:03,521 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:03,521 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1970493535] [2021-06-05 11:13:03,521 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1970493535] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:03,521 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:03,522 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:13:03,522 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399770954] [2021-06-05 11:13:03,522 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:13:03,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:03,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:13:03,522 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:13:03,522 INFO L87 Difference]: Start difference. First operand 3977 states and 8162 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:04,555 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 59 [2021-06-05 11:13:04,745 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 63 [2021-06-05 11:13:04,946 WARN L205 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 67 [2021-06-05 11:13:05,150 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 69 [2021-06-05 11:13:05,375 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 71 [2021-06-05 11:13:05,584 WARN L205 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 71 [2021-06-05 11:13:05,803 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2021-06-05 11:13:06,199 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 73 [2021-06-05 11:13:06,459 WARN L205 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 77 [2021-06-05 11:13:06,661 WARN L205 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:13:09,274 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:09,274 INFO L93 Difference]: Finished difference Result 6218 states and 12812 transitions. [2021-06-05 11:13:09,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:13:09,274 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:09,274 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:09,278 INFO L225 Difference]: With dead ends: 6218 [2021-06-05 11:13:09,278 INFO L226 Difference]: Without dead ends: 6218 [2021-06-05 11:13:09,279 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4714.8ms TimeCoverageRelationStatistics Valid=1092, Invalid=5070, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:13:09,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6218 states. [2021-06-05 11:13:09,311 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6218 to 3961. [2021-06-05 11:13:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3961 states, 3958 states have (on average 2.0535624052551795) internal successors, (8128), 3960 states have internal predecessors, (8128), 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) [2021-06-05 11:13:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3961 states to 3961 states and 8128 transitions. [2021-06-05 11:13:09,317 INFO L78 Accepts]: Start accepts. Automaton has 3961 states and 8128 transitions. Word has length 88 [2021-06-05 11:13:09,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:09,317 INFO L482 AbstractCegarLoop]: Abstraction has 3961 states and 8128 transitions. [2021-06-05 11:13:09,318 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:09,318 INFO L276 IsEmpty]: Start isEmpty. Operand 3961 states and 8128 transitions. [2021-06-05 11:13:09,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:09,320 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:09,320 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:09,320 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable84 [2021-06-05 11:13:09,320 INFO L430 AbstractCegarLoop]: === Iteration 86 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:09,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:09,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1828600916, now seen corresponding path program 70 times [2021-06-05 11:13:09,320 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:09,320 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2062813655] [2021-06-05 11:13:09,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:09,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:10,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:10,211 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:10,211 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2062813655] [2021-06-05 11:13:10,211 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2062813655] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:10,211 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:10,211 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:13:10,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310495680] [2021-06-05 11:13:10,212 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:13:10,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:10,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:13:10,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:13:10,212 INFO L87 Difference]: Start difference. First operand 3961 states and 8128 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:11,276 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 59 [2021-06-05 11:13:11,470 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 63 [2021-06-05 11:13:11,666 WARN L205 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 67 [2021-06-05 11:13:11,917 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 69 [2021-06-05 11:13:12,111 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 71 [2021-06-05 11:13:12,326 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 73 [2021-06-05 11:13:12,732 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 73 [2021-06-05 11:13:12,970 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 77 [2021-06-05 11:13:13,171 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:13:15,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:15,935 INFO L93 Difference]: Finished difference Result 6050 states and 12459 transitions. [2021-06-05 11:13:15,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:13:15,935 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:15,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:15,939 INFO L225 Difference]: With dead ends: 6050 [2021-06-05 11:13:15,939 INFO L226 Difference]: Without dead ends: 6050 [2021-06-05 11:13:15,940 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4509.1ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:13:15,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6050 states. [2021-06-05 11:13:15,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6050 to 3956. [2021-06-05 11:13:15,984 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3953 states have (on average 2.05363015431318) internal successors, (8118), 3955 states have internal predecessors, (8118), 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) [2021-06-05 11:13:15,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 8118 transitions. [2021-06-05 11:13:15,987 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 8118 transitions. Word has length 88 [2021-06-05 11:13:15,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:15,988 INFO L482 AbstractCegarLoop]: Abstraction has 3956 states and 8118 transitions. [2021-06-05 11:13:15,988 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:15,988 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 8118 transitions. [2021-06-05 11:13:15,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:15,990 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:15,990 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:15,990 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable85 [2021-06-05 11:13:15,990 INFO L430 AbstractCegarLoop]: === Iteration 87 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:15,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:15,990 INFO L82 PathProgramCache]: Analyzing trace with hash -1994405564, now seen corresponding path program 71 times [2021-06-05 11:13:15,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:15,990 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [498571764] [2021-06-05 11:13:15,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:15,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:16,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:16,873 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:16,873 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [498571764] [2021-06-05 11:13:16,873 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [498571764] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:16,873 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:16,873 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:13:16,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1621692747] [2021-06-05 11:13:16,874 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:13:16,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:16,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:13:16,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:13:16,874 INFO L87 Difference]: Start difference. First operand 3956 states and 8118 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:18,076 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:13:18,270 WARN L205 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:13:18,529 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:13:18,723 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:13:18,928 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:13:19,313 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:13:19,538 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:13:19,735 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:13:22,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:22,401 INFO L93 Difference]: Finished difference Result 6075 states and 12507 transitions. [2021-06-05 11:13:22,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:13:22,402 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:22,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:22,405 INFO L225 Difference]: With dead ends: 6075 [2021-06-05 11:13:22,406 INFO L226 Difference]: Without dead ends: 6075 [2021-06-05 11:13:22,406 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4467.4ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:13:22,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2021-06-05 11:13:22,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 3964. [2021-06-05 11:13:22,438 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3964 states, 3961 states have (on average 2.053521837919717) internal successors, (8134), 3963 states have internal predecessors, (8134), 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) [2021-06-05 11:13:22,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3964 states to 3964 states and 8134 transitions. [2021-06-05 11:13:22,441 INFO L78 Accepts]: Start accepts. Automaton has 3964 states and 8134 transitions. Word has length 88 [2021-06-05 11:13:22,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:22,441 INFO L482 AbstractCegarLoop]: Abstraction has 3964 states and 8134 transitions. [2021-06-05 11:13:22,442 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:22,442 INFO L276 IsEmpty]: Start isEmpty. Operand 3964 states and 8134 transitions. [2021-06-05 11:13:22,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:22,443 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:22,443 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:22,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable86 [2021-06-05 11:13:22,444 INFO L430 AbstractCegarLoop]: === Iteration 88 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:22,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:22,444 INFO L82 PathProgramCache]: Analyzing trace with hash -37580066, now seen corresponding path program 72 times [2021-06-05 11:13:22,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:22,444 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330865684] [2021-06-05 11:13:22,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:22,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:23,141 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:23,142 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:23,142 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330865684] [2021-06-05 11:13:23,142 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330865684] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:23,142 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:23,142 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:13:23,142 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925830182] [2021-06-05 11:13:23,142 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:13:23,142 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:23,142 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:13:23,142 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:13:23,143 INFO L87 Difference]: Start difference. First operand 3964 states and 8134 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:24,351 WARN L205 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:13:24,563 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:13:24,767 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:13:24,982 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:13:25,343 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:13:25,584 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:13:25,776 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:13:25,990 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:13:26,189 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:13:29,271 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:29,271 INFO L93 Difference]: Finished difference Result 7539 states and 15532 transitions. [2021-06-05 11:13:29,271 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:13:29,272 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:29,272 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:29,277 INFO L225 Difference]: With dead ends: 7539 [2021-06-05 11:13:29,277 INFO L226 Difference]: Without dead ends: 7539 [2021-06-05 11:13:29,277 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 4560.5ms TimeCoverageRelationStatistics Valid=1167, Invalid=5313, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:13:29,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7539 states. [2021-06-05 11:13:29,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7539 to 3984. [2021-06-05 11:13:29,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3984 states, 3981 states have (on average 2.0537553378548106) internal successors, (8176), 3983 states have internal predecessors, (8176), 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) [2021-06-05 11:13:29,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3984 states to 3984 states and 8176 transitions. [2021-06-05 11:13:29,319 INFO L78 Accepts]: Start accepts. Automaton has 3984 states and 8176 transitions. Word has length 88 [2021-06-05 11:13:29,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:29,319 INFO L482 AbstractCegarLoop]: Abstraction has 3984 states and 8176 transitions. [2021-06-05 11:13:29,319 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:29,319 INFO L276 IsEmpty]: Start isEmpty. Operand 3984 states and 8176 transitions. [2021-06-05 11:13:29,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:29,321 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:29,321 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:29,321 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable87 [2021-06-05 11:13:29,321 INFO L430 AbstractCegarLoop]: === Iteration 89 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:29,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:29,321 INFO L82 PathProgramCache]: Analyzing trace with hash -697457464, now seen corresponding path program 73 times [2021-06-05 11:13:29,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:29,321 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678415242] [2021-06-05 11:13:29,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:29,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:30,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:30,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:30,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678415242] [2021-06-05 11:13:30,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678415242] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:30,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:30,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:13:30,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202810596] [2021-06-05 11:13:30,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:13:30,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:30,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:13:30,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:13:30,129 INFO L87 Difference]: Start difference. First operand 3984 states and 8176 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:31,293 WARN L205 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:13:31,500 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:13:31,697 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:13:31,918 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:13:32,263 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:13:32,507 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:13:32,729 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:13:32,933 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:13:33,871 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:13:35,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:35,926 INFO L93 Difference]: Finished difference Result 6051 states and 12444 transitions. [2021-06-05 11:13:35,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:13:35,926 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:35,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:35,932 INFO L225 Difference]: With dead ends: 6051 [2021-06-05 11:13:35,932 INFO L226 Difference]: Without dead ends: 6051 [2021-06-05 11:13:35,932 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4641.4ms TimeCoverageRelationStatistics Valid=1049, Invalid=4957, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:13:35,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6051 states. [2021-06-05 11:13:35,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6051 to 3982. [2021-06-05 11:13:35,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3982 states, 3979 states have (on average 2.053782357376225) internal successors, (8172), 3981 states have internal predecessors, (8172), 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) [2021-06-05 11:13:35,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3982 states to 3982 states and 8172 transitions. [2021-06-05 11:13:35,971 INFO L78 Accepts]: Start accepts. Automaton has 3982 states and 8172 transitions. Word has length 88 [2021-06-05 11:13:35,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:35,971 INFO L482 AbstractCegarLoop]: Abstraction has 3982 states and 8172 transitions. [2021-06-05 11:13:35,971 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:35,971 INFO L276 IsEmpty]: Start isEmpty. Operand 3982 states and 8172 transitions. [2021-06-05 11:13:35,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:35,973 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:35,973 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:35,973 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable88 [2021-06-05 11:13:35,973 INFO L430 AbstractCegarLoop]: === Iteration 90 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:35,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:35,974 INFO L82 PathProgramCache]: Analyzing trace with hash -421468500, now seen corresponding path program 74 times [2021-06-05 11:13:35,974 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:35,974 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [107055474] [2021-06-05 11:13:35,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:35,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:36,764 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:36,764 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:36,764 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [107055474] [2021-06-05 11:13:36,764 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [107055474] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:36,764 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:36,764 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:13:36,764 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035466949] [2021-06-05 11:13:36,764 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:13:36,764 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:36,765 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:13:36,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:13:36,765 INFO L87 Difference]: Start difference. First operand 3982 states and 8172 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:37,937 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:13:38,155 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:13:38,356 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:13:38,576 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:13:38,770 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:13:38,983 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:13:39,394 WARN L205 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:13:39,652 WARN L205 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:13:39,863 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:13:40,775 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:13:42,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:42,817 INFO L93 Difference]: Finished difference Result 6075 states and 12507 transitions. [2021-06-05 11:13:42,818 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:13:42,818 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:42,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:42,822 INFO L225 Difference]: With dead ends: 6075 [2021-06-05 11:13:42,822 INFO L226 Difference]: Without dead ends: 6075 [2021-06-05 11:13:42,822 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4863.1ms TimeCoverageRelationStatistics Valid=1092, Invalid=5070, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:13:42,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6075 states. [2021-06-05 11:13:42,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6075 to 3966. [2021-06-05 11:13:42,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3963 states have (on average 2.053494827151148) internal successors, (8138), 3965 states have internal predecessors, (8138), 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) [2021-06-05 11:13:42,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 8138 transitions. [2021-06-05 11:13:42,856 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 8138 transitions. Word has length 88 [2021-06-05 11:13:42,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:42,856 INFO L482 AbstractCegarLoop]: Abstraction has 3966 states and 8138 transitions. [2021-06-05 11:13:42,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:13:42,857 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 8138 transitions. [2021-06-05 11:13:42,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:42,858 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:42,858 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:42,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable89 [2021-06-05 11:13:42,859 INFO L430 AbstractCegarLoop]: === Iteration 91 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:42,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:42,859 INFO L82 PathProgramCache]: Analyzing trace with hash -725445996, now seen corresponding path program 75 times [2021-06-05 11:13:42,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:42,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [280893436] [2021-06-05 11:13:42,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:42,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:43,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:43,731 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:43,731 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [280893436] [2021-06-05 11:13:43,731 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [280893436] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:43,731 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:43,731 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:13:43,731 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1212680008] [2021-06-05 11:13:43,731 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:13:43,731 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:43,731 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:13:43,731 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:13:43,732 INFO L87 Difference]: Start difference. First operand 3966 states and 8138 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:44,898 WARN L205 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:13:45,110 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:13:45,342 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:13:45,534 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:13:45,757 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:13:46,143 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:13:46,380 WARN L205 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:13:46,579 WARN L205 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:13:49,199 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:49,199 INFO L93 Difference]: Finished difference Result 6210 states and 12792 transitions. [2021-06-05 11:13:49,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:13:49,199 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:49,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:49,203 INFO L225 Difference]: With dead ends: 6210 [2021-06-05 11:13:49,203 INFO L226 Difference]: Without dead ends: 6210 [2021-06-05 11:13:49,204 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4493.7ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:13:49,210 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6210 states. [2021-06-05 11:13:49,235 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6210 to 3960. [2021-06-05 11:13:49,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 3957 states have (on average 2.0535759413697243) internal successors, (8126), 3959 states have internal predecessors, (8126), 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) [2021-06-05 11:13:49,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 8126 transitions. [2021-06-05 11:13:49,242 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 8126 transitions. Word has length 88 [2021-06-05 11:13:49,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:49,242 INFO L482 AbstractCegarLoop]: Abstraction has 3960 states and 8126 transitions. [2021-06-05 11:13:49,242 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:49,242 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 8126 transitions. [2021-06-05 11:13:49,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:49,244 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:49,244 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:49,244 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable90 [2021-06-05 11:13:49,244 INFO L430 AbstractCegarLoop]: === Iteration 92 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:49,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:49,245 INFO L82 PathProgramCache]: Analyzing trace with hash -25242202, now seen corresponding path program 76 times [2021-06-05 11:13:49,245 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:49,245 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591365470] [2021-06-05 11:13:49,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:49,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:50,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:50,147 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:50,148 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591365470] [2021-06-05 11:13:50,148 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1591365470] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:50,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:50,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:13:50,148 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [349273510] [2021-06-05 11:13:50,148 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:13:50,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:50,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:13:50,148 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:13:50,149 INFO L87 Difference]: Start difference. First operand 3960 states and 8126 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:51,626 WARN L205 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 65 [2021-06-05 11:13:51,882 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:13:52,084 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 71 [2021-06-05 11:13:52,303 WARN L205 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:13:52,711 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 77 [2021-06-05 11:13:52,953 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 80 [2021-06-05 11:13:53,153 WARN L205 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:13:55,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:13:55,934 INFO L93 Difference]: Finished difference Result 5721 states and 11767 transitions. [2021-06-05 11:13:55,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:13:55,935 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:13:55,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:13:55,939 INFO L225 Difference]: With dead ends: 5721 [2021-06-05 11:13:55,939 INFO L226 Difference]: Without dead ends: 5721 [2021-06-05 11:13:55,939 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4595.8ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:13:55,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5721 states. [2021-06-05 11:13:55,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5721 to 3954. [2021-06-05 11:13:55,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3954 states, 3951 states have (on average 2.0536573019488737) internal successors, (8114), 3953 states have internal predecessors, (8114), 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) [2021-06-05 11:13:55,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3954 states to 3954 states and 8114 transitions. [2021-06-05 11:13:55,975 INFO L78 Accepts]: Start accepts. Automaton has 3954 states and 8114 transitions. Word has length 88 [2021-06-05 11:13:55,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:13:55,975 INFO L482 AbstractCegarLoop]: Abstraction has 3954 states and 8114 transitions. [2021-06-05 11:13:55,975 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:55,976 INFO L276 IsEmpty]: Start isEmpty. Operand 3954 states and 8114 transitions. [2021-06-05 11:13:55,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:13:55,977 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:13:55,978 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:13:55,978 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable91 [2021-06-05 11:13:55,978 INFO L430 AbstractCegarLoop]: === Iteration 93 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:13:55,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:13:55,978 INFO L82 PathProgramCache]: Analyzing trace with hash 1739601378, now seen corresponding path program 77 times [2021-06-05 11:13:55,978 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:13:55,978 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [195132644] [2021-06-05 11:13:55,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:13:55,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:13:56,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:13:56,904 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:13:56,904 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [195132644] [2021-06-05 11:13:56,904 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [195132644] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:13:56,904 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:13:56,904 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:13:56,904 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139430963] [2021-06-05 11:13:56,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:13:56,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:13:56,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:13:56,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:13:56,905 INFO L87 Difference]: Start difference. First operand 3954 states and 8114 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:13:57,944 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 59 [2021-06-05 11:13:58,096 WARN L205 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 11:13:58,295 WARN L205 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 65 [2021-06-05 11:13:58,534 WARN L205 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:13:58,725 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-06-05 11:13:58,927 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2021-06-05 11:13:59,276 WARN L205 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:13:59,495 WARN L205 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-06-05 11:13:59,689 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:14:02,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:02,270 INFO L93 Difference]: Finished difference Result 5439 states and 11185 transitions. [2021-06-05 11:14:02,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:14:02,270 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:02,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:02,274 INFO L225 Difference]: With dead ends: 5439 [2021-06-05 11:14:02,274 INFO L226 Difference]: Without dead ends: 5439 [2021-06-05 11:14:02,274 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4498.8ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:14:02,279 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5439 states. [2021-06-05 11:14:02,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5439 to 3960. [2021-06-05 11:14:02,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3960 states, 3957 states have (on average 2.0535759413697243) internal successors, (8126), 3959 states have internal predecessors, (8126), 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) [2021-06-05 11:14:02,308 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3960 states to 3960 states and 8126 transitions. [2021-06-05 11:14:02,308 INFO L78 Accepts]: Start accepts. Automaton has 3960 states and 8126 transitions. Word has length 88 [2021-06-05 11:14:02,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:02,308 INFO L482 AbstractCegarLoop]: Abstraction has 3960 states and 8126 transitions. [2021-06-05 11:14:02,308 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:14:02,309 INFO L276 IsEmpty]: Start isEmpty. Operand 3960 states and 8126 transitions. [2021-06-05 11:14:02,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:02,310 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:02,310 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:02,311 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable92 [2021-06-05 11:14:02,311 INFO L430 AbstractCegarLoop]: === Iteration 94 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:02,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:02,311 INFO L82 PathProgramCache]: Analyzing trace with hash -598540420, now seen corresponding path program 78 times [2021-06-05 11:14:02,311 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:02,311 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [810041215] [2021-06-05 11:14:02,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:02,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:03,006 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:03,006 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:03,006 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [810041215] [2021-06-05 11:14:03,006 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [810041215] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:03,006 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:03,006 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:14:03,006 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612367432] [2021-06-05 11:14:03,007 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:14:03,007 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:03,007 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:14:03,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:14:03,007 INFO L87 Difference]: Start difference. First operand 3960 states and 8126 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:04,217 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:14:04,434 WARN L205 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:14:04,625 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:14:04,833 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 74 [2021-06-05 11:14:05,177 WARN L205 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:14:05,401 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 77 [2021-06-05 11:14:05,603 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:14:05,819 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 79 [2021-06-05 11:14:06,017 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:14:09,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:09,110 INFO L93 Difference]: Finished difference Result 7223 states and 14882 transitions. [2021-06-05 11:14:09,111 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:14:09,111 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:09,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:09,117 INFO L225 Difference]: With dead ends: 7223 [2021-06-05 11:14:09,117 INFO L226 Difference]: Without dead ends: 7223 [2021-06-05 11:14:09,117 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 4594.0ms TimeCoverageRelationStatistics Valid=1167, Invalid=5313, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:14:09,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7223 states. [2021-06-05 11:14:09,152 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7223 to 3980. [2021-06-05 11:14:09,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3980 states, 3977 states have (on average 2.053809404073422) internal successors, (8168), 3979 states have internal predecessors, (8168), 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) [2021-06-05 11:14:09,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3980 states to 3980 states and 8168 transitions. [2021-06-05 11:14:09,158 INFO L78 Accepts]: Start accepts. Automaton has 3980 states and 8168 transitions. Word has length 88 [2021-06-05 11:14:09,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:09,158 INFO L482 AbstractCegarLoop]: Abstraction has 3980 states and 8168 transitions. [2021-06-05 11:14:09,158 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3980 states and 8168 transitions. [2021-06-05 11:14:09,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:09,160 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:09,160 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:09,160 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable93 [2021-06-05 11:14:09,160 INFO L430 AbstractCegarLoop]: === Iteration 95 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:09,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:09,160 INFO L82 PathProgramCache]: Analyzing trace with hash -1258417818, now seen corresponding path program 79 times [2021-06-05 11:14:09,161 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:09,161 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1130868760] [2021-06-05 11:14:09,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:09,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:09,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:09,967 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:09,967 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1130868760] [2021-06-05 11:14:09,967 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1130868760] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:09,967 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:09,967 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:14:09,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2043675577] [2021-06-05 11:14:09,967 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:14:09,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:09,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:14:09,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:14:09,968 INFO L87 Difference]: Start difference. First operand 3980 states and 8168 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:11,199 WARN L205 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:14:11,431 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:14:11,630 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:14:11,844 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:14:12,184 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 75 [2021-06-05 11:14:12,457 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 120 DAG size of output: 78 [2021-06-05 11:14:12,686 WARN L205 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 123 DAG size of output: 81 [2021-06-05 11:14:12,910 WARN L205 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 77 [2021-06-05 11:14:13,865 WARN L205 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:14:16,048 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:16,048 INFO L93 Difference]: Finished difference Result 5735 states and 11794 transitions. [2021-06-05 11:14:16,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:14:16,048 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:16,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:16,052 INFO L225 Difference]: With dead ends: 5735 [2021-06-05 11:14:16,052 INFO L226 Difference]: Without dead ends: 5735 [2021-06-05 11:14:16,053 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4715.4ms TimeCoverageRelationStatistics Valid=1049, Invalid=4957, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:14:16,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5735 states. [2021-06-05 11:14:16,083 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5735 to 3978. [2021-06-05 11:14:16,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3978 states, 3975 states have (on average 2.053836477987421) internal successors, (8164), 3977 states have internal predecessors, (8164), 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) [2021-06-05 11:14:16,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3978 states to 3978 states and 8164 transitions. [2021-06-05 11:14:16,089 INFO L78 Accepts]: Start accepts. Automaton has 3978 states and 8164 transitions. Word has length 88 [2021-06-05 11:14:16,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:16,089 INFO L482 AbstractCegarLoop]: Abstraction has 3978 states and 8164 transitions. [2021-06-05 11:14:16,089 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:16,089 INFO L276 IsEmpty]: Start isEmpty. Operand 3978 states and 8164 transitions. [2021-06-05 11:14:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:16,091 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:16,091 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:16,092 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable94 [2021-06-05 11:14:16,092 INFO L430 AbstractCegarLoop]: === Iteration 96 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:16,092 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:16,092 INFO L82 PathProgramCache]: Analyzing trace with hash -982428854, now seen corresponding path program 80 times [2021-06-05 11:14:16,092 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:16,092 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1488198250] [2021-06-05 11:14:16,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:16,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:16,879 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:16,879 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:16,879 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1488198250] [2021-06-05 11:14:16,879 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1488198250] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:16,879 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:16,880 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:14:16,880 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1975949763] [2021-06-05 11:14:16,880 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:14:16,880 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:16,880 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:14:16,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:14:16,880 INFO L87 Difference]: Start difference. First operand 3978 states and 8164 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:18,090 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 63 [2021-06-05 11:14:18,306 WARN L205 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 67 [2021-06-05 11:14:18,530 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 70 [2021-06-05 11:14:18,744 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 75 [2021-06-05 11:14:18,935 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:14:19,157 WARN L205 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 75 [2021-06-05 11:14:19,593 WARN L205 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 78 [2021-06-05 11:14:19,840 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 125 DAG size of output: 81 [2021-06-05 11:14:20,052 WARN L205 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 116 DAG size of output: 77 [2021-06-05 11:14:20,853 WARN L205 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 66 [2021-06-05 11:14:20,996 WARN L205 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 69 [2021-06-05 11:14:23,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:23,120 INFO L93 Difference]: Finished difference Result 5759 states and 11857 transitions. [2021-06-05 11:14:23,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:14:23,120 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:23,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:23,124 INFO L225 Difference]: With dead ends: 5759 [2021-06-05 11:14:23,124 INFO L226 Difference]: Without dead ends: 5759 [2021-06-05 11:14:23,125 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4921.4ms TimeCoverageRelationStatistics Valid=1092, Invalid=5070, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:14:23,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5759 states. [2021-06-05 11:14:23,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5759 to 3962. [2021-06-05 11:14:23,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3962 states, 3959 states have (on average 2.0535488759787826) internal successors, (8130), 3961 states have internal predecessors, (8130), 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) [2021-06-05 11:14:23,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3962 states to 3962 states and 8130 transitions. [2021-06-05 11:14:23,161 INFO L78 Accepts]: Start accepts. Automaton has 3962 states and 8130 transitions. Word has length 88 [2021-06-05 11:14:23,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:23,161 INFO L482 AbstractCegarLoop]: Abstraction has 3962 states and 8130 transitions. [2021-06-05 11:14:23,161 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:23,161 INFO L276 IsEmpty]: Start isEmpty. Operand 3962 states and 8130 transitions. [2021-06-05 11:14:23,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:23,163 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:23,163 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:23,163 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable95 [2021-06-05 11:14:23,163 INFO L430 AbstractCegarLoop]: === Iteration 97 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:23,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:23,164 INFO L82 PathProgramCache]: Analyzing trace with hash -1286406350, now seen corresponding path program 81 times [2021-06-05 11:14:23,164 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:23,164 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327080363] [2021-06-05 11:14:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:23,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:24,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:24,068 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:24,068 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327080363] [2021-06-05 11:14:24,068 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327080363] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:24,068 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:24,068 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:14:24,068 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [123960906] [2021-06-05 11:14:24,068 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:14:24,068 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:24,069 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:14:24,069 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:14:24,069 INFO L87 Difference]: Start difference. First operand 3962 states and 8130 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:14:25,277 WARN L205 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 63 [2021-06-05 11:14:25,501 WARN L205 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 67 [2021-06-05 11:14:25,737 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:14:25,927 WARN L205 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 71 [2021-06-05 11:14:26,144 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 76 [2021-06-05 11:14:26,556 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 73 [2021-06-05 11:14:26,789 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 80 [2021-06-05 11:14:26,981 WARN L205 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:14:29,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:29,843 INFO L93 Difference]: Finished difference Result 5744 states and 11827 transitions. [2021-06-05 11:14:29,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:14:29,844 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:29,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:29,848 INFO L225 Difference]: With dead ends: 5744 [2021-06-05 11:14:29,848 INFO L226 Difference]: Without dead ends: 5744 [2021-06-05 11:14:29,848 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1011 ImplicationChecksByTransitivity, 4486.2ms TimeCoverageRelationStatistics Valid=1068, Invalid=5094, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:14:29,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5744 states. [2021-06-05 11:14:29,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5744 to 3956. [2021-06-05 11:14:29,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3956 states, 3953 states have (on average 2.05363015431318) internal successors, (8118), 3955 states have internal predecessors, (8118), 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) [2021-06-05 11:14:29,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3956 states to 3956 states and 8118 transitions. [2021-06-05 11:14:29,884 INFO L78 Accepts]: Start accepts. Automaton has 3956 states and 8118 transitions. Word has length 88 [2021-06-05 11:14:29,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:29,885 INFO L482 AbstractCegarLoop]: Abstraction has 3956 states and 8118 transitions. [2021-06-05 11:14:29,885 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:14:29,885 INFO L276 IsEmpty]: Start isEmpty. Operand 3956 states and 8118 transitions. [2021-06-05 11:14:29,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:29,887 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:29,887 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:29,887 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable96 [2021-06-05 11:14:29,887 INFO L430 AbstractCegarLoop]: === Iteration 98 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:29,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:29,887 INFO L82 PathProgramCache]: Analyzing trace with hash -920721382, now seen corresponding path program 82 times [2021-06-05 11:14:29,887 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:29,887 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [717964197] [2021-06-05 11:14:29,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:29,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:30,627 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:30,627 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [717964197] [2021-06-05 11:14:30,627 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [717964197] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:30,627 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:30,627 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:14:30,627 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455279156] [2021-06-05 11:14:30,627 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:14:30,627 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:30,628 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:14:30,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:14:30,628 INFO L87 Difference]: Start difference. First operand 3956 states and 8118 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:31,847 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:14:32,037 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:14:32,234 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 69 [2021-06-05 11:14:32,441 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 73 [2021-06-05 11:14:32,759 WARN L205 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 74 [2021-06-05 11:14:32,983 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 76 [2021-06-05 11:14:33,199 WARN L205 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 72 [2021-06-05 11:14:33,440 WARN L205 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 127 DAG size of output: 78 [2021-06-05 11:14:33,710 WARN L205 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 74 [2021-06-05 11:14:36,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:36,654 INFO L93 Difference]: Finished difference Result 6744 states and 13906 transitions. [2021-06-05 11:14:36,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2021-06-05 11:14:36,654 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:36,654 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:36,660 INFO L225 Difference]: With dead ends: 6744 [2021-06-05 11:14:36,660 INFO L226 Difference]: Without dead ends: 6744 [2021-06-05 11:14:36,660 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 4691.0ms TimeCoverageRelationStatistics Valid=1167, Invalid=5313, Unknown=0, NotChecked=0, Total=6480 [2021-06-05 11:14:36,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6744 states. [2021-06-05 11:14:36,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6744 to 3983. [2021-06-05 11:14:36,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3983 states, 3980 states have (on average 2.0540201005025125) internal successors, (8175), 3982 states have internal predecessors, (8175), 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) [2021-06-05 11:14:36,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3983 states to 3983 states and 8175 transitions. [2021-06-05 11:14:36,702 INFO L78 Accepts]: Start accepts. Automaton has 3983 states and 8175 transitions. Word has length 88 [2021-06-05 11:14:36,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:36,702 INFO L482 AbstractCegarLoop]: Abstraction has 3983 states and 8175 transitions. [2021-06-05 11:14:36,702 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:36,702 INFO L276 IsEmpty]: Start isEmpty. Operand 3983 states and 8175 transitions. [2021-06-05 11:14:36,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:36,704 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:36,704 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:36,704 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable97 [2021-06-05 11:14:36,704 INFO L430 AbstractCegarLoop]: === Iteration 99 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:36,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:36,705 INFO L82 PathProgramCache]: Analyzing trace with hash -73241382, now seen corresponding path program 83 times [2021-06-05 11:14:36,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:36,705 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [590265227] [2021-06-05 11:14:36,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:36,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:37,622 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:37,622 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:37,622 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [590265227] [2021-06-05 11:14:37,622 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [590265227] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:37,623 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:37,623 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:14:37,623 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [528390691] [2021-06-05 11:14:37,623 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:14:37,623 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:37,623 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:14:37,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:14:37,623 INFO L87 Difference]: Start difference. First operand 3983 states and 8175 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:38,629 WARN L205 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 55 [2021-06-05 11:14:38,803 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-06-05 11:14:39,017 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 63 [2021-06-05 11:14:39,228 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2021-06-05 11:14:39,456 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-06-05 11:14:39,721 WARN L205 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-06-05 11:14:40,086 WARN L205 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 71 [2021-06-05 11:14:40,414 WARN L205 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 119 DAG size of output: 73 [2021-06-05 11:14:40,633 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 122 DAG size of output: 77 [2021-06-05 11:14:40,845 WARN L205 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 75 [2021-06-05 11:14:43,394 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:43,395 INFO L93 Difference]: Finished difference Result 6022 states and 12405 transitions. [2021-06-05 11:14:43,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2021-06-05 11:14:43,395 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:43,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:43,399 INFO L225 Difference]: With dead ends: 6022 [2021-06-05 11:14:43,400 INFO L226 Difference]: Without dead ends: 6022 [2021-06-05 11:14:43,400 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 76 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 990 ImplicationChecksByTransitivity, 4810.2ms TimeCoverageRelationStatistics Valid=1049, Invalid=4957, Unknown=0, NotChecked=0, Total=6006 [2021-06-05 11:14:43,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6022 states. [2021-06-05 11:14:43,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6022 to 3981. [2021-06-05 11:14:43,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3981 states, 3978 states have (on average 2.0540472599296127) internal successors, (8171), 3980 states have internal predecessors, (8171), 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) [2021-06-05 11:14:43,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3981 states to 3981 states and 8171 transitions. [2021-06-05 11:14:43,439 INFO L78 Accepts]: Start accepts. Automaton has 3981 states and 8171 transitions. Word has length 88 [2021-06-05 11:14:43,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:43,439 INFO L482 AbstractCegarLoop]: Abstraction has 3981 states and 8171 transitions. [2021-06-05 11:14:43,439 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:43,439 INFO L276 IsEmpty]: Start isEmpty. Operand 3981 states and 8171 transitions. [2021-06-05 11:14:43,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:43,441 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:43,441 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:43,441 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable98 [2021-06-05 11:14:43,441 INFO L430 AbstractCegarLoop]: === Iteration 100 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:43,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:43,441 INFO L82 PathProgramCache]: Analyzing trace with hash -729256136, now seen corresponding path program 84 times [2021-06-05 11:14:43,441 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:43,441 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1433555573] [2021-06-05 11:14:43,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:43,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:44,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:44,235 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:44,235 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1433555573] [2021-06-05 11:14:44,235 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1433555573] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:44,235 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:44,235 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [34] imperfect sequences [] total 34 [2021-06-05 11:14:44,235 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [976611238] [2021-06-05 11:14:44,235 INFO L462 AbstractCegarLoop]: Interpolant automaton has 34 states [2021-06-05 11:14:44,235 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:44,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2021-06-05 11:14:44,236 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=1045, Unknown=0, NotChecked=0, Total=1122 [2021-06-05 11:14:44,236 INFO L87 Difference]: Start difference. First operand 3981 states and 8171 transitions. Second operand has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:45,253 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 59 [2021-06-05 11:14:45,437 WARN L205 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 63 [2021-06-05 11:14:45,617 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 65 [2021-06-05 11:14:45,814 WARN L205 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 69 [2021-06-05 11:14:46,026 WARN L205 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 71 [2021-06-05 11:14:46,229 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 114 DAG size of output: 71 [2021-06-05 11:14:46,452 WARN L205 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 73 [2021-06-05 11:14:46,830 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 73 [2021-06-05 11:14:47,062 WARN L205 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 77 [2021-06-05 11:14:47,270 WARN L205 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 75 [2021-06-05 11:14:48,764 WARN L205 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-06-05 11:14:49,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:49,882 INFO L93 Difference]: Finished difference Result 5926 states and 12213 transitions. [2021-06-05 11:14:49,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2021-06-05 11:14:49,883 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:49,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:49,887 INFO L225 Difference]: With dead ends: 5926 [2021-06-05 11:14:49,887 INFO L226 Difference]: Without dead ends: 5926 [2021-06-05 11:14:49,887 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 77 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1012 ImplicationChecksByTransitivity, 4698.0ms TimeCoverageRelationStatistics Valid=1092, Invalid=5070, Unknown=0, NotChecked=0, Total=6162 [2021-06-05 11:14:49,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5926 states. [2021-06-05 11:14:49,918 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5926 to 3965. [2021-06-05 11:14:49,921 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3965 states, 3962 states have (on average 2.0537607269056033) internal successors, (8137), 3964 states have internal predecessors, (8137), 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) [2021-06-05 11:14:49,924 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3965 states to 3965 states and 8137 transitions. [2021-06-05 11:14:49,925 INFO L78 Accepts]: Start accepts. Automaton has 3965 states and 8137 transitions. Word has length 88 [2021-06-05 11:14:49,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:49,925 INFO L482 AbstractCegarLoop]: Abstraction has 3965 states and 8137 transitions. [2021-06-05 11:14:49,925 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 34 states, 34 states have (on average 2.588235294117647) internal successors, (88), 34 states have internal predecessors, (88), 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) [2021-06-05 11:14:49,925 INFO L276 IsEmpty]: Start isEmpty. Operand 3965 states and 8137 transitions. [2021-06-05 11:14:49,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:49,927 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:49,927 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:49,927 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable99 [2021-06-05 11:14:49,927 INFO L430 AbstractCegarLoop]: === Iteration 101 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:49,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:49,927 INFO L82 PathProgramCache]: Analyzing trace with hash 443431706, now seen corresponding path program 85 times [2021-06-05 11:14:49,927 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:49,927 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [596886586] [2021-06-05 11:14:49,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:49,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:50,747 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:50,747 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:50,748 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [596886586] [2021-06-05 11:14:50,748 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [596886586] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:50,748 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:50,748 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:14:50,748 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585854217] [2021-06-05 11:14:50,748 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:14:50,748 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:50,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:14:50,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:14:50,749 INFO L87 Difference]: Start difference. First operand 3965 states and 8137 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:14:51,952 WARN L205 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:14:52,129 WARN L205 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:14:52,325 WARN L205 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:14:52,606 WARN L205 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 [2021-06-05 11:14:52,807 WARN L205 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 113 DAG size of output: 72 [2021-06-05 11:14:53,022 WARN L205 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 68 [2021-06-05 11:14:53,249 WARN L205 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 121 DAG size of output: 80 [2021-06-05 11:14:53,459 WARN L205 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 112 DAG size of output: 76 [2021-06-05 11:14:53,748 WARN L205 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 124 DAG size of output: 83 [2021-06-05 11:14:54,028 WARN L205 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 79 [2021-06-05 11:14:57,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 11:14:57,167 INFO L93 Difference]: Finished difference Result 7383 states and 15210 transitions. [2021-06-05 11:14:57,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 53 states. [2021-06-05 11:14:57,167 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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 88 [2021-06-05 11:14:57,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 11:14:57,172 INFO L225 Difference]: With dead ends: 7383 [2021-06-05 11:14:57,172 INFO L226 Difference]: Without dead ends: 7383 [2021-06-05 11:14:57,173 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 83 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1220 ImplicationChecksByTransitivity, 5242.8ms TimeCoverageRelationStatistics Valid=1304, Invalid=5836, Unknown=0, NotChecked=0, Total=7140 [2021-06-05 11:14:57,179 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7383 states. [2021-06-05 11:14:57,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7383 to 3966. [2021-06-05 11:14:57,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3966 states, 3963 states have (on average 2.0537471612414837) internal successors, (8139), 3965 states have internal predecessors, (8139), 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) [2021-06-05 11:14:57,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3966 states to 3966 states and 8139 transitions. [2021-06-05 11:14:57,215 INFO L78 Accepts]: Start accepts. Automaton has 3966 states and 8139 transitions. Word has length 88 [2021-06-05 11:14:57,216 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 11:14:57,216 INFO L482 AbstractCegarLoop]: Abstraction has 3966 states and 8139 transitions. [2021-06-05 11:14:57,216 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:14:57,216 INFO L276 IsEmpty]: Start isEmpty. Operand 3966 states and 8139 transitions. [2021-06-05 11:14:57,218 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2021-06-05 11:14:57,218 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 11:14:57,218 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 11:14:57,218 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable100 [2021-06-05 11:14:57,218 INFO L430 AbstractCegarLoop]: === Iteration 102 === [reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr0ASSERT_VIOLATIONERROR_FUNCTION, reader_fnErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, reader_fnErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-06-05 11:14:57,218 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 11:14:57,218 INFO L82 PathProgramCache]: Analyzing trace with hash -2102670460, now seen corresponding path program 86 times [2021-06-05 11:14:57,218 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 11:14:57,218 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [786746364] [2021-06-05 11:14:57,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 11:14:57,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 11:14:58,100 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 11:14:58,100 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 11:14:58,100 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [786746364] [2021-06-05 11:14:58,100 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [786746364] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 11:14:58,100 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 11:14:58,100 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [35] imperfect sequences [] total 35 [2021-06-05 11:14:58,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [80520411] [2021-06-05 11:14:58,101 INFO L462 AbstractCegarLoop]: Interpolant automaton has 35 states [2021-06-05 11:14:58,101 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 11:14:58,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2021-06-05 11:14:58,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=1110, Unknown=0, NotChecked=0, Total=1190 [2021-06-05 11:14:58,101 INFO L87 Difference]: Start difference. First operand 3966 states and 8139 transitions. Second operand has 35 states, 35 states have (on average 2.5142857142857142) internal successors, (88), 35 states have internal predecessors, (88), 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) [2021-06-05 11:14:59,316 WARN L205 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 63 [2021-06-05 11:14:59,503 WARN L205 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 101 DAG size of output: 65 [2021-06-05 11:14:59,702 WARN L205 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 69 [2021-06-05 11:14:59,990 WARN L205 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 111 DAG size of output: 70 Received shutdown request... [2021-06-05 11:15:00,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 11:15:00,040 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable101 [2021-06-05 11:15:00,041 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 11:15:00,042 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 11:15:00,043 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 11:15:00,043 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 11:15:00 BasicIcfg [2021-06-05 11:15:00,043 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 11:15:00,044 INFO L168 Benchmark]: Toolchain (without parser) took 738579.20 ms. Allocated memory was 343.9 MB in the beginning and 778.0 MB in the end (delta: 434.1 MB). Free memory was 306.1 MB in the beginning and 534.4 MB in the end (delta: -228.4 MB). Peak memory consumption was 206.2 MB. Max. memory is 16.0 GB. [2021-06-05 11:15:00,044 INFO L168 Benchmark]: CDTParser took 0.09 ms. Allocated memory is still 343.9 MB. Free memory was 324.4 MB in the beginning and 324.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:15:00,044 INFO L168 Benchmark]: CACSL2BoogieTranslator took 411.28 ms. Allocated memory is still 343.9 MB. Free memory was 305.9 MB in the beginning and 294.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:15:00,044 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.34 ms. Allocated memory is still 343.9 MB. Free memory was 293.7 MB in the beginning and 291.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 11:15:00,044 INFO L168 Benchmark]: Boogie Preprocessor took 18.20 ms. Allocated memory is still 343.9 MB. Free memory was 291.6 MB in the beginning and 290.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 11:15:00,044 INFO L168 Benchmark]: RCFGBuilder took 456.57 ms. Allocated memory is still 343.9 MB. Free memory was 289.5 MB in the beginning and 257.0 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-06-05 11:15:00,044 INFO L168 Benchmark]: TraceAbstraction took 737658.14 ms. Allocated memory was 343.9 MB in the beginning and 778.0 MB in the end (delta: 434.1 MB). Free memory was 257.0 MB in the beginning and 534.4 MB in the end (delta: -277.4 MB). Peak memory consumption was 158.8 MB. Max. memory is 16.0 GB. [2021-06-05 11:15:00,044 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09 ms. Allocated memory is still 343.9 MB. Free memory was 324.4 MB in the beginning and 324.4 MB in the end (delta: 65.6 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 411.28 ms. Allocated memory is still 343.9 MB. Free memory was 305.9 MB in the beginning and 294.7 MB in the end (delta: 11.1 MB). Peak memory consumption was 11.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 28.34 ms. Allocated memory is still 343.9 MB. Free memory was 293.7 MB in the beginning and 291.6 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 18.20 ms. Allocated memory is still 343.9 MB. Free memory was 291.6 MB in the beginning and 290.6 MB in the end (delta: 1.0 MB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 456.57 ms. Allocated memory is still 343.9 MB. Free memory was 289.5 MB in the beginning and 257.0 MB in the end (delta: 32.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 737658.14 ms. Allocated memory was 343.9 MB in the beginning and 778.0 MB in the end (delta: 434.1 MB). Free memory was 257.0 MB in the beginning and 534.4 MB in the end (delta: -277.4 MB). Peak memory consumption was 158.8 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 837]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3966states) and FLOYD_HOARE automaton (currently 20 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 52 known predicates. - TimeoutResultAtElement [Line: 832]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3966states) and FLOYD_HOARE automaton (currently 20 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 52 known predicates. - TimeoutResultAtElement [Line: 836]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while BasicCegarLoop was constructing difference of abstraction (3966states) and FLOYD_HOARE automaton (currently 20 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 52 known predicates. - TimeoutResultAtElement [Line: 854]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while BasicCegarLoop was constructing difference of abstraction (3966states) and FLOYD_HOARE automaton (currently 20 states, 35 states before enhancement),while PredicateComparison was comparing new predicate (quantifier-free) to 52 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 198 locations, 7 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 737503.3ms, OverallIterations: 102, TraceHistogramMax: 1, EmptinessCheckTime: 271.9ms, AutomataDifference: 654951.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 74.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 48004 SDtfs, 158188 SDslu, 796689 SDs, 0 SdLazy, 368275 SolverSat, 4238 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 136444.1ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8647 GetRequests, 366 SyntacticMatches, 221 SemanticMatches, 8059 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117799 ImplicationChecksByTransitivity, 545875.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=3992occurred in iteration=64, InterpolantAutomatonStates: 5211, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 3898.6ms AutomataMinimizationTime, 101 MinimizatonAttempts, 206115 StatesRemovedByMinimization, 100 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 128.2ms SsaConstructionTime, 944.5ms SatisfiabilityAnalysisTime, 76693.1ms InterpolantComputationTime, 8809 NumberOfCodeBlocks, 8809 NumberOfCodeBlocksAsserted, 102 NumberOfCheckSat, 8707 ConstructedInterpolants, 0 QuantifiedInterpolants, 153416 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 102 InterpolantComputations, 102 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown