/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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-10 17:52:09,586 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-10 17:52:09,587 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-10 17:52:09,612 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-10 17:52:09,657 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-10 17:52:09,658 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-10 17:52:09,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-10 17:52:09,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-03-10 17:52:09,691 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-10 17:52:09,691 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-10 17:52:09,692 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-03-10 17:52:09,692 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-03-10 17:52:09,694 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-10 17:52:09,694 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-10 17:52:09,694 INFO L138 SettingsManager]: * Use SBE=true [2021-03-10 17:52:09,695 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-10 17:52:09,695 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-10 17:52:09,695 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-10 17:52:09,695 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-10 17:52:09,695 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-10 17:52:09,695 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-10 17:52:09,696 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-10 17:52:09,696 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-10 17:52:09,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-10 17:52:09,697 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-10 17:52:09,697 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-10 17:52:09,697 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-10 17:52:09,697 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-10 17:52:09,697 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-10 17:52:09,697 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-03-10 17:52:09,697 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-10 17:52:09,697 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-10 17:52:09,950 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-10 17:52:09,970 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-10 17:52:09,973 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-10 17:52:09,973 INFO L271 PluginConnector]: Initializing CDTParser... [2021-03-10 17:52:09,974 INFO L275 PluginConnector]: CDTParser initialized [2021-03-10 17:52:09,974 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-10 17:52:10,025 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7545faf/67448aeec4d142968bdd60247736d377/FLAGc0e6aa846 [2021-03-10 17:52:10,620 INFO L306 CDTParser]: Found 1 translation units. [2021-03-10 17:52:10,621 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2021-03-10 17:52:10,638 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7545faf/67448aeec4d142968bdd60247736d377/FLAGc0e6aa846 [2021-03-10 17:52:11,005 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5c7545faf/67448aeec4d142968bdd60247736d377 [2021-03-10 17:52:11,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-10 17:52:11,011 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-03-10 17:52:11,013 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-03-10 17:52:11,013 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-03-10 17:52:11,018 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-03-10 17:52:11,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@193f78d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11, skipping insertion in model container [2021-03-10 17:52:11,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-03-10 17:52:11,067 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-03-10 17:52:11,169 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 17:52:11,410 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-10 17:52:11,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:52:11,429 INFO L203 MainTranslator]: Completed pre-run [2021-03-10 17:52:11,436 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-03-10 17:52:11,458 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i[75009,75022] [2021-03-10 17:52:11,464 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-03-10 17:52:11,629 INFO L208 MainTranslator]: Completed translation [2021-03-10 17:52:11,629 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11 WrapperNode [2021-03-10 17:52:11,629 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-03-10 17:52:11,630 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-10 17:52:11,630 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-10 17:52:11,630 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-10 17:52:11,636 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,663 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,701 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-10 17:52:11,702 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-10 17:52:11,702 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-10 17:52:11,702 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-10 17:52:11,707 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,707 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,733 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,735 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,752 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (1/1) ... [2021-03-10 17:52:11,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-10 17:52:11,758 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-10 17:52:11,758 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-10 17:52:11,758 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-10 17:52:11,759 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (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 [2021-03-10 17:52:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-03-10 17:52:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-03-10 17:52:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-03-10 17:52:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-03-10 17:52:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-03-10 17:52:11,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-10 17:52:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-10 17:52:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-03-10 17:52:11,811 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-03-10 17:52:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-03-10 17:52:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-03-10 17:52:11,811 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-03-10 17:52:11,812 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-10 17:52:12,322 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-10 17:52:12,322 INFO L299 CfgBuilder]: Removed 24 assume(true) statements. [2021-03-10 17:52:12,323 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:52:12 BoogieIcfgContainer [2021-03-10 17:52:12,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-10 17:52:12,324 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-10 17:52:12,324 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-10 17:52:12,326 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-10 17:52:12,326 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.03 05:52:11" (1/3) ... [2021-03-10 17:52:12,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b43f814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:52:12, skipping insertion in model container [2021-03-10 17:52:12,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.03 05:52:11" (2/3) ... [2021-03-10 17:52:12,327 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b43f814 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.03 05:52:12, skipping insertion in model container [2021-03-10 17:52:12,327 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.03 05:52:12" (3/3) ... [2021-03-10 17:52:12,328 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2021-03-10 17:52:12,331 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-10 17:52:12,332 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-10 17:52:12,334 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2021-03-10 17:52:12,335 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-10 17:52:12,354 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,355 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,355 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,356 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,357 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,358 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,359 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,360 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,361 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,362 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,363 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,364 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,364 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,364 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,364 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,364 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,364 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,366 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,366 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,366 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,366 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,367 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,367 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,367 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,367 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,367 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,367 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,369 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-03-10 17:52:12,380 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-03-10 17:52:12,391 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2021-03-10 17:52:12,402 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-10 17:52:12,402 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-10 17:52:12,402 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-10 17:52:12,402 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-10 17:52:12,402 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-10 17:52:12,402 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-10 17:52:12,403 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-10 17:52:12,403 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-10 17:52:12,411 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 152 places, 156 transitions, 334 flow [2021-03-10 17:52:12,511 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4146 states, 4135 states have (on average 2.755018137847642) internal successors, (11392), 4145 states have internal predecessors, (11392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,520 INFO L276 IsEmpty]: Start isEmpty. Operand has 4146 states, 4135 states have (on average 2.755018137847642) internal successors, (11392), 4145 states have internal predecessors, (11392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:12,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2021-03-10 17:52:12,524 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:12,525 INFO L519 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] [2021-03-10 17:52:12,525 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:12,528 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:12,528 INFO L82 PathProgramCache]: Analyzing trace with hash -582384552, now seen corresponding path program 1 times [2021-03-10 17:52:12,533 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:12,533 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [155414524] [2021-03-10 17:52:12,534 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:12,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:12,800 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:12,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [155414524] [2021-03-10 17:52:12,801 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:12,801 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:12,801 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043275262] [2021-03-10 17:52:12,804 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:12,804 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:12,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:12,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:12,821 INFO L87 Difference]: Start difference. First operand has 4146 states, 4135 states have (on average 2.755018137847642) internal successors, (11392), 4145 states have internal predecessors, (11392), 0 states have call successors, (0), 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 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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) [2021-03-10 17:52:12,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:12,989 INFO L93 Difference]: Finished difference Result 3943 states and 10622 transitions. [2021-03-10 17:52:12,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-03-10 17:52:12,990 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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 [2021-03-10 17:52:12,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:13,010 INFO L225 Difference]: With dead ends: 3943 [2021-03-10 17:52:13,010 INFO L226 Difference]: Without dead ends: 3226 [2021-03-10 17:52:13,011 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 55.1ms TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2021-03-10 17:52:13,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3226 states. [2021-03-10 17:52:13,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3226 to 3225. [2021-03-10 17:52:13,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3225 states, 3218 states have (on average 2.6861404599129894) internal successors, (8644), 3224 states have internal predecessors, (8644), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3225 states to 3225 states and 8644 transitions. [2021-03-10 17:52:13,134 INFO L78 Accepts]: Start accepts. Automaton has 3225 states and 8644 transitions. Word has length 36 [2021-03-10 17:52:13,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:13,135 INFO L480 AbstractCegarLoop]: Abstraction has 3225 states and 8644 transitions. [2021-03-10 17:52:13,135 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.0) internal successors, (36), 6 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) [2021-03-10 17:52:13,135 INFO L276 IsEmpty]: Start isEmpty. Operand 3225 states and 8644 transitions. [2021-03-10 17:52:13,135 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2021-03-10 17:52:13,135 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:13,136 INFO L519 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] [2021-03-10 17:52:13,136 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-10 17:52:13,136 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:13,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:13,138 INFO L82 PathProgramCache]: Analyzing trace with hash 2135009715, now seen corresponding path program 1 times [2021-03-10 17:52:13,138 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:13,138 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405348897] [2021-03-10 17:52:13,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:13,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:13,261 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:13,261 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405348897] [2021-03-10 17:52:13,261 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:13,261 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:13,262 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904942450] [2021-03-10 17:52:13,263 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:13,263 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:13,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:13,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:13,265 INFO L87 Difference]: Start difference. First operand 3225 states and 8644 transitions. Second operand has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:13,400 INFO L93 Difference]: Finished difference Result 3227 states and 8646 transitions. [2021-03-10 17:52:13,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-03-10 17:52:13,400 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 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 42 [2021-03-10 17:52:13,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:13,412 INFO L225 Difference]: With dead ends: 3227 [2021-03-10 17:52:13,412 INFO L226 Difference]: Without dead ends: 3227 [2021-03-10 17:52:13,413 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 54.1ms TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2021-03-10 17:52:13,426 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3227 states. [2021-03-10 17:52:13,510 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3227 to 3223. [2021-03-10 17:52:13,527 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3223 states, 3217 states have (on average 2.6863537457258313) internal successors, (8642), 3222 states have internal predecessors, (8642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3223 states to 3223 states and 8642 transitions. [2021-03-10 17:52:13,537 INFO L78 Accepts]: Start accepts. Automaton has 3223 states and 8642 transitions. Word has length 42 [2021-03-10 17:52:13,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:13,537 INFO L480 AbstractCegarLoop]: Abstraction has 3223 states and 8642 transitions. [2021-03-10 17:52:13,538 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.0) internal successors, (42), 6 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,538 INFO L276 IsEmpty]: Start isEmpty. Operand 3223 states and 8642 transitions. [2021-03-10 17:52:13,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2021-03-10 17:52:13,544 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:13,544 INFO L519 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] [2021-03-10 17:52:13,544 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-10 17:52:13,544 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:13,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:13,545 INFO L82 PathProgramCache]: Analyzing trace with hash 653542742, now seen corresponding path program 1 times [2021-03-10 17:52:13,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:13,546 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1328127869] [2021-03-10 17:52:13,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:13,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:13,668 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:13,668 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1328127869] [2021-03-10 17:52:13,668 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:13,668 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:13,668 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501621448] [2021-03-10 17:52:13,669 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:13,669 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:13,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:13,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:13,670 INFO L87 Difference]: Start difference. First operand 3223 states and 8642 transitions. Second operand has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:13,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:13,942 INFO L93 Difference]: Finished difference Result 4746 states and 12720 transitions. [2021-03-10 17:52:13,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-03-10 17:52:13,943 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 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 60 [2021-03-10 17:52:13,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:13,975 INFO L225 Difference]: With dead ends: 4746 [2021-03-10 17:52:13,976 INFO L226 Difference]: Without dead ends: 4746 [2021-03-10 17:52:13,976 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 97.6ms TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:13,987 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4746 states. [2021-03-10 17:52:14,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4746 to 3621. [2021-03-10 17:52:14,041 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3621 states, 3616 states have (on average 2.688053097345133) internal successors, (9720), 3620 states have internal predecessors, (9720), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,051 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3621 states to 3621 states and 9720 transitions. [2021-03-10 17:52:14,051 INFO L78 Accepts]: Start accepts. Automaton has 3621 states and 9720 transitions. Word has length 60 [2021-03-10 17:52:14,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:14,054 INFO L480 AbstractCegarLoop]: Abstraction has 3621 states and 9720 transitions. [2021-03-10 17:52:14,054 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.0) internal successors, (60), 6 states have internal predecessors, (60), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,054 INFO L276 IsEmpty]: Start isEmpty. Operand 3621 states and 9720 transitions. [2021-03-10 17:52:14,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2021-03-10 17:52:14,057 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:14,058 INFO L519 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] [2021-03-10 17:52:14,058 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-10 17:52:14,059 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:14,059 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:14,059 INFO L82 PathProgramCache]: Analyzing trace with hash 1989630395, now seen corresponding path program 1 times [2021-03-10 17:52:14,059 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:14,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [148556506] [2021-03-10 17:52:14,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:14,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:14,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:14,138 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [148556506] [2021-03-10 17:52:14,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:14,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-03-10 17:52:14,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159571659] [2021-03-10 17:52:14,139 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-03-10 17:52:14,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:14,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-03-10 17:52:14,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-03-10 17:52:14,140 INFO L87 Difference]: Start difference. First operand 3621 states and 9720 transitions. Second operand has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:14,344 INFO L93 Difference]: Finished difference Result 5144 states and 13723 transitions. [2021-03-10 17:52:14,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-03-10 17:52:14,344 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 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 66 [2021-03-10 17:52:14,344 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:14,357 INFO L225 Difference]: With dead ends: 5144 [2021-03-10 17:52:14,357 INFO L226 Difference]: Without dead ends: 4343 [2021-03-10 17:52:14,357 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 54.9ms TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-03-10 17:52:14,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4343 states. [2021-03-10 17:52:14,414 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4343 to 4193. [2021-03-10 17:52:14,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4193 states, 4189 states have (on average 2.6970637383623774) internal successors, (11298), 4192 states have internal predecessors, (11298), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4193 states to 4193 states and 11298 transitions. [2021-03-10 17:52:14,431 INFO L78 Accepts]: Start accepts. Automaton has 4193 states and 11298 transitions. Word has length 66 [2021-03-10 17:52:14,432 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:14,432 INFO L480 AbstractCegarLoop]: Abstraction has 4193 states and 11298 transitions. [2021-03-10 17:52:14,432 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.0) internal successors, (66), 6 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,432 INFO L276 IsEmpty]: Start isEmpty. Operand 4193 states and 11298 transitions. [2021-03-10 17:52:14,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2021-03-10 17:52:14,437 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:14,437 INFO L519 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] [2021-03-10 17:52:14,437 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-10 17:52:14,437 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:14,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:14,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1595031102, now seen corresponding path program 1 times [2021-03-10 17:52:14,438 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:14,438 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138347850] [2021-03-10 17:52:14,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:14,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:14,517 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:14,517 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138347850] [2021-03-10 17:52:14,518 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:14,518 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-03-10 17:52:14,518 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55567956] [2021-03-10 17:52:14,519 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-10 17:52:14,519 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:14,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-10 17:52:14,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-03-10 17:52:14,520 INFO L87 Difference]: Start difference. First operand 4193 states and 11298 transitions. Second operand has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:14,550 INFO L93 Difference]: Finished difference Result 1499 states and 3857 transitions. [2021-03-10 17:52:14,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-03-10 17:52:14,550 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2021-03-10 17:52:14,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:14,566 INFO L225 Difference]: With dead ends: 1499 [2021-03-10 17:52:14,566 INFO L226 Difference]: Without dead ends: 1499 [2021-03-10 17:52:14,567 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 24.2ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-03-10 17:52:14,570 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2021-03-10 17:52:14,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1499. [2021-03-10 17:52:14,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1499 states, 1497 states have (on average 2.576486305945224) internal successors, (3857), 1498 states have internal predecessors, (3857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,592 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1499 states to 1499 states and 3857 transitions. [2021-03-10 17:52:14,592 INFO L78 Accepts]: Start accepts. Automaton has 1499 states and 3857 transitions. Word has length 72 [2021-03-10 17:52:14,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:14,593 INFO L480 AbstractCegarLoop]: Abstraction has 1499 states and 3857 transitions. [2021-03-10 17:52:14,593 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.4) internal successors, (72), 5 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:14,593 INFO L276 IsEmpty]: Start isEmpty. Operand 1499 states and 3857 transitions. [2021-03-10 17:52:14,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:14,597 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:14,597 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:14,597 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-10 17:52:14,597 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:14,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:14,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1450651630, now seen corresponding path program 1 times [2021-03-10 17:52:14,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:14,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575579780] [2021-03-10 17:52:14,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:14,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:14,974 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:14,976 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575579780] [2021-03-10 17:52:14,976 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:14,976 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 17:52:14,976 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312669213] [2021-03-10 17:52:14,977 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 17:52:14,977 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:14,977 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 17:52:14,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-03-10 17:52:14,978 INFO L87 Difference]: Start difference. First operand 1499 states and 3857 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:16,272 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:16,273 INFO L93 Difference]: Finished difference Result 3034 states and 7798 transitions. [2021-03-10 17:52:16,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-03-10 17:52:16,273 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:16,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:16,278 INFO L225 Difference]: With dead ends: 3034 [2021-03-10 17:52:16,278 INFO L226 Difference]: Without dead ends: 3004 [2021-03-10 17:52:16,279 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 900.9ms TimeCoverageRelationStatistics Valid=470, Invalid=936, Unknown=0, NotChecked=0, Total=1406 [2021-03-10 17:52:16,284 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3004 states. [2021-03-10 17:52:16,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3004 to 2285. [2021-03-10 17:52:16,313 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2285 states, 2283 states have (on average 2.6062198861147614) internal successors, (5950), 2284 states have internal predecessors, (5950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:16,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2285 states to 2285 states and 5950 transitions. [2021-03-10 17:52:16,317 INFO L78 Accepts]: Start accepts. Automaton has 2285 states and 5950 transitions. Word has length 99 [2021-03-10 17:52:16,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:16,318 INFO L480 AbstractCegarLoop]: Abstraction has 2285 states and 5950 transitions. [2021-03-10 17:52:16,318 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:16,319 INFO L276 IsEmpty]: Start isEmpty. Operand 2285 states and 5950 transitions. [2021-03-10 17:52:16,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:16,324 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:16,325 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:16,325 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-10 17:52:16,325 INFO L428 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:16,327 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:16,327 INFO L82 PathProgramCache]: Analyzing trace with hash -1620088688, now seen corresponding path program 1 times [2021-03-10 17:52:16,327 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:16,327 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682509132] [2021-03-10 17:52:16,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:16,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:16,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:16,721 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682509132] [2021-03-10 17:52:16,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:16,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:16,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1142610288] [2021-03-10 17:52:16,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:16,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:16,722 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:16,722 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:16,722 INFO L87 Difference]: Start difference. First operand 2285 states and 5950 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:17,874 INFO L93 Difference]: Finished difference Result 3114 states and 7916 transitions. [2021-03-10 17:52:17,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:17,875 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:17,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:17,878 INFO L225 Difference]: With dead ends: 3114 [2021-03-10 17:52:17,878 INFO L226 Difference]: Without dead ends: 3114 [2021-03-10 17:52:17,879 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 899.1ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:17,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3114 states. [2021-03-10 17:52:17,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3114 to 2932. [2021-03-10 17:52:17,916 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2932 states, 2930 states have (on average 2.5822525597269625) internal successors, (7566), 2931 states have internal predecessors, (7566), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2932 states to 2932 states and 7566 transitions. [2021-03-10 17:52:17,922 INFO L78 Accepts]: Start accepts. Automaton has 2932 states and 7566 transitions. Word has length 99 [2021-03-10 17:52:17,922 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:17,923 INFO L480 AbstractCegarLoop]: Abstraction has 2932 states and 7566 transitions. [2021-03-10 17:52:17,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:17,923 INFO L276 IsEmpty]: Start isEmpty. Operand 2932 states and 7566 transitions. [2021-03-10 17:52:17,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:17,927 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:17,927 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:17,927 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-03-10 17:52:17,927 INFO L428 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:17,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:17,928 INFO L82 PathProgramCache]: Analyzing trace with hash -1620467726, now seen corresponding path program 2 times [2021-03-10 17:52:17,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:17,928 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1951932542] [2021-03-10 17:52:17,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:17,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:18,211 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:18,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1951932542] [2021-03-10 17:52:18,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:18,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:18,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508017662] [2021-03-10 17:52:18,212 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:18,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:18,212 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:18,212 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:18,212 INFO L87 Difference]: Start difference. First operand 2932 states and 7566 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:18,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:18,837 INFO L93 Difference]: Finished difference Result 4036 states and 9983 transitions. [2021-03-10 17:52:18,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:18,838 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:18,838 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:18,843 INFO L225 Difference]: With dead ends: 4036 [2021-03-10 17:52:18,843 INFO L226 Difference]: Without dead ends: 4036 [2021-03-10 17:52:18,844 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 441.9ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:18,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4036 states. [2021-03-10 17:52:18,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4036 to 2903. [2021-03-10 17:52:18,886 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2903 states, 2901 states have (on average 2.5773871078938297) internal successors, (7477), 2902 states have internal predecessors, (7477), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:18,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2903 states to 2903 states and 7477 transitions. [2021-03-10 17:52:18,891 INFO L78 Accepts]: Start accepts. Automaton has 2903 states and 7477 transitions. Word has length 99 [2021-03-10 17:52:18,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:18,891 INFO L480 AbstractCegarLoop]: Abstraction has 2903 states and 7477 transitions. [2021-03-10 17:52:18,891 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:18,891 INFO L276 IsEmpty]: Start isEmpty. Operand 2903 states and 7477 transitions. [2021-03-10 17:52:18,895 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:18,895 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:18,895 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:18,896 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-03-10 17:52:18,896 INFO L428 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:18,896 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:18,896 INFO L82 PathProgramCache]: Analyzing trace with hash -2082259222, now seen corresponding path program 3 times [2021-03-10 17:52:18,896 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:18,896 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347841023] [2021-03-10 17:52:18,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:18,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:19,201 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:19,201 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347841023] [2021-03-10 17:52:19,201 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:19,201 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:19,201 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078485354] [2021-03-10 17:52:19,202 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:19,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:19,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:19,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:19,202 INFO L87 Difference]: Start difference. First operand 2903 states and 7477 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:20,453 INFO L93 Difference]: Finished difference Result 3598 states and 8962 transitions. [2021-03-10 17:52:20,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:20,453 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:20,453 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:20,457 INFO L225 Difference]: With dead ends: 3598 [2021-03-10 17:52:20,457 INFO L226 Difference]: Without dead ends: 3598 [2021-03-10 17:52:20,458 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 1027.4ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:52:20,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3598 states. [2021-03-10 17:52:20,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3598 to 2909. [2021-03-10 17:52:20,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2909 states, 2907 states have (on average 2.5772273821809426) internal successors, (7492), 2908 states have internal predecessors, (7492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2909 states to 2909 states and 7492 transitions. [2021-03-10 17:52:20,506 INFO L78 Accepts]: Start accepts. Automaton has 2909 states and 7492 transitions. Word has length 99 [2021-03-10 17:52:20,506 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:20,506 INFO L480 AbstractCegarLoop]: Abstraction has 2909 states and 7492 transitions. [2021-03-10 17:52:20,506 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:20,506 INFO L276 IsEmpty]: Start isEmpty. Operand 2909 states and 7492 transitions. [2021-03-10 17:52:20,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:20,511 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:20,511 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:20,511 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-03-10 17:52:20,511 INFO L428 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:20,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:20,511 INFO L82 PathProgramCache]: Analyzing trace with hash -189511852, now seen corresponding path program 4 times [2021-03-10 17:52:20,511 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:20,513 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [738494076] [2021-03-10 17:52:20,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:20,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:20,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:20,758 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [738494076] [2021-03-10 17:52:20,758 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:20,758 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:20,758 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [848478487] [2021-03-10 17:52:20,758 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:20,759 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:20,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:20,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:20,759 INFO L87 Difference]: Start difference. First operand 2909 states and 7492 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:21,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:21,349 INFO L93 Difference]: Finished difference Result 3536 states and 8759 transitions. [2021-03-10 17:52:21,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:21,349 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:21,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:21,353 INFO L225 Difference]: With dead ends: 3536 [2021-03-10 17:52:21,353 INFO L226 Difference]: Without dead ends: 3536 [2021-03-10 17:52:21,353 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 457.9ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:21,358 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3536 states. [2021-03-10 17:52:21,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3536 to 2952. [2021-03-10 17:52:21,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2952 states, 2950 states have (on average 2.5742372881355933) internal successors, (7594), 2951 states have internal predecessors, (7594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:21,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 7594 transitions. [2021-03-10 17:52:21,388 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 7594 transitions. Word has length 99 [2021-03-10 17:52:21,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:21,389 INFO L480 AbstractCegarLoop]: Abstraction has 2952 states and 7594 transitions. [2021-03-10 17:52:21,389 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:21,389 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 7594 transitions. [2021-03-10 17:52:21,392 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:21,392 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:21,392 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:21,392 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-03-10 17:52:21,392 INFO L428 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:21,393 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:21,393 INFO L82 PathProgramCache]: Analyzing trace with hash -1818981726, now seen corresponding path program 5 times [2021-03-10 17:52:21,393 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:21,393 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364659395] [2021-03-10 17:52:21,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:21,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:21,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:21,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364659395] [2021-03-10 17:52:21,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:21,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:21,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [594376270] [2021-03-10 17:52:21,687 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:21,687 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:21,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:21,688 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:21,688 INFO L87 Difference]: Start difference. First operand 2952 states and 7594 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:22,891 INFO L93 Difference]: Finished difference Result 3778 states and 9333 transitions. [2021-03-10 17:52:22,892 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:22,892 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:22,892 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:22,896 INFO L225 Difference]: With dead ends: 3778 [2021-03-10 17:52:22,896 INFO L226 Difference]: Without dead ends: 3778 [2021-03-10 17:52:22,896 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 155 ImplicationChecksByTransitivity, 935.5ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:22,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3778 states. [2021-03-10 17:52:22,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3778 to 2952. [2021-03-10 17:52:22,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2952 states, 2950 states have (on average 2.5742372881355933) internal successors, (7594), 2951 states have internal predecessors, (7594), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2952 states to 2952 states and 7594 transitions. [2021-03-10 17:52:22,934 INFO L78 Accepts]: Start accepts. Automaton has 2952 states and 7594 transitions. Word has length 99 [2021-03-10 17:52:22,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:22,934 INFO L480 AbstractCegarLoop]: Abstraction has 2952 states and 7594 transitions. [2021-03-10 17:52:22,934 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:22,934 INFO L276 IsEmpty]: Start isEmpty. Operand 2952 states and 7594 transitions. [2021-03-10 17:52:22,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:22,938 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:22,938 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:22,938 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-03-10 17:52:22,938 INFO L428 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:22,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:22,938 INFO L82 PathProgramCache]: Analyzing trace with hash -1919994254, now seen corresponding path program 6 times [2021-03-10 17:52:22,938 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:22,938 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785746265] [2021-03-10 17:52:22,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:22,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:23,152 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:23,152 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785746265] [2021-03-10 17:52:23,152 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:23,152 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:23,152 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [537810964] [2021-03-10 17:52:23,152 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:23,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:23,153 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:23,153 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:23,153 INFO L87 Difference]: Start difference. First operand 2952 states and 7594 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,744 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:23,744 INFO L93 Difference]: Finished difference Result 3250 states and 8173 transitions. [2021-03-10 17:52:23,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:52:23,745 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:23,745 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:23,748 INFO L225 Difference]: With dead ends: 3250 [2021-03-10 17:52:23,748 INFO L226 Difference]: Without dead ends: 3250 [2021-03-10 17:52:23,748 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 447.0ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:23,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3250 states. [2021-03-10 17:52:23,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3250 to 2890. [2021-03-10 17:52:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2890 states, 2888 states have (on average 2.579639889196676) internal successors, (7450), 2889 states have internal predecessors, (7450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,799 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2890 states to 2890 states and 7450 transitions. [2021-03-10 17:52:23,799 INFO L78 Accepts]: Start accepts. Automaton has 2890 states and 7450 transitions. Word has length 99 [2021-03-10 17:52:23,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:23,799 INFO L480 AbstractCegarLoop]: Abstraction has 2890 states and 7450 transitions. [2021-03-10 17:52:23,799 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:23,800 INFO L276 IsEmpty]: Start isEmpty. Operand 2890 states and 7450 transitions. [2021-03-10 17:52:23,803 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:23,803 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:23,803 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:23,803 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-03-10 17:52:23,803 INFO L428 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:23,803 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:23,803 INFO L82 PathProgramCache]: Analyzing trace with hash 1379706316, now seen corresponding path program 7 times [2021-03-10 17:52:23,804 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:23,804 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [778038442] [2021-03-10 17:52:23,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:23,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:24,147 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:24,147 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [778038442] [2021-03-10 17:52:24,147 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:24,147 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:24,147 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [713934964] [2021-03-10 17:52:24,147 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:24,148 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:24,148 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:24,149 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:24,149 INFO L87 Difference]: Start difference. First operand 2890 states and 7450 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,232 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:25,232 INFO L93 Difference]: Finished difference Result 3593 states and 8841 transitions. [2021-03-10 17:52:25,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:25,232 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:25,232 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:25,236 INFO L225 Difference]: With dead ends: 3593 [2021-03-10 17:52:25,236 INFO L226 Difference]: Without dead ends: 3593 [2021-03-10 17:52:25,236 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 893.8ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:25,241 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3593 states. [2021-03-10 17:52:25,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3593 to 2908. [2021-03-10 17:52:25,270 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2908 states, 2906 states have (on average 2.579146593255334) internal successors, (7495), 2907 states have internal predecessors, (7495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,274 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2908 states to 2908 states and 7495 transitions. [2021-03-10 17:52:25,275 INFO L78 Accepts]: Start accepts. Automaton has 2908 states and 7495 transitions. Word has length 99 [2021-03-10 17:52:25,275 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:25,275 INFO L480 AbstractCegarLoop]: Abstraction has 2908 states and 7495 transitions. [2021-03-10 17:52:25,275 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:25,275 INFO L276 IsEmpty]: Start isEmpty. Operand 2908 states and 7495 transitions. [2021-03-10 17:52:25,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:25,279 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:25,279 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:25,279 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-03-10 17:52:25,279 INFO L428 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:25,279 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:25,279 INFO L82 PathProgramCache]: Analyzing trace with hash -1541858640, now seen corresponding path program 2 times [2021-03-10 17:52:25,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:25,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1662972332] [2021-03-10 17:52:25,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:25,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:25,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:25,565 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1662972332] [2021-03-10 17:52:25,566 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:25,566 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 17:52:25,566 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [178598972] [2021-03-10 17:52:25,566 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 17:52:25,566 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:25,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 17:52:25,566 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=218, Unknown=0, NotChecked=0, Total=272 [2021-03-10 17:52:25,566 INFO L87 Difference]: Start difference. First operand 2908 states and 7495 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:26,917 INFO L93 Difference]: Finished difference Result 4562 states and 11471 transitions. [2021-03-10 17:52:26,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-03-10 17:52:26,918 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:26,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:26,921 INFO L225 Difference]: With dead ends: 4562 [2021-03-10 17:52:26,921 INFO L226 Difference]: Without dead ends: 4491 [2021-03-10 17:52:26,922 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 4 SyntacticMatches, 4 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 1074.2ms TimeCoverageRelationStatistics Valid=649, Invalid=1243, Unknown=0, NotChecked=0, Total=1892 [2021-03-10 17:52:26,927 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4491 states. [2021-03-10 17:52:26,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4491 to 3392. [2021-03-10 17:52:26,962 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3392 states, 3390 states have (on average 2.5985250737463126) internal successors, (8809), 3391 states have internal predecessors, (8809), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3392 states to 3392 states and 8809 transitions. [2021-03-10 17:52:26,966 INFO L78 Accepts]: Start accepts. Automaton has 3392 states and 8809 transitions. Word has length 99 [2021-03-10 17:52:26,967 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:26,967 INFO L480 AbstractCegarLoop]: Abstraction has 3392 states and 8809 transitions. [2021-03-10 17:52:26,967 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:26,967 INFO L276 IsEmpty]: Start isEmpty. Operand 3392 states and 8809 transitions. [2021-03-10 17:52:26,970 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:26,970 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:26,971 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:26,971 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-03-10 17:52:26,971 INFO L428 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:26,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:26,971 INFO L82 PathProgramCache]: Analyzing trace with hash -317631662, now seen corresponding path program 8 times [2021-03-10 17:52:26,971 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:26,971 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1112753747] [2021-03-10 17:52:26,971 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:26,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:27,178 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:27,179 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1112753747] [2021-03-10 17:52:27,179 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:27,179 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:27,179 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [167721614] [2021-03-10 17:52:27,179 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:27,179 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:27,179 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:27,179 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:27,180 INFO L87 Difference]: Start difference. First operand 3392 states and 8809 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:27,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:27,761 INFO L93 Difference]: Finished difference Result 4695 states and 11747 transitions. [2021-03-10 17:52:27,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-03-10 17:52:27,761 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:27,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:27,765 INFO L225 Difference]: With dead ends: 4695 [2021-03-10 17:52:27,765 INFO L226 Difference]: Without dead ends: 4695 [2021-03-10 17:52:27,766 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 406.7ms TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2021-03-10 17:52:27,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4695 states. [2021-03-10 17:52:27,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4695 to 3480. [2021-03-10 17:52:27,807 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3480 states, 3478 states have (on average 2.596607245543416) internal successors, (9031), 3479 states have internal predecessors, (9031), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:27,811 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3480 states to 3480 states and 9031 transitions. [2021-03-10 17:52:27,812 INFO L78 Accepts]: Start accepts. Automaton has 3480 states and 9031 transitions. Word has length 99 [2021-03-10 17:52:27,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:27,812 INFO L480 AbstractCegarLoop]: Abstraction has 3480 states and 9031 transitions. [2021-03-10 17:52:27,812 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:27,812 INFO L276 IsEmpty]: Start isEmpty. Operand 3480 states and 9031 transitions. [2021-03-10 17:52:27,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:27,816 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:27,816 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:27,816 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-03-10 17:52:27,816 INFO L428 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:27,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:27,816 INFO L82 PathProgramCache]: Analyzing trace with hash 942643652, now seen corresponding path program 9 times [2021-03-10 17:52:27,816 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:27,817 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [156126027] [2021-03-10 17:52:27,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:27,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:28,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [156126027] [2021-03-10 17:52:28,010 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:28,010 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:28,010 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171761657] [2021-03-10 17:52:28,010 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:28,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:28,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:28,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:28,010 INFO L87 Difference]: Start difference. First operand 3480 states and 9031 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,617 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:28,617 INFO L93 Difference]: Finished difference Result 4521 states and 11220 transitions. [2021-03-10 17:52:28,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:28,618 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:28,618 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:28,621 INFO L225 Difference]: With dead ends: 4521 [2021-03-10 17:52:28,621 INFO L226 Difference]: Without dead ends: 4521 [2021-03-10 17:52:28,621 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 421.1ms TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:28,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4521 states. [2021-03-10 17:52:28,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4521 to 3474. [2021-03-10 17:52:28,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3474 states, 3472 states have (on average 2.59389400921659) internal successors, (9006), 3473 states have internal predecessors, (9006), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3474 states to 3474 states and 9006 transitions. [2021-03-10 17:52:28,667 INFO L78 Accepts]: Start accepts. Automaton has 3474 states and 9006 transitions. Word has length 99 [2021-03-10 17:52:28,667 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:28,667 INFO L480 AbstractCegarLoop]: Abstraction has 3474 states and 9006 transitions. [2021-03-10 17:52:28,667 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:28,667 INFO L276 IsEmpty]: Start isEmpty. Operand 3474 states and 9006 transitions. [2021-03-10 17:52:28,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:28,671 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:28,671 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:28,671 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-03-10 17:52:28,671 INFO L428 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:28,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:28,672 INFO L82 PathProgramCache]: Analyzing trace with hash 832869428, now seen corresponding path program 10 times [2021-03-10 17:52:28,672 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:28,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [385538683] [2021-03-10 17:52:28,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:28,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:28,887 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:28,887 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [385538683] [2021-03-10 17:52:28,887 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:28,887 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:28,887 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130093136] [2021-03-10 17:52:28,887 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:28,887 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:28,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:28,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:28,888 INFO L87 Difference]: Start difference. First operand 3474 states and 9006 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:29,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:29,459 INFO L93 Difference]: Finished difference Result 4388 states and 10837 transitions. [2021-03-10 17:52:29,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:29,459 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:29,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:29,462 INFO L225 Difference]: With dead ends: 4388 [2021-03-10 17:52:29,462 INFO L226 Difference]: Without dead ends: 4388 [2021-03-10 17:52:29,462 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 429.8ms TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:29,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4388 states. [2021-03-10 17:52:29,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4388 to 3519. [2021-03-10 17:52:29,503 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 3517 states have (on average 2.59084446971851) internal successors, (9112), 3518 states have internal predecessors, (9112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:29,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 9112 transitions. [2021-03-10 17:52:29,509 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 9112 transitions. Word has length 99 [2021-03-10 17:52:29,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:29,509 INFO L480 AbstractCegarLoop]: Abstraction has 3519 states and 9112 transitions. [2021-03-10 17:52:29,509 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:29,509 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 9112 transitions. [2021-03-10 17:52:29,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:29,513 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:29,513 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:29,514 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-03-10 17:52:29,514 INFO L428 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:29,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:29,514 INFO L82 PathProgramCache]: Analyzing trace with hash -668440806, now seen corresponding path program 11 times [2021-03-10 17:52:29,514 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:29,514 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1836169510] [2021-03-10 17:52:29,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:29,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:29,814 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:29,814 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1836169510] [2021-03-10 17:52:29,814 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:29,814 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:29,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609260133] [2021-03-10 17:52:29,816 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:29,816 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:29,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:29,816 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:29,816 INFO L87 Difference]: Start difference. First operand 3519 states and 9112 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,939 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:30,940 INFO L93 Difference]: Finished difference Result 4876 states and 12281 transitions. [2021-03-10 17:52:30,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:30,941 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:30,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:30,944 INFO L225 Difference]: With dead ends: 4876 [2021-03-10 17:52:30,944 INFO L226 Difference]: Without dead ends: 4876 [2021-03-10 17:52:30,945 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 102 ImplicationChecksByTransitivity, 955.8ms TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:30,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4876 states. [2021-03-10 17:52:30,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4876 to 3552. [2021-03-10 17:52:30,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3552 states, 3550 states have (on average 2.594647887323944) internal successors, (9211), 3551 states have internal predecessors, (9211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,987 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3552 states to 3552 states and 9211 transitions. [2021-03-10 17:52:30,987 INFO L78 Accepts]: Start accepts. Automaton has 3552 states and 9211 transitions. Word has length 99 [2021-03-10 17:52:30,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:30,987 INFO L480 AbstractCegarLoop]: Abstraction has 3552 states and 9211 transitions. [2021-03-10 17:52:30,987 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:30,987 INFO L276 IsEmpty]: Start isEmpty. Operand 3552 states and 9211 transitions. [2021-03-10 17:52:30,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:30,991 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:30,991 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:30,991 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-03-10 17:52:30,991 INFO L428 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:30,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:30,992 INFO L82 PathProgramCache]: Analyzing trace with hash 1765414140, now seen corresponding path program 12 times [2021-03-10 17:52:30,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:30,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180836130] [2021-03-10 17:52:30,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:31,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:31,277 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:31,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180836130] [2021-03-10 17:52:31,278 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:31,278 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:31,278 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162481304] [2021-03-10 17:52:31,279 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:31,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:31,280 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:31,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:31,280 INFO L87 Difference]: Start difference. First operand 3552 states and 9211 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:32,544 INFO L93 Difference]: Finished difference Result 4669 states and 11756 transitions. [2021-03-10 17:52:32,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:32,544 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:32,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:32,548 INFO L225 Difference]: With dead ends: 4669 [2021-03-10 17:52:32,549 INFO L226 Difference]: Without dead ends: 4669 [2021-03-10 17:52:32,549 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 1018.4ms TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:52:32,554 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4669 states. [2021-03-10 17:52:32,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4669 to 3519. [2021-03-10 17:52:32,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3519 states, 3517 states have (on average 2.59084446971851) internal successors, (9112), 3518 states have internal predecessors, (9112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3519 states to 3519 states and 9112 transitions. [2021-03-10 17:52:32,596 INFO L78 Accepts]: Start accepts. Automaton has 3519 states and 9112 transitions. Word has length 99 [2021-03-10 17:52:32,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:32,596 INFO L480 AbstractCegarLoop]: Abstraction has 3519 states and 9112 transitions. [2021-03-10 17:52:32,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:32,596 INFO L276 IsEmpty]: Start isEmpty. Operand 3519 states and 9112 transitions. [2021-03-10 17:52:32,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:32,600 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:32,600 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:32,600 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-03-10 17:52:32,600 INFO L428 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:32,601 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:32,601 INFO L82 PathProgramCache]: Analyzing trace with hash -48380788, now seen corresponding path program 13 times [2021-03-10 17:52:32,601 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:32,601 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1020966738] [2021-03-10 17:52:32,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:32,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:32,929 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1020966738] [2021-03-10 17:52:32,929 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:32,929 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:32,929 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40318789] [2021-03-10 17:52:32,930 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:32,930 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:32,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:32,930 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:32,930 INFO L87 Difference]: Start difference. First operand 3519 states and 9112 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:34,024 INFO L93 Difference]: Finished difference Result 4400 states and 10948 transitions. [2021-03-10 17:52:34,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:34,025 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:34,025 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:34,029 INFO L225 Difference]: With dead ends: 4400 [2021-03-10 17:52:34,029 INFO L226 Difference]: Without dead ends: 4400 [2021-03-10 17:52:34,029 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 991.0ms TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:34,034 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2021-03-10 17:52:34,065 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 3525. [2021-03-10 17:52:34,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3525 states, 3523 states have (on average 2.5906897530513766) internal successors, (9127), 3524 states have internal predecessors, (9127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3525 states to 3525 states and 9127 transitions. [2021-03-10 17:52:34,072 INFO L78 Accepts]: Start accepts. Automaton has 3525 states and 9127 transitions. Word has length 99 [2021-03-10 17:52:34,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:34,073 INFO L480 AbstractCegarLoop]: Abstraction has 3525 states and 9127 transitions. [2021-03-10 17:52:34,073 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:34,073 INFO L276 IsEmpty]: Start isEmpty. Operand 3525 states and 9127 transitions. [2021-03-10 17:52:34,076 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:34,077 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:34,077 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:34,077 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-03-10 17:52:34,077 INFO L428 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:34,077 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:34,077 INFO L82 PathProgramCache]: Analyzing trace with hash 1608337254, now seen corresponding path program 14 times [2021-03-10 17:52:34,077 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:34,077 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1265596435] [2021-03-10 17:52:34,077 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:34,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:34,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:34,357 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1265596435] [2021-03-10 17:52:34,357 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:34,357 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:34,357 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1108744661] [2021-03-10 17:52:34,358 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:34,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:34,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:34,358 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:34,358 INFO L87 Difference]: Start difference. First operand 3525 states and 9127 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:35,930 INFO L93 Difference]: Finished difference Result 5561 states and 13802 transitions. [2021-03-10 17:52:35,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:52:35,930 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:35,930 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:35,934 INFO L225 Difference]: With dead ends: 5561 [2021-03-10 17:52:35,934 INFO L226 Difference]: Without dead ends: 5561 [2021-03-10 17:52:35,934 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 1351.1ms TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2021-03-10 17:52:35,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5561 states. [2021-03-10 17:52:35,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5561 to 3206. [2021-03-10 17:52:35,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3206 states, 3204 states have (on average 2.5842696629213484) internal successors, (8280), 3205 states have internal predecessors, (8280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3206 states to 3206 states and 8280 transitions. [2021-03-10 17:52:35,977 INFO L78 Accepts]: Start accepts. Automaton has 3206 states and 8280 transitions. Word has length 99 [2021-03-10 17:52:35,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:35,977 INFO L480 AbstractCegarLoop]: Abstraction has 3206 states and 8280 transitions. [2021-03-10 17:52:35,977 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:35,977 INFO L276 IsEmpty]: Start isEmpty. Operand 3206 states and 8280 transitions. [2021-03-10 17:52:35,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:35,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:35,981 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:35,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-03-10 17:52:35,981 INFO L428 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:35,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:35,982 INFO L82 PathProgramCache]: Analyzing trace with hash -252775096, now seen corresponding path program 15 times [2021-03-10 17:52:35,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:35,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823685283] [2021-03-10 17:52:35,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:35,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:36,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:36,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823685283] [2021-03-10 17:52:36,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:36,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:36,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237682562] [2021-03-10 17:52:36,260 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:36,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:36,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:36,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:36,260 INFO L87 Difference]: Start difference. First operand 3206 states and 8280 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:37,924 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:37,925 INFO L93 Difference]: Finished difference Result 5354 states and 13277 transitions. [2021-03-10 17:52:37,925 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:52:37,925 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:37,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:37,929 INFO L225 Difference]: With dead ends: 5354 [2021-03-10 17:52:37,929 INFO L226 Difference]: Without dead ends: 5354 [2021-03-10 17:52:37,930 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 226 ImplicationChecksByTransitivity, 1421.4ms TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2021-03-10 17:52:37,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5354 states. [2021-03-10 17:52:37,963 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5354 to 3173. [2021-03-10 17:52:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3173 states, 3171 states have (on average 2.5799432355723746) internal successors, (8181), 3172 states have internal predecessors, (8181), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:37,969 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3173 states to 3173 states and 8181 transitions. [2021-03-10 17:52:37,969 INFO L78 Accepts]: Start accepts. Automaton has 3173 states and 8181 transitions. Word has length 99 [2021-03-10 17:52:37,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:37,969 INFO L480 AbstractCegarLoop]: Abstraction has 3173 states and 8181 transitions. [2021-03-10 17:52:37,970 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:37,970 INFO L276 IsEmpty]: Start isEmpty. Operand 3173 states and 8181 transitions. [2021-03-10 17:52:37,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:37,973 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:37,973 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:37,973 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-03-10 17:52:37,973 INFO L428 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:37,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:37,973 INFO L82 PathProgramCache]: Analyzing trace with hash 1122049240, now seen corresponding path program 16 times [2021-03-10 17:52:37,973 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:37,974 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429432980] [2021-03-10 17:52:37,974 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:37,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:38,246 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:38,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429432980] [2021-03-10 17:52:38,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:38,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:38,247 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1652750541] [2021-03-10 17:52:38,247 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:38,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:38,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:38,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:38,247 INFO L87 Difference]: Start difference. First operand 3173 states and 8181 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:39,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:39,523 INFO L93 Difference]: Finished difference Result 4837 states and 11975 transitions. [2021-03-10 17:52:39,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:52:39,523 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:39,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:39,526 INFO L225 Difference]: With dead ends: 4837 [2021-03-10 17:52:39,526 INFO L226 Difference]: Without dead ends: 4837 [2021-03-10 17:52:39,527 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 1020.5ms TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:39,532 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4837 states. [2021-03-10 17:52:39,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4837 to 3162. [2021-03-10 17:52:39,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3162 states, 3160 states have (on average 2.578481012658228) internal successors, (8148), 3161 states have internal predecessors, (8148), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:39,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3162 states to 3162 states and 8148 transitions. [2021-03-10 17:52:39,565 INFO L78 Accepts]: Start accepts. Automaton has 3162 states and 8148 transitions. Word has length 99 [2021-03-10 17:52:39,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:39,565 INFO L480 AbstractCegarLoop]: Abstraction has 3162 states and 8148 transitions. [2021-03-10 17:52:39,565 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:39,565 INFO L276 IsEmpty]: Start isEmpty. Operand 3162 states and 8148 transitions. [2021-03-10 17:52:39,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:39,568 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:39,569 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:39,569 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-03-10 17:52:39,569 INFO L428 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:39,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:39,569 INFO L82 PathProgramCache]: Analyzing trace with hash -106709132, now seen corresponding path program 17 times [2021-03-10 17:52:39,569 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:39,569 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [474995552] [2021-03-10 17:52:39,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:39,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:39,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:39,858 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [474995552] [2021-03-10 17:52:39,858 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:39,858 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:39,858 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [295473972] [2021-03-10 17:52:39,858 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:39,858 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:39,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:39,859 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:39,859 INFO L87 Difference]: Start difference. First operand 3162 states and 8148 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:40,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:40,915 INFO L93 Difference]: Finished difference Result 4292 states and 10513 transitions. [2021-03-10 17:52:40,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:40,915 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:40,915 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:40,919 INFO L225 Difference]: With dead ends: 4292 [2021-03-10 17:52:40,919 INFO L226 Difference]: Without dead ends: 4292 [2021-03-10 17:52:40,920 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 938.9ms TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:40,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4292 states. [2021-03-10 17:52:40,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4292 to 3164. [2021-03-10 17:52:40,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 3162 states have (on average 2.5784313725490198) internal successors, (8153), 3163 states have internal predecessors, (8153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:40,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 8153 transitions. [2021-03-10 17:52:40,959 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 8153 transitions. Word has length 99 [2021-03-10 17:52:40,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:40,959 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 8153 transitions. [2021-03-10 17:52:40,960 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:40,960 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 8153 transitions. [2021-03-10 17:52:40,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:40,962 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:40,962 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:40,963 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-03-10 17:52:40,963 INFO L428 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:40,963 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:40,963 INFO L82 PathProgramCache]: Analyzing trace with hash 1340900168, now seen corresponding path program 18 times [2021-03-10 17:52:40,963 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:40,963 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [654151199] [2021-03-10 17:52:40,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:41,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:41,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:41,271 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [654151199] [2021-03-10 17:52:41,271 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:41,271 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:41,271 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1514004149] [2021-03-10 17:52:41,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:41,272 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:41,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:41,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:41,272 INFO L87 Difference]: Start difference. First operand 3164 states and 8153 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:42,443 INFO L93 Difference]: Finished difference Result 4145 states and 10198 transitions. [2021-03-10 17:52:42,447 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:52:42,447 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:42,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:42,451 INFO L225 Difference]: With dead ends: 4145 [2021-03-10 17:52:42,451 INFO L226 Difference]: Without dead ends: 4145 [2021-03-10 17:52:42,451 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 977.5ms TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:42,456 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4145 states. [2021-03-10 17:52:42,480 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4145 to 3164. [2021-03-10 17:52:42,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3164 states, 3162 states have (on average 2.5784313725490198) internal successors, (8153), 3163 states have internal predecessors, (8153), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3164 states to 3164 states and 8153 transitions. [2021-03-10 17:52:42,486 INFO L78 Accepts]: Start accepts. Automaton has 3164 states and 8153 transitions. Word has length 99 [2021-03-10 17:52:42,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:42,487 INFO L480 AbstractCegarLoop]: Abstraction has 3164 states and 8153 transitions. [2021-03-10 17:52:42,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:42,487 INFO L276 IsEmpty]: Start isEmpty. Operand 3164 states and 8153 transitions. [2021-03-10 17:52:42,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:42,490 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:42,490 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:42,490 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-03-10 17:52:42,490 INFO L428 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:42,490 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:42,490 INFO L82 PathProgramCache]: Analyzing trace with hash -430646262, now seen corresponding path program 19 times [2021-03-10 17:52:42,491 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:42,491 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1511038436] [2021-03-10 17:52:42,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:42,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:42,791 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:42,791 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1511038436] [2021-03-10 17:52:42,791 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:42,791 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:42,792 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157735712] [2021-03-10 17:52:42,792 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:42,792 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:42,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:42,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:42,792 INFO L87 Difference]: Start difference. First operand 3164 states and 8153 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:43,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:43,862 INFO L93 Difference]: Finished difference Result 4007 states and 9822 transitions. [2021-03-10 17:52:43,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:43,862 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:43,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:43,866 INFO L225 Difference]: With dead ends: 4007 [2021-03-10 17:52:43,866 INFO L226 Difference]: Without dead ends: 4007 [2021-03-10 17:52:43,866 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 850.2ms TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:43,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4007 states. [2021-03-10 17:52:43,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4007 to 3158. [2021-03-10 17:52:43,899 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3158 states, 3156 states have (on average 2.5785804816223066) internal successors, (8138), 3157 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) [2021-03-10 17:52:43,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3158 states to 3158 states and 8138 transitions. [2021-03-10 17:52:43,903 INFO L78 Accepts]: Start accepts. Automaton has 3158 states and 8138 transitions. Word has length 99 [2021-03-10 17:52:43,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:43,903 INFO L480 AbstractCegarLoop]: Abstraction has 3158 states and 8138 transitions. [2021-03-10 17:52:43,903 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:43,903 INFO L276 IsEmpty]: Start isEmpty. Operand 3158 states and 8138 transitions. [2021-03-10 17:52:43,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:43,906 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:43,906 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:43,906 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-03-10 17:52:43,906 INFO L428 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:43,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:43,907 INFO L82 PathProgramCache]: Analyzing trace with hash 1016963038, now seen corresponding path program 20 times [2021-03-10 17:52:43,907 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:43,907 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132848429] [2021-03-10 17:52:43,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:43,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:44,197 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:44,198 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [132848429] [2021-03-10 17:52:44,198 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:44,198 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:44,198 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156907969] [2021-03-10 17:52:44,198 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:44,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:44,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:44,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:44,199 INFO L87 Difference]: Start difference. First operand 3158 states and 8138 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:45,403 INFO L93 Difference]: Finished difference Result 4181 states and 10167 transitions. [2021-03-10 17:52:45,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:52:45,403 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:45,403 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:45,406 INFO L225 Difference]: With dead ends: 4181 [2021-03-10 17:52:45,407 INFO L226 Difference]: Without dead ends: 4181 [2021-03-10 17:52:45,407 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 925.6ms TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:52:45,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4181 states. [2021-03-10 17:52:45,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4181 to 3156. [2021-03-10 17:52:45,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3156 states, 3154 states have (on average 2.5786303107165502) internal successors, (8133), 3155 states have internal predecessors, (8133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,446 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3156 states to 3156 states and 8133 transitions. [2021-03-10 17:52:45,446 INFO L78 Accepts]: Start accepts. Automaton has 3156 states and 8133 transitions. Word has length 99 [2021-03-10 17:52:45,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:45,446 INFO L480 AbstractCegarLoop]: Abstraction has 3156 states and 8133 transitions. [2021-03-10 17:52:45,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:45,446 INFO L276 IsEmpty]: Start isEmpty. Operand 3156 states and 8133 transitions. [2021-03-10 17:52:45,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:45,449 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:45,449 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:45,449 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-03-10 17:52:45,449 INFO L428 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:45,449 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:45,449 INFO L82 PathProgramCache]: Analyzing trace with hash -1698907442, now seen corresponding path program 21 times [2021-03-10 17:52:45,449 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:45,449 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1025491806] [2021-03-10 17:52:45,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:45,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:45,750 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:45,750 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1025491806] [2021-03-10 17:52:45,750 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:45,750 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:45,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [358427125] [2021-03-10 17:52:45,750 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:45,751 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:45,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:45,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:45,751 INFO L87 Difference]: Start difference. First operand 3156 states and 8133 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:46,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:46,898 INFO L93 Difference]: Finished difference Result 4130 states and 10040 transitions. [2021-03-10 17:52:46,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2021-03-10 17:52:46,898 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:46,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:46,902 INFO L225 Difference]: With dead ends: 4130 [2021-03-10 17:52:46,902 INFO L226 Difference]: Without dead ends: 4130 [2021-03-10 17:52:46,903 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 1004.8ms TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:52:46,908 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4130 states. [2021-03-10 17:52:46,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4130 to 3142. [2021-03-10 17:52:46,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3142 states, 3140 states have (on average 2.578980891719745) internal successors, (8098), 3141 states have internal predecessors, (8098), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:46,946 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3142 states to 3142 states and 8098 transitions. [2021-03-10 17:52:46,946 INFO L78 Accepts]: Start accepts. Automaton has 3142 states and 8098 transitions. Word has length 99 [2021-03-10 17:52:46,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:46,946 INFO L480 AbstractCegarLoop]: Abstraction has 3142 states and 8098 transitions. [2021-03-10 17:52:46,946 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:46,946 INFO L276 IsEmpty]: Start isEmpty. Operand 3142 states and 8098 transitions. [2021-03-10 17:52:46,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:46,949 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:46,949 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:46,949 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-03-10 17:52:46,949 INFO L428 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:46,949 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:46,950 INFO L82 PathProgramCache]: Analyzing trace with hash 1962167456, now seen corresponding path program 3 times [2021-03-10 17:52:46,950 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:46,950 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1469572652] [2021-03-10 17:52:46,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:46,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:47,191 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:47,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1469572652] [2021-03-10 17:52:47,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:47,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [16] imperfect sequences [] total 16 [2021-03-10 17:52:47,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1022853035] [2021-03-10 17:52:47,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 16 states [2021-03-10 17:52:47,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:47,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2021-03-10 17:52:47,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2021-03-10 17:52:47,193 INFO L87 Difference]: Start difference. First operand 3142 states and 8098 transitions. Second operand has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:48,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:48,326 INFO L93 Difference]: Finished difference Result 3901 states and 9761 transitions. [2021-03-10 17:52:48,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-03-10 17:52:48,326 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:48,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:48,329 INFO L225 Difference]: With dead ends: 3901 [2021-03-10 17:52:48,329 INFO L226 Difference]: Without dead ends: 3824 [2021-03-10 17:52:48,330 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 916.0ms TimeCoverageRelationStatistics Valid=556, Invalid=1084, Unknown=0, NotChecked=0, Total=1640 [2021-03-10 17:52:48,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3824 states. [2021-03-10 17:52:48,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3824 to 2954. [2021-03-10 17:52:48,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2954 states, 2952 states have (on average 2.589092140921409) internal successors, (7643), 2953 states have internal predecessors, (7643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:48,361 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2954 states to 2954 states and 7643 transitions. [2021-03-10 17:52:48,361 INFO L78 Accepts]: Start accepts. Automaton has 2954 states and 7643 transitions. Word has length 99 [2021-03-10 17:52:48,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:48,361 INFO L480 AbstractCegarLoop]: Abstraction has 2954 states and 7643 transitions. [2021-03-10 17:52:48,361 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 16 states, 16 states have (on average 6.1875) internal successors, (99), 16 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:48,362 INFO L276 IsEmpty]: Start isEmpty. Operand 2954 states and 7643 transitions. [2021-03-10 17:52:48,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:48,364 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:48,364 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:48,364 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-03-10 17:52:48,364 INFO L428 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:48,364 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:48,364 INFO L82 PathProgramCache]: Analyzing trace with hash -1982450656, now seen corresponding path program 22 times [2021-03-10 17:52:48,364 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:48,364 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55252210] [2021-03-10 17:52:48,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:48,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:48,561 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:48,562 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55252210] [2021-03-10 17:52:48,562 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:48,562 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2021-03-10 17:52:48,562 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630782502] [2021-03-10 17:52:48,562 INFO L460 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-03-10 17:52:48,562 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:48,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-03-10 17:52:48,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2021-03-10 17:52:48,562 INFO L87 Difference]: Start difference. First operand 2954 states and 7643 transitions. Second operand has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:49,083 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:49,084 INFO L93 Difference]: Finished difference Result 3162 states and 8016 transitions. [2021-03-10 17:52:49,084 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-03-10 17:52:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:49,086 INFO L225 Difference]: With dead ends: 3162 [2021-03-10 17:52:49,087 INFO L226 Difference]: Without dead ends: 3162 [2021-03-10 17:52:49,087 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 440.7ms TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2021-03-10 17:52:49,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3162 states. [2021-03-10 17:52:49,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3162 to 2942. [2021-03-10 17:52:49,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2940 states have (on average 2.590816326530612) internal successors, (7617), 2941 states have internal predecessors, (7617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:49,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 7617 transitions. [2021-03-10 17:52:49,115 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 7617 transitions. Word has length 99 [2021-03-10 17:52:49,115 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:49,115 INFO L480 AbstractCegarLoop]: Abstraction has 2942 states and 7617 transitions. [2021-03-10 17:52:49,115 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.6) internal successors, (99), 15 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:49,116 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 7617 transitions. [2021-03-10 17:52:49,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:49,118 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:49,118 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:49,118 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-03-10 17:52:49,118 INFO L428 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:49,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:49,118 INFO L82 PathProgramCache]: Analyzing trace with hash -643751140, now seen corresponding path program 4 times [2021-03-10 17:52:49,118 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:49,118 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [934379000] [2021-03-10 17:52:49,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:49,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:49,364 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:49,364 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [934379000] [2021-03-10 17:52:49,364 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:49,364 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 17:52:49,364 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977182673] [2021-03-10 17:52:49,365 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 17:52:49,365 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:49,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 17:52:49,365 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=217, Unknown=0, NotChecked=0, Total=272 [2021-03-10 17:52:49,365 INFO L87 Difference]: Start difference. First operand 2942 states and 7617 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:50,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:50,401 INFO L93 Difference]: Finished difference Result 4487 states and 11310 transitions. [2021-03-10 17:52:50,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:52:50,401 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:50,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:50,406 INFO L225 Difference]: With dead ends: 4487 [2021-03-10 17:52:50,406 INFO L226 Difference]: Without dead ends: 4433 [2021-03-10 17:52:50,406 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 3 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 744.2ms TimeCoverageRelationStatistics Valid=411, Invalid=849, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:52:50,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4433 states. [2021-03-10 17:52:50,457 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4433 to 3305. [2021-03-10 17:52:50,459 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3305 states, 3303 states have (on average 2.602482591583409) internal successors, (8596), 3304 states have internal predecessors, (8596), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:50,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3305 states to 3305 states and 8596 transitions. [2021-03-10 17:52:50,464 INFO L78 Accepts]: Start accepts. Automaton has 3305 states and 8596 transitions. Word has length 99 [2021-03-10 17:52:50,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:50,465 INFO L480 AbstractCegarLoop]: Abstraction has 3305 states and 8596 transitions. [2021-03-10 17:52:50,465 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:50,465 INFO L276 IsEmpty]: Start isEmpty. Operand 3305 states and 8596 transitions. [2021-03-10 17:52:50,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:50,468 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:50,468 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:50,468 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-03-10 17:52:50,468 INFO L428 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:50,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:50,469 INFO L82 PathProgramCache]: Analyzing trace with hash 580475838, now seen corresponding path program 23 times [2021-03-10 17:52:50,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:50,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1305655683] [2021-03-10 17:52:50,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:50,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:50,751 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:50,752 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1305655683] [2021-03-10 17:52:50,752 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:50,752 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:50,752 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [469817842] [2021-03-10 17:52:50,752 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:50,752 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:50,752 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:50,753 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:50,753 INFO L87 Difference]: Start difference. First operand 3305 states and 8596 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:51,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:51,877 INFO L93 Difference]: Finished difference Result 4009 states and 10164 transitions. [2021-03-10 17:52:51,878 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:51,878 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:51,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:51,882 INFO L225 Difference]: With dead ends: 4009 [2021-03-10 17:52:51,882 INFO L226 Difference]: Without dead ends: 4009 [2021-03-10 17:52:51,882 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 910.9ms TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:51,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4009 states. [2021-03-10 17:52:51,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4009 to 3008. [2021-03-10 17:52:51,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3008 states, 3006 states have (on average 2.599800399201597) internal successors, (7815), 3007 states have internal predecessors, (7815), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:51,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3008 states to 3008 states and 7815 transitions. [2021-03-10 17:52:51,916 INFO L78 Accepts]: Start accepts. Automaton has 3008 states and 7815 transitions. Word has length 99 [2021-03-10 17:52:51,916 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:51,916 INFO L480 AbstractCegarLoop]: Abstraction has 3008 states and 7815 transitions. [2021-03-10 17:52:51,916 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:51,916 INFO L276 IsEmpty]: Start isEmpty. Operand 3008 states and 7815 transitions. [2021-03-10 17:52:51,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:51,918 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:51,918 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:51,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-03-10 17:52:51,918 INFO L428 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:51,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:51,919 INFO L82 PathProgramCache]: Analyzing trace with hash -1280636512, now seen corresponding path program 24 times [2021-03-10 17:52:51,919 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:51,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466011066] [2021-03-10 17:52:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:51,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:52,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:52,192 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466011066] [2021-03-10 17:52:52,192 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:52,192 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:52,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785992879] [2021-03-10 17:52:52,192 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:52,192 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:52,192 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:52,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:52,193 INFO L87 Difference]: Start difference. First operand 3008 states and 7815 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:53,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:53,399 INFO L93 Difference]: Finished difference Result 3802 states and 9639 transitions. [2021-03-10 17:52:53,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:52:53,400 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:53,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:53,403 INFO L225 Difference]: With dead ends: 3802 [2021-03-10 17:52:53,403 INFO L226 Difference]: Without dead ends: 3802 [2021-03-10 17:52:53,404 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 138 ImplicationChecksByTransitivity, 986.7ms TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:52:53,409 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3802 states. [2021-03-10 17:52:53,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3802 to 2975. [2021-03-10 17:52:53,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2975 states, 2973 states have (on average 2.5953582240161452) internal successors, (7716), 2974 states have internal predecessors, (7716), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:53,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2975 states to 2975 states and 7716 transitions. [2021-03-10 17:52:53,441 INFO L78 Accepts]: Start accepts. Automaton has 2975 states and 7716 transitions. Word has length 99 [2021-03-10 17:52:53,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:53,441 INFO L480 AbstractCegarLoop]: Abstraction has 2975 states and 7716 transitions. [2021-03-10 17:52:53,441 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:53,441 INFO L276 IsEmpty]: Start isEmpty. Operand 2975 states and 7716 transitions. [2021-03-10 17:52:53,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:53,443 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:53,444 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:53,444 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-03-10 17:52:53,444 INFO L428 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:53,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:53,444 INFO L82 PathProgramCache]: Analyzing trace with hash 1200535856, now seen corresponding path program 25 times [2021-03-10 17:52:53,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:53,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971148997] [2021-03-10 17:52:53,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:53,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:53,720 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:53,720 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971148997] [2021-03-10 17:52:53,721 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:53,721 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:53,721 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [863775409] [2021-03-10 17:52:53,721 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:53,721 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:53,721 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:53,721 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:53,721 INFO L87 Difference]: Start difference. First operand 2975 states and 7716 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:54,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:54,881 INFO L93 Difference]: Finished difference Result 3922 states and 9866 transitions. [2021-03-10 17:52:54,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:54,882 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:54,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:54,885 INFO L225 Difference]: With dead ends: 3922 [2021-03-10 17:52:54,885 INFO L226 Difference]: Without dead ends: 3922 [2021-03-10 17:52:54,885 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 964.0ms TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:54,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3922 states. [2021-03-10 17:52:54,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3922 to 2942. [2021-03-10 17:52:54,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2942 states, 2940 states have (on average 2.590816326530612) internal successors, (7617), 2941 states have internal predecessors, (7617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:54,915 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2942 states to 2942 states and 7617 transitions. [2021-03-10 17:52:54,915 INFO L78 Accepts]: Start accepts. Automaton has 2942 states and 7617 transitions. Word has length 99 [2021-03-10 17:52:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:54,915 INFO L480 AbstractCegarLoop]: Abstraction has 2942 states and 7617 transitions. [2021-03-10 17:52:54,915 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:54,915 INFO L276 IsEmpty]: Start isEmpty. Operand 2942 states and 7617 transitions. [2021-03-10 17:52:54,918 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:54,918 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:54,918 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:54,918 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-03-10 17:52:54,918 INFO L428 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:54,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:54,918 INFO L82 PathProgramCache]: Analyzing trace with hash -1282462560, now seen corresponding path program 26 times [2021-03-10 17:52:54,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:54,918 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005393539] [2021-03-10 17:52:54,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:54,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:55,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:55,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005393539] [2021-03-10 17:52:55,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:55,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:55,176 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1403825319] [2021-03-10 17:52:55,177 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:55,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:55,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:55,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:55,177 INFO L87 Difference]: Start difference. First operand 2942 states and 7617 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:56,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:56,063 INFO L93 Difference]: Finished difference Result 3554 states and 8834 transitions. [2021-03-10 17:52:56,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:52:56,063 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:56,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:56,067 INFO L225 Difference]: With dead ends: 3554 [2021-03-10 17:52:56,067 INFO L226 Difference]: Without dead ends: 3554 [2021-03-10 17:52:56,067 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 696.5ms TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:52:56,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3554 states. [2021-03-10 17:52:56,095 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3554 to 2960. [2021-03-10 17:52:56,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2960 states, 2958 states have (on average 2.59026369168357) internal successors, (7662), 2959 states have internal predecessors, (7662), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:56,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2960 states to 2960 states and 7662 transitions. [2021-03-10 17:52:56,102 INFO L78 Accepts]: Start accepts. Automaton has 2960 states and 7662 transitions. Word has length 99 [2021-03-10 17:52:56,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:56,102 INFO L480 AbstractCegarLoop]: Abstraction has 2960 states and 7662 transitions. [2021-03-10 17:52:56,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:56,102 INFO L276 IsEmpty]: Start isEmpty. Operand 2960 states and 7662 transitions. [2021-03-10 17:52:56,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:56,104 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:56,105 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:56,105 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-03-10 17:52:56,105 INFO L428 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:56,105 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:56,105 INFO L82 PathProgramCache]: Analyzing trace with hash -205091474, now seen corresponding path program 5 times [2021-03-10 17:52:56,105 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:56,105 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1318709928] [2021-03-10 17:52:56,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:56,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:56,370 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:56,370 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1318709928] [2021-03-10 17:52:56,370 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:56,370 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [17] imperfect sequences [] total 17 [2021-03-10 17:52:56,370 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [819741950] [2021-03-10 17:52:56,370 INFO L460 AbstractCegarLoop]: Interpolant automaton has 17 states [2021-03-10 17:52:56,371 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:56,371 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2021-03-10 17:52:56,371 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=207, Unknown=0, NotChecked=0, Total=272 [2021-03-10 17:52:56,371 INFO L87 Difference]: Start difference. First operand 2960 states and 7662 transitions. Second operand has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:57,353 INFO L93 Difference]: Finished difference Result 4264 states and 10820 transitions. [2021-03-10 17:52:57,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-03-10 17:52:57,353 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:57,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:57,357 INFO L225 Difference]: With dead ends: 4264 [2021-03-10 17:52:57,357 INFO L226 Difference]: Without dead ends: 4210 [2021-03-10 17:52:57,357 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 615.1ms TimeCoverageRelationStatistics Valid=444, Invalid=888, Unknown=0, NotChecked=0, Total=1332 [2021-03-10 17:52:57,362 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4210 states. [2021-03-10 17:52:57,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4210 to 2820. [2021-03-10 17:52:57,385 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 2818 states have (on average 2.6050390347764374) internal successors, (7341), 2819 states have internal predecessors, (7341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 7341 transitions. [2021-03-10 17:52:57,388 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 7341 transitions. Word has length 99 [2021-03-10 17:52:57,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:57,388 INFO L480 AbstractCegarLoop]: Abstraction has 2820 states and 7341 transitions. [2021-03-10 17:52:57,388 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 17 states, 17 states have (on average 5.823529411764706) internal successors, (99), 17 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:57,388 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 7341 transitions. [2021-03-10 17:52:57,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:57,391 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:57,391 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:57,391 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-03-10 17:52:57,391 INFO L428 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:57,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:57,391 INFO L82 PathProgramCache]: Analyzing trace with hash 1019135504, now seen corresponding path program 27 times [2021-03-10 17:52:57,391 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:57,391 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1986100403] [2021-03-10 17:52:57,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:57,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:57,642 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:57,642 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1986100403] [2021-03-10 17:52:57,642 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:57,642 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:57,642 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509845257] [2021-03-10 17:52:57,643 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:57,643 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:57,643 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:57,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:57,643 INFO L87 Difference]: Start difference. First operand 2820 states and 7341 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:58,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:52:58,705 INFO L93 Difference]: Finished difference Result 5055 states and 12712 transitions. [2021-03-10 17:52:58,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-03-10 17:52:58,705 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:52:58,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:52:58,709 INFO L225 Difference]: With dead ends: 5055 [2021-03-10 17:52:58,709 INFO L226 Difference]: Without dead ends: 5055 [2021-03-10 17:52:58,710 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 926.6ms TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2021-03-10 17:52:58,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5055 states. [2021-03-10 17:52:58,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5055 to 2853. [2021-03-10 17:52:58,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2853 states, 2851 states have (on average 2.6096106629252893) internal successors, (7440), 2852 states have internal predecessors, (7440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:58,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2853 states to 2853 states and 7440 transitions. [2021-03-10 17:52:58,746 INFO L78 Accepts]: Start accepts. Automaton has 2853 states and 7440 transitions. Word has length 99 [2021-03-10 17:52:58,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:52:58,746 INFO L480 AbstractCegarLoop]: Abstraction has 2853 states and 7440 transitions. [2021-03-10 17:52:58,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:52:58,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2853 states and 7440 transitions. [2021-03-10 17:52:58,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:52:58,749 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:52:58,749 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:52:58,749 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-03-10 17:52:58,749 INFO L428 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:52:58,749 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:52:58,749 INFO L82 PathProgramCache]: Analyzing trace with hash -841976846, now seen corresponding path program 28 times [2021-03-10 17:52:58,749 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:52:58,749 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1148224512] [2021-03-10 17:52:58,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:52:58,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:52:59,014 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:52:59,014 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1148224512] [2021-03-10 17:52:59,014 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:52:59,014 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:52:59,014 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007024538] [2021-03-10 17:52:59,014 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:52:59,014 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:52:59,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:52:59,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:52:59,015 INFO L87 Difference]: Start difference. First operand 2853 states and 7440 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:00,247 INFO L93 Difference]: Finished difference Result 4848 states and 12187 transitions. [2021-03-10 17:53:00,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:00,248 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:00,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:00,251 INFO L225 Difference]: With dead ends: 4848 [2021-03-10 17:53:00,251 INFO L226 Difference]: Without dead ends: 4848 [2021-03-10 17:53:00,251 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 135 ImplicationChecksByTransitivity, 1026.4ms TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2021-03-10 17:53:00,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4848 states. [2021-03-10 17:53:00,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4848 to 2820. [2021-03-10 17:53:00,279 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2820 states, 2818 states have (on average 2.6050390347764374) internal successors, (7341), 2819 states have internal predecessors, (7341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,283 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2820 states to 2820 states and 7341 transitions. [2021-03-10 17:53:00,283 INFO L78 Accepts]: Start accepts. Automaton has 2820 states and 7341 transitions. Word has length 99 [2021-03-10 17:53:00,283 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:00,283 INFO L480 AbstractCegarLoop]: Abstraction has 2820 states and 7341 transitions. [2021-03-10 17:53:00,283 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:00,283 INFO L276 IsEmpty]: Start isEmpty. Operand 2820 states and 7341 transitions. [2021-03-10 17:53:00,285 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:00,285 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:00,286 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:00,286 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-03-10 17:53:00,286 INFO L428 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:00,286 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:00,286 INFO L82 PathProgramCache]: Analyzing trace with hash 1639195522, now seen corresponding path program 29 times [2021-03-10 17:53:00,286 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:00,286 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1583472087] [2021-03-10 17:53:00,286 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:00,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:00,550 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:00,550 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1583472087] [2021-03-10 17:53:00,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:00,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:00,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990221027] [2021-03-10 17:53:00,550 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:00,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:00,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:00,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:00,551 INFO L87 Difference]: Start difference. First operand 2820 states and 7341 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:01,685 INFO L93 Difference]: Finished difference Result 4591 states and 11492 transitions. [2021-03-10 17:53:01,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:01,686 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:01,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:01,690 INFO L225 Difference]: With dead ends: 4591 [2021-03-10 17:53:01,690 INFO L226 Difference]: Without dead ends: 4591 [2021-03-10 17:53:01,690 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 955.5ms TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:01,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4591 states. [2021-03-10 17:53:01,718 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4591 to 2787. [2021-03-10 17:53:01,720 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2787 states, 2785 states have (on average 2.600359066427289) internal successors, (7242), 2786 states have internal predecessors, (7242), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 7242 transitions. [2021-03-10 17:53:01,723 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 7242 transitions. Word has length 99 [2021-03-10 17:53:01,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:01,723 INFO L480 AbstractCegarLoop]: Abstraction has 2787 states and 7242 transitions. [2021-03-10 17:53:01,723 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:01,723 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 7242 transitions. [2021-03-10 17:53:01,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:01,725 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:01,725 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:01,726 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-03-10 17:53:01,726 INFO L428 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:01,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:01,726 INFO L82 PathProgramCache]: Analyzing trace with hash -1270843932, now seen corresponding path program 30 times [2021-03-10 17:53:01,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:01,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127932981] [2021-03-10 17:53:01,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:01,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:02,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:02,012 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127932981] [2021-03-10 17:53:02,012 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:02,012 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:02,012 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1229028643] [2021-03-10 17:53:02,013 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:02,013 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:02,013 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:02,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:02,013 INFO L87 Difference]: Start difference. First operand 2787 states and 7242 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:03,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:03,636 INFO L93 Difference]: Finished difference Result 4494 states and 11215 transitions. [2021-03-10 17:53:03,636 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-03-10 17:53:03,636 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:03,636 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:03,640 INFO L225 Difference]: With dead ends: 4494 [2021-03-10 17:53:03,640 INFO L226 Difference]: Without dead ends: 4494 [2021-03-10 17:53:03,641 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 200 ImplicationChecksByTransitivity, 1365.6ms TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2021-03-10 17:53:03,646 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4494 states. [2021-03-10 17:53:03,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4494 to 2468. [2021-03-10 17:53:03,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2468 states, 2466 states have (on average 2.5932684509326847) internal successors, (6395), 2467 states have internal predecessors, (6395), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:03,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2468 states to 2468 states and 6395 transitions. [2021-03-10 17:53:03,670 INFO L78 Accepts]: Start accepts. Automaton has 2468 states and 6395 transitions. Word has length 99 [2021-03-10 17:53:03,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:03,670 INFO L480 AbstractCegarLoop]: Abstraction has 2468 states and 6395 transitions. [2021-03-10 17:53:03,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:03,671 INFO L276 IsEmpty]: Start isEmpty. Operand 2468 states and 6395 transitions. [2021-03-10 17:53:03,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:03,673 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:03,673 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:03,673 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-03-10 17:53:03,673 INFO L428 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:03,673 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:03,673 INFO L82 PathProgramCache]: Analyzing trace with hash 1163011014, now seen corresponding path program 31 times [2021-03-10 17:53:03,673 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:03,674 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [824561249] [2021-03-10 17:53:03,674 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:03,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:03,946 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:03,946 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [824561249] [2021-03-10 17:53:03,946 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:03,946 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:03,946 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2129541195] [2021-03-10 17:53:03,946 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:03,946 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:03,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:03,947 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:03,947 INFO L87 Difference]: Start difference. First operand 2468 states and 6395 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:05,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:05,648 INFO L93 Difference]: Finished difference Result 4287 states and 10690 transitions. [2021-03-10 17:53:05,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-03-10 17:53:05,648 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:05,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:05,652 INFO L225 Difference]: With dead ends: 4287 [2021-03-10 17:53:05,652 INFO L226 Difference]: Without dead ends: 4287 [2021-03-10 17:53:05,652 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 231 ImplicationChecksByTransitivity, 1442.7ms TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2021-03-10 17:53:05,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4287 states. [2021-03-10 17:53:05,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4287 to 2435. [2021-03-10 17:53:05,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2435 states, 2433 states have (on average 2.5877517468146323) internal successors, (6296), 2434 states have internal predecessors, (6296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:05,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2435 states to 2435 states and 6296 transitions. [2021-03-10 17:53:05,677 INFO L78 Accepts]: Start accepts. Automaton has 2435 states and 6296 transitions. Word has length 99 [2021-03-10 17:53:05,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:05,678 INFO L480 AbstractCegarLoop]: Abstraction has 2435 states and 6296 transitions. [2021-03-10 17:53:05,678 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:05,678 INFO L276 IsEmpty]: Start isEmpty. Operand 2435 states and 6296 transitions. [2021-03-10 17:53:05,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:05,679 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:05,680 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:05,680 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-03-10 17:53:05,680 INFO L428 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:05,680 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:05,680 INFO L82 PathProgramCache]: Analyzing trace with hash -1757131946, now seen corresponding path program 32 times [2021-03-10 17:53:05,680 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:05,680 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1673245725] [2021-03-10 17:53:05,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:05,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:05,948 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1673245725] [2021-03-10 17:53:05,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:05,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:05,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69486867] [2021-03-10 17:53:05,949 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:05,949 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:05,949 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:05,949 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:05,949 INFO L87 Difference]: Start difference. First operand 2435 states and 6296 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:07,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:07,206 INFO L93 Difference]: Finished difference Result 3782 states and 9416 transitions. [2021-03-10 17:53:07,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:53:07,207 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:07,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:07,210 INFO L225 Difference]: With dead ends: 3782 [2021-03-10 17:53:07,210 INFO L226 Difference]: Without dead ends: 3782 [2021-03-10 17:53:07,210 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 1040.1ms TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:07,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3782 states. [2021-03-10 17:53:07,228 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3782 to 2424. [2021-03-10 17:53:07,230 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2424 states, 2422 states have (on average 2.5858794384805948) internal successors, (6263), 2423 states have internal predecessors, (6263), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:07,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2424 states to 2424 states and 6263 transitions. [2021-03-10 17:53:07,232 INFO L78 Accepts]: Start accepts. Automaton has 2424 states and 6263 transitions. Word has length 99 [2021-03-10 17:53:07,232 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:07,232 INFO L480 AbstractCegarLoop]: Abstraction has 2424 states and 6263 transitions. [2021-03-10 17:53:07,232 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:07,233 INFO L276 IsEmpty]: Start isEmpty. Operand 2424 states and 6263 transitions. [2021-03-10 17:53:07,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:07,234 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:07,234 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:07,234 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-03-10 17:53:07,234 INFO L428 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:07,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:07,235 INFO L82 PathProgramCache]: Analyzing trace with hash 1309076978, now seen corresponding path program 33 times [2021-03-10 17:53:07,235 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:07,235 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620375609] [2021-03-10 17:53:07,235 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:07,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:07,506 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:07,506 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [620375609] [2021-03-10 17:53:07,506 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:07,506 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:07,506 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1908088989] [2021-03-10 17:53:07,506 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:07,506 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:07,507 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:07,507 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:07,507 INFO L87 Difference]: Start difference. First operand 2424 states and 6263 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:08,701 INFO L93 Difference]: Finished difference Result 3754 states and 9293 transitions. [2021-03-10 17:53:08,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:08,701 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:08,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:08,705 INFO L225 Difference]: With dead ends: 3754 [2021-03-10 17:53:08,705 INFO L226 Difference]: Without dead ends: 3754 [2021-03-10 17:53:08,706 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 893.3ms TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:08,710 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3754 states. [2021-03-10 17:53:08,741 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3754 to 2426. [2021-03-10 17:53:08,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2426 states, 2424 states have (on average 2.5858085808580857) internal successors, (6268), 2425 states have internal predecessors, (6268), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2426 states to 2426 states and 6268 transitions. [2021-03-10 17:53:08,746 INFO L78 Accepts]: Start accepts. Automaton has 2426 states and 6268 transitions. Word has length 99 [2021-03-10 17:53:08,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:08,746 INFO L480 AbstractCegarLoop]: Abstraction has 2426 states and 6268 transitions. [2021-03-10 17:53:08,746 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:08,746 INFO L276 IsEmpty]: Start isEmpty. Operand 2426 states and 6268 transitions. [2021-03-10 17:53:08,748 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:08,748 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:08,748 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:08,748 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-03-10 17:53:08,748 INFO L428 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:08,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:08,748 INFO L82 PathProgramCache]: Analyzing trace with hash -1538281018, now seen corresponding path program 34 times [2021-03-10 17:53:08,748 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:08,748 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626949805] [2021-03-10 17:53:08,749 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:09,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:09,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626949805] [2021-03-10 17:53:09,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:09,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:09,021 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1541117616] [2021-03-10 17:53:09,021 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:09,021 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:09,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:09,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:09,021 INFO L87 Difference]: Start difference. First operand 2426 states and 6268 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:10,324 INFO L93 Difference]: Finished difference Result 3706 states and 9190 transitions. [2021-03-10 17:53:10,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:53:10,324 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:10,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:10,327 INFO L225 Difference]: With dead ends: 3706 [2021-03-10 17:53:10,328 INFO L226 Difference]: Without dead ends: 3706 [2021-03-10 17:53:10,328 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 988.2ms TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:10,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3706 states. [2021-03-10 17:53:10,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3706 to 2413. [2021-03-10 17:53:10,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2413 states, 2411 states have (on average 2.583990045624222) internal successors, (6230), 2412 states have internal predecessors, (6230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2413 states to 2413 states and 6230 transitions. [2021-03-10 17:53:10,355 INFO L78 Accepts]: Start accepts. Automaton has 2413 states and 6230 transitions. Word has length 99 [2021-03-10 17:53:10,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:10,355 INFO L480 AbstractCegarLoop]: Abstraction has 2413 states and 6230 transitions. [2021-03-10 17:53:10,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:10,356 INFO L276 IsEmpty]: Start isEmpty. Operand 2413 states and 6230 transitions. [2021-03-10 17:53:10,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:10,357 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:10,358 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:10,358 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-03-10 17:53:10,358 INFO L428 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:10,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:10,358 INFO L82 PathProgramCache]: Analyzing trace with hash 1204326072, now seen corresponding path program 35 times [2021-03-10 17:53:10,358 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:10,358 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1874246443] [2021-03-10 17:53:10,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:10,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:10,635 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:10,636 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1874246443] [2021-03-10 17:53:10,636 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:10,636 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:10,636 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384586198] [2021-03-10 17:53:10,636 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:10,636 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:10,636 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:10,636 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:10,636 INFO L87 Difference]: Start difference. First operand 2413 states and 6230 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:11,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:11,521 INFO L93 Difference]: Finished difference Result 3273 states and 7987 transitions. [2021-03-10 17:53:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:11,521 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:11,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:11,524 INFO L225 Difference]: With dead ends: 3273 [2021-03-10 17:53:11,524 INFO L226 Difference]: Without dead ends: 3273 [2021-03-10 17:53:11,524 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 714.4ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:11,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3273 states. [2021-03-10 17:53:11,546 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3273 to 2419. [2021-03-10 17:53:11,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2417 states have (on average 2.583781547372776) internal successors, (6245), 2418 states have internal predecessors, (6245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:11,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 6245 transitions. [2021-03-10 17:53:11,550 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 6245 transitions. Word has length 99 [2021-03-10 17:53:11,550 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:11,550 INFO L480 AbstractCegarLoop]: Abstraction has 2419 states and 6245 transitions. [2021-03-10 17:53:11,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:11,551 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 6245 transitions. [2021-03-10 17:53:11,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:11,552 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:11,552 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:11,552 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-03-10 17:53:11,553 INFO L428 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:11,553 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:11,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1769962366, now seen corresponding path program 36 times [2021-03-10 17:53:11,553 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:11,553 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533941299] [2021-03-10 17:53:11,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:11,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:11,830 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:11,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [533941299] [2021-03-10 17:53:11,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:11,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:11,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111129361] [2021-03-10 17:53:11,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:11,830 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:11,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:11,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:11,831 INFO L87 Difference]: Start difference. First operand 2419 states and 6245 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:12,671 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:12,672 INFO L93 Difference]: Finished difference Result 3232 states and 7871 transitions. [2021-03-10 17:53:12,672 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:12,672 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:12,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:12,675 INFO L225 Difference]: With dead ends: 3232 [2021-03-10 17:53:12,675 INFO L226 Difference]: Without dead ends: 3232 [2021-03-10 17:53:12,675 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 715.0ms TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:12,680 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3232 states. [2021-03-10 17:53:12,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3232 to 2421. [2021-03-10 17:53:12,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2421 states, 2419 states have (on average 2.583712277800744) internal successors, (6250), 2420 states have internal predecessors, (6250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:12,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2421 states to 2421 states and 6250 transitions. [2021-03-10 17:53:12,703 INFO L78 Accepts]: Start accepts. Automaton has 2421 states and 6250 transitions. Word has length 99 [2021-03-10 17:53:12,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:12,703 INFO L480 AbstractCegarLoop]: Abstraction has 2421 states and 6250 transitions. [2021-03-10 17:53:12,703 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:12,703 INFO L276 IsEmpty]: Start isEmpty. Operand 2421 states and 6250 transitions. [2021-03-10 17:53:12,705 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:12,705 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:12,705 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:12,705 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-03-10 17:53:12,705 INFO L428 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:12,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:12,705 INFO L82 PathProgramCache]: Analyzing trace with hash -322353066, now seen corresponding path program 37 times [2021-03-10 17:53:12,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:12,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1147940659] [2021-03-10 17:53:12,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:12,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:12,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:12,986 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1147940659] [2021-03-10 17:53:12,986 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:12,986 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:12,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1885366939] [2021-03-10 17:53:12,986 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:12,986 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:12,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:12,986 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:12,987 INFO L87 Difference]: Start difference. First operand 2421 states and 6250 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:13,947 INFO L93 Difference]: Finished difference Result 3084 states and 7573 transitions. [2021-03-10 17:53:13,947 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:53:13,947 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:13,947 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:13,949 INFO L225 Difference]: With dead ends: 3084 [2021-03-10 17:53:13,949 INFO L226 Difference]: Without dead ends: 3084 [2021-03-10 17:53:13,950 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 803.3ms TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:13,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3084 states. [2021-03-10 17:53:13,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3084 to 2419. [2021-03-10 17:53:13,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2419 states, 2417 states have (on average 2.583781547372776) internal successors, (6245), 2418 states have internal predecessors, (6245), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2419 states to 2419 states and 6245 transitions. [2021-03-10 17:53:13,973 INFO L78 Accepts]: Start accepts. Automaton has 2419 states and 6245 transitions. Word has length 99 [2021-03-10 17:53:13,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:13,973 INFO L480 AbstractCegarLoop]: Abstraction has 2419 states and 6245 transitions. [2021-03-10 17:53:13,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:13,974 INFO L276 IsEmpty]: Start isEmpty. Operand 2419 states and 6245 transitions. [2021-03-10 17:53:13,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:13,975 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:13,975 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:13,975 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-03-10 17:53:13,976 INFO L428 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:13,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:13,976 INFO L82 PathProgramCache]: Analyzing trace with hash -247790366, now seen corresponding path program 38 times [2021-03-10 17:53:13,976 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:13,976 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533181066] [2021-03-10 17:53:13,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:13,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:14,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:14,237 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533181066] [2021-03-10 17:53:14,237 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:14,237 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:14,237 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431236111] [2021-03-10 17:53:14,237 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:14,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:14,237 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:14,238 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:14,238 INFO L87 Difference]: Start difference. First operand 2419 states and 6245 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:15,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:15,008 INFO L93 Difference]: Finished difference Result 2895 states and 7211 transitions. [2021-03-10 17:53:15,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:15,008 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:15,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:15,011 INFO L225 Difference]: With dead ends: 2895 [2021-03-10 17:53:15,011 INFO L226 Difference]: Without dead ends: 2895 [2021-03-10 17:53:15,012 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 640.3ms TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:15,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2895 states. [2021-03-10 17:53:15,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2895 to 2401. [2021-03-10 17:53:15,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2401 states, 2399 states have (on average 2.5844101709045435) internal successors, (6200), 2400 states have internal predecessors, (6200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:15,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2401 states to 2401 states and 6200 transitions. [2021-03-10 17:53:15,037 INFO L78 Accepts]: Start accepts. Automaton has 2401 states and 6200 transitions. Word has length 99 [2021-03-10 17:53:15,037 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:15,037 INFO L480 AbstractCegarLoop]: Abstraction has 2401 states and 6200 transitions. [2021-03-10 17:53:15,037 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:15,037 INFO L276 IsEmpty]: Start isEmpty. Operand 2401 states and 6200 transitions. [2021-03-10 17:53:15,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:15,039 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:15,039 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:15,039 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-03-10 17:53:15,039 INFO L428 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:15,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:15,039 INFO L82 PathProgramCache]: Analyzing trace with hash 1072888492, now seen corresponding path program 39 times [2021-03-10 17:53:15,039 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:15,039 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011754987] [2021-03-10 17:53:15,039 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:15,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:15,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:15,316 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011754987] [2021-03-10 17:53:15,316 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:15,316 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:15,316 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [893983487] [2021-03-10 17:53:15,316 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:15,316 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:15,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:15,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:15,317 INFO L87 Difference]: Start difference. First operand 2401 states and 6200 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:16,146 INFO L93 Difference]: Finished difference Result 3212 states and 7852 transitions. [2021-03-10 17:53:16,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:16,146 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:16,147 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:16,149 INFO L225 Difference]: With dead ends: 3212 [2021-03-10 17:53:16,149 INFO L226 Difference]: Without dead ends: 3212 [2021-03-10 17:53:16,149 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 689.0ms TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:16,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3212 states. [2021-03-10 17:53:16,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3212 to 2403. [2021-03-10 17:53:16,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2403 states, 2401 states have (on average 2.5843398583923367) internal successors, (6205), 2402 states have internal predecessors, (6205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2403 states to 2403 states and 6205 transitions. [2021-03-10 17:53:16,173 INFO L78 Accepts]: Start accepts. Automaton has 2403 states and 6205 transitions. Word has length 99 [2021-03-10 17:53:16,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:16,173 INFO L480 AbstractCegarLoop]: Abstraction has 2403 states and 6205 transitions. [2021-03-10 17:53:16,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:16,174 INFO L276 IsEmpty]: Start isEmpty. Operand 2403 states and 6205 transitions. [2021-03-10 17:53:16,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:16,175 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:16,175 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:16,175 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-03-10 17:53:16,176 INFO L428 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:16,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:16,176 INFO L82 PathProgramCache]: Analyzing trace with hash -1774469504, now seen corresponding path program 40 times [2021-03-10 17:53:16,176 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:16,176 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1004555662] [2021-03-10 17:53:16,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:16,428 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:16,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1004555662] [2021-03-10 17:53:16,428 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:16,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:16,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1270849545] [2021-03-10 17:53:16,428 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:16,428 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:16,429 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:16,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:16,429 INFO L87 Difference]: Start difference. First operand 2403 states and 6205 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:17,325 INFO L93 Difference]: Finished difference Result 3071 states and 7561 transitions. [2021-03-10 17:53:17,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:17,325 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:17,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:17,328 INFO L225 Difference]: With dead ends: 3071 [2021-03-10 17:53:17,328 INFO L226 Difference]: Without dead ends: 3071 [2021-03-10 17:53:17,328 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 728.9ms TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:17,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3071 states. [2021-03-10 17:53:17,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3071 to 2395. [2021-03-10 17:53:17,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2395 states, 2393 states have (on average 2.5846218136230674) internal successors, (6185), 2394 states have internal predecessors, (6185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2395 states to 2395 states and 6185 transitions. [2021-03-10 17:53:17,353 INFO L78 Accepts]: Start accepts. Automaton has 2395 states and 6185 transitions. Word has length 99 [2021-03-10 17:53:17,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:17,353 INFO L480 AbstractCegarLoop]: Abstraction has 2395 states and 6185 transitions. [2021-03-10 17:53:17,353 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:17,353 INFO L276 IsEmpty]: Start isEmpty. Operand 2395 states and 6185 transitions. [2021-03-10 17:53:17,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:17,355 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:17,355 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:17,355 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-03-10 17:53:17,355 INFO L428 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:17,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:17,355 INFO L82 PathProgramCache]: Analyzing trace with hash 846186014, now seen corresponding path program 41 times [2021-03-10 17:53:17,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:17,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912721808] [2021-03-10 17:53:17,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:17,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:17,617 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:17,617 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912721808] [2021-03-10 17:53:17,617 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:17,617 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:17,617 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2092161130] [2021-03-10 17:53:17,617 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:17,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:17,618 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:17,618 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:17,618 INFO L87 Difference]: Start difference. First operand 2395 states and 6185 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:18,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:18,445 INFO L93 Difference]: Finished difference Result 2869 states and 7120 transitions. [2021-03-10 17:53:18,445 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-03-10 17:53:18,445 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:18,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:18,447 INFO L225 Difference]: With dead ends: 2869 [2021-03-10 17:53:18,447 INFO L226 Difference]: Without dead ends: 2869 [2021-03-10 17:53:18,448 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 144 ImplicationChecksByTransitivity, 695.4ms TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2021-03-10 17:53:18,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2869 states. [2021-03-10 17:53:18,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2869 to 2389. [2021-03-10 17:53:18,466 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2389 states, 2387 states have (on average 2.5848345203183913) internal successors, (6170), 2388 states have internal predecessors, (6170), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:18,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2389 states to 2389 states and 6170 transitions. [2021-03-10 17:53:18,468 INFO L78 Accepts]: Start accepts. Automaton has 2389 states and 6170 transitions. Word has length 99 [2021-03-10 17:53:18,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:18,468 INFO L480 AbstractCegarLoop]: Abstraction has 2389 states and 6170 transitions. [2021-03-10 17:53:18,468 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:18,468 INFO L276 IsEmpty]: Start isEmpty. Operand 2389 states and 6170 transitions. [2021-03-10 17:53:18,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:18,470 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:18,470 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:18,470 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-03-10 17:53:18,470 INFO L428 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:18,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:18,470 INFO L82 PathProgramCache]: Analyzing trace with hash -2001171982, now seen corresponding path program 42 times [2021-03-10 17:53:18,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:18,471 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1574792572] [2021-03-10 17:53:18,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:18,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:18,742 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:18,742 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1574792572] [2021-03-10 17:53:18,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:18,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:18,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [858521521] [2021-03-10 17:53:18,743 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:18,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:18,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:18,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:18,743 INFO L87 Difference]: Start difference. First operand 2389 states and 6170 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:19,677 INFO L93 Difference]: Finished difference Result 3043 states and 7465 transitions. [2021-03-10 17:53:19,678 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-03-10 17:53:19,678 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:19,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:19,680 INFO L225 Difference]: With dead ends: 3043 [2021-03-10 17:53:19,680 INFO L226 Difference]: Without dead ends: 3043 [2021-03-10 17:53:19,681 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 776.7ms TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2021-03-10 17:53:19,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3043 states. [2021-03-10 17:53:19,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3043 to 2387. [2021-03-10 17:53:19,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2387 states, 2385 states have (on average 2.5849056603773586) internal successors, (6165), 2386 states have internal predecessors, (6165), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2387 states to 2387 states and 6165 transitions. [2021-03-10 17:53:19,704 INFO L78 Accepts]: Start accepts. Automaton has 2387 states and 6165 transitions. Word has length 99 [2021-03-10 17:53:19,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:19,704 INFO L480 AbstractCegarLoop]: Abstraction has 2387 states and 6165 transitions. [2021-03-10 17:53:19,704 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:19,704 INFO L276 IsEmpty]: Start isEmpty. Operand 2387 states and 6165 transitions. [2021-03-10 17:53:19,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2021-03-10 17:53:19,706 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:19,706 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:19,706 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-03-10 17:53:19,706 INFO L428 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:19,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:19,706 INFO L82 PathProgramCache]: Analyzing trace with hash -422075166, now seen corresponding path program 43 times [2021-03-10 17:53:19,706 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:19,706 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1767584099] [2021-03-10 17:53:19,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:19,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-10 17:53:19,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-10 17:53:19,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1767584099] [2021-03-10 17:53:19,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-10 17:53:19,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-03-10 17:53:19,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396673661] [2021-03-10 17:53:19,993 INFO L460 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-03-10 17:53:19,993 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-10 17:53:19,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-03-10 17:53:19,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-03-10 17:53:19,994 INFO L87 Difference]: Start difference. First operand 2387 states and 6165 transitions. Second operand has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:20,993 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-10 17:53:20,993 INFO L93 Difference]: Finished difference Result 2719 states and 6817 transitions. [2021-03-10 17:53:20,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-03-10 17:53:20,994 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 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 99 [2021-03-10 17:53:20,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-10 17:53:20,996 INFO L225 Difference]: With dead ends: 2719 [2021-03-10 17:53:20,996 INFO L226 Difference]: Without dead ends: 2719 [2021-03-10 17:53:20,996 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 855.0ms TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2021-03-10 17:53:21,000 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2719 states. [2021-03-10 17:53:21,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2719 to 2260. [2021-03-10 17:53:21,015 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2260 states, 2259 states have (on average 2.6126604692341746) internal successors, (5902), 2259 states have internal predecessors, (5902), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:21,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2260 states to 2260 states and 5902 transitions. [2021-03-10 17:53:21,017 INFO L78 Accepts]: Start accepts. Automaton has 2260 states and 5902 transitions. Word has length 99 [2021-03-10 17:53:21,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-10 17:53:21,018 INFO L480 AbstractCegarLoop]: Abstraction has 2260 states and 5902 transitions. [2021-03-10 17:53:21,018 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.5) internal successors, (99), 18 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-10 17:53:21,018 INFO L276 IsEmpty]: Start isEmpty. Operand 2260 states and 5902 transitions. [2021-03-10 17:53:21,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2021-03-10 17:53:21,019 INFO L511 BasicCegarLoop]: Found error trace [2021-03-10 17:53:21,019 INFO L519 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-10 17:53:21,020 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-03-10 17:53:21,020 INFO L428 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-03-10 17:53:21,020 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-10 17:53:21,020 INFO L82 PathProgramCache]: Analyzing trace with hash -1772926506, now seen corresponding path program 1 times [2021-03-10 17:53:21,020 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-10 17:53:21,020 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1916395980] [2021-03-10 17:53:21,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-10 17:53:21,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 17:53:21,035 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 17:53:21,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-03-10 17:53:21,050 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-03-10 17:53:21,085 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-03-10 17:53:21,085 INFO L620 BasicCegarLoop]: Counterexample might be feasible [2021-03-10 17:53:21,085 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-03-10 17:53:21,159 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.03 05:53:21 BasicIcfg [2021-03-10 17:53:21,159 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-10 17:53:21,159 INFO L168 Benchmark]: Toolchain (without parser) took 70151.44 ms. Allocated memory was 255.9 MB in the beginning and 1.2 GB in the end (delta: 920.6 MB). Free memory was 233.2 MB in the beginning and 893.3 MB in the end (delta: -660.1 MB). Peak memory consumption was 261.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:53:21,159 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-03-10 17:53:21,159 INFO L168 Benchmark]: CACSL2BoogieTranslator took 616.28 ms. Allocated memory was 255.9 MB in the beginning and 392.2 MB in the end (delta: 136.3 MB). Free memory was 232.6 MB in the beginning and 341.3 MB in the end (delta: -108.7 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:53:21,160 INFO L168 Benchmark]: Boogie Procedure Inliner took 71.38 ms. Allocated memory is still 392.2 MB. Free memory was 341.3 MB in the beginning and 337.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:53:21,160 INFO L168 Benchmark]: Boogie Preprocessor took 55.53 ms. Allocated memory is still 392.2 MB. Free memory was 337.1 MB in the beginning and 335.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-10 17:53:21,160 INFO L168 Benchmark]: RCFGBuilder took 565.40 ms. Allocated memory is still 392.2 MB. Free memory was 335.0 MB in the beginning and 351.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.0 GB. [2021-03-10 17:53:21,160 INFO L168 Benchmark]: TraceAbstraction took 68834.60 ms. Allocated memory was 392.2 MB in the beginning and 1.2 GB in the end (delta: 784.3 MB). Free memory was 351.1 MB in the beginning and 893.3 MB in the end (delta: -542.2 MB). Peak memory consumption was 243.2 MB. Max. memory is 16.0 GB. [2021-03-10 17:53:21,160 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 616.28 ms. Allocated memory was 255.9 MB in the beginning and 392.2 MB in the end (delta: 136.3 MB). Free memory was 232.6 MB in the beginning and 341.3 MB in the end (delta: -108.7 MB). Peak memory consumption was 56.1 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 71.38 ms. Allocated memory is still 392.2 MB. Free memory was 341.3 MB in the beginning and 337.1 MB in the end (delta: 4.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 55.53 ms. Allocated memory is still 392.2 MB. Free memory was 337.1 MB in the beginning and 335.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 565.40 ms. Allocated memory is still 392.2 MB. Free memory was 335.0 MB in the beginning and 351.1 MB in the end (delta: -16.1 MB). Peak memory consumption was 35.7 MB. Max. memory is 16.0 GB. * TraceAbstraction took 68834.60 ms. Allocated memory was 392.2 MB in the beginning and 1.2 GB in the end (delta: 784.3 MB). Free memory was 351.1 MB in the beginning and 893.3 MB in the end (delta: -542.2 MB). Peak memory consumption was 243.2 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={7:0}, t2={8:0}] [L1688] 0 struct device *my_dev; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1727] 0 return 0; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1733] 0 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1734] COND TRUE 0 ret==0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1735] 0 int probe_ret; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1736] 0 struct my_data data; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1705] 0 data->shared.a = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1706] 0 data->shared.b = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1707] 0 data->shared.a VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1708] 0 data->shared.b VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1709] 0 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1710] COND FALSE 0 !(\read(res)) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1712] 0 my_dev = &data->dev VAL [my_dev={9:24}, t1={7:0}, t2={8:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 1 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 2 struct my_data *data; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1699] 2 data->shared.b = lb + 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1715] 0 return 0; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 2 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1699] 1 data->shared.b = lb + 1 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 1 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1737] 0 probe_ret = my_drv_probe(&data) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1738] COND TRUE 0 probe_ret==0 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1740] 0 data.shared.a VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1741] 0 data.shared.b VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND TRUE 0 !expression VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] 0 reach_error() VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 136 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 68684.6ms, OverallIterations: 54, TraceHistogramMax: 1, EmptinessCheckTime: 162.0ms, AutomataDifference: 52186.3ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 108.4ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 9643 SDtfs, 27893 SDslu, 57498 SDs, 0 SdLazy, 29428 SolverSat, 2455 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 13642.5ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1838 GetRequests, 180 SyntacticMatches, 62 SemanticMatches, 1596 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7120 ImplicationChecksByTransitivity, 41609.5ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=4193occurred in iteration=4, InterpolantAutomatonStates: 1079, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2120.4ms AutomataMinimizationTime, 53 MinimizatonAttempts, 52024 StatesRemovedByMinimization, 52 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 98.4ms SsaConstructionTime, 630.8ms SatisfiabilityAnalysisTime, 12792.2ms InterpolantComputationTime, 5133 NumberOfCodeBlocks, 5133 NumberOfCodeBlocksAsserted, 54 NumberOfCheckSat, 4975 ConstructedInterpolants, 0 QuantifiedInterpolants, 64373 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 53 InterpolantComputations, 53 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 proved your program to be incorrect! Received shutdown request...