/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-e5469eb [2021-01-20 15:07:41,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-01-20 15:07:41,849 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-01-20 15:07:41,899 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-01-20 15:07:41,900 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-01-20 15:07:41,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-01-20 15:07:41,908 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-01-20 15:07:41,915 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-01-20 15:07:41,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-01-20 15:07:41,924 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-01-20 15:07:41,925 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-01-20 15:07:41,926 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-01-20 15:07:41,927 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-01-20 15:07:41,930 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-01-20 15:07:41,931 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-01-20 15:07:41,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-01-20 15:07:41,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-01-20 15:07:41,937 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-01-20 15:07:41,943 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-01-20 15:07:41,951 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-01-20 15:07:41,953 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-01-20 15:07:41,954 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-01-20 15:07:41,956 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-01-20 15:07:41,958 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-01-20 15:07:41,966 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-01-20 15:07:41,967 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-01-20 15:07:41,967 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-01-20 15:07:41,969 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-01-20 15:07:41,970 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-01-20 15:07:41,971 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-01-20 15:07:41,971 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-01-20 15:07:41,972 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-01-20 15:07:41,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-01-20 15:07:41,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-01-20 15:07:41,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-01-20 15:07:41,976 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-01-20 15:07:41,977 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-01-20 15:07:41,977 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-01-20 15:07:41,977 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-01-20 15:07:41,978 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-01-20 15:07:41,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-01-20 15:07:41,979 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 [2021-01-20 15:07:42,031 INFO L113 SettingsManager]: Loading preferences was successful [2021-01-20 15:07:42,031 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-01-20 15:07:42,036 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-01-20 15:07:42,036 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-01-20 15:07:42,037 INFO L138 SettingsManager]: * Use SBE=true [2021-01-20 15:07:42,037 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-01-20 15:07:42,037 INFO L138 SettingsManager]: * sizeof long=4 [2021-01-20 15:07:42,037 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-01-20 15:07:42,037 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-01-20 15:07:42,038 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-01-20 15:07:42,039 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-01-20 15:07:42,039 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-01-20 15:07:42,040 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-01-20 15:07:42,040 INFO L138 SettingsManager]: * sizeof long double=12 [2021-01-20 15:07:42,040 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-01-20 15:07:42,040 INFO L138 SettingsManager]: * Use constant arrays=true [2021-01-20 15:07:42,040 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-01-20 15:07:42,041 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-01-20 15:07:42,041 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-01-20 15:07:42,041 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-01-20 15:07:42,041 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-01-20 15:07:42,042 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-01-20 15:07:42,042 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-01-20 15:07:42,042 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-01-20 15:07:42,042 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-01-20 15:07:42,043 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-01-20 15:07:42,043 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-01-20 15:07:42,043 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-01-20 15:07:42,043 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-01-20 15:07:42,043 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2021-01-20 15:07:42,044 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-01-20 15:07:42,437 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-01-20 15:07:42,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-01-20 15:07:42,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-01-20 15:07:42,475 INFO L271 PluginConnector]: Initializing CDTParser... [2021-01-20 15:07:42,476 INFO L275 PluginConnector]: CDTParser initialized [2021-01-20 15:07:42,477 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-01-20 15:07:42,568 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13a77e45/6afba80d3f8443a1a742988580f17fd2/FLAGe631d6370 [2021-01-20 15:07:43,392 INFO L306 CDTParser]: Found 1 translation units. [2021-01-20 15:07:43,392 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_2-container_of.i [2021-01-20 15:07:43,433 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13a77e45/6afba80d3f8443a1a742988580f17fd2/FLAGe631d6370 [2021-01-20 15:07:43,595 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13a77e45/6afba80d3f8443a1a742988580f17fd2 [2021-01-20 15:07:43,600 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-01-20 15:07:43,603 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-01-20 15:07:43,607 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-01-20 15:07:43,608 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-01-20 15:07:43,611 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-01-20 15:07:43,612 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 03:07:43" (1/1) ... [2021-01-20 15:07:43,620 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@759b8c6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:43, skipping insertion in model container [2021-01-20 15:07:43,621 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.01 03:07:43" (1/1) ... [2021-01-20 15:07:43,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-01-20 15:07:43,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-01-20 15:07:43,922 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 15:07:44,511 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 15:07:44,529 INFO L203 MainTranslator]: Completed pre-run [2021-01-20 15:07:44,546 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2021-01-20 15:07:44,642 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-01-20 15:07:45,168 INFO L208 MainTranslator]: Completed translation [2021-01-20 15:07:45,168 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45 WrapperNode [2021-01-20 15:07:45,171 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-01-20 15:07:45,173 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-01-20 15:07:45,174 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-01-20 15:07:45,174 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-01-20 15:07:45,184 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,248 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,297 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-01-20 15:07:45,298 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-01-20 15:07:45,298 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-01-20 15:07:45,298 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-01-20 15:07:45,307 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,326 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,359 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,362 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,373 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (1/1) ... [2021-01-20 15:07:45,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-01-20 15:07:45,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-01-20 15:07:45,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-01-20 15:07:45,389 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-01-20 15:07:45,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (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 [2021-01-20 15:07:45,466 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2021-01-20 15:07:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-01-20 15:07:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2021-01-20 15:07:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-01-20 15:07:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-01-20 15:07:45,467 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-01-20 15:07:45,467 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-01-20 15:07:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2021-01-20 15:07:45,468 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2021-01-20 15:07:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-01-20 15:07:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-01-20 15:07:45,468 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-01-20 15:07:45,470 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-01-20 15:07:46,164 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-01-20 15:07:46,165 INFO L298 CfgBuilder]: Removed 28 assume(true) statements. [2021-01-20 15:07:46,167 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 03:07:46 BoogieIcfgContainer [2021-01-20 15:07:46,167 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-01-20 15:07:46,169 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-01-20 15:07:46,169 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-01-20 15:07:46,173 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-01-20 15:07:46,173 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.01 03:07:43" (1/3) ... [2021-01-20 15:07:46,174 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2645b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 03:07:46, skipping insertion in model container [2021-01-20 15:07:46,174 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.01 03:07:45" (2/3) ... [2021-01-20 15:07:46,175 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2645b255 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.01 03:07:46, skipping insertion in model container [2021-01-20 15:07:46,175 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.01 03:07:46" (3/3) ... [2021-01-20 15:07:46,177 INFO L111 eAbstractionObserver]: Analyzing ICFG race-2_2-container_of.i [2021-01-20 15:07:46,195 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-01-20 15:07:46,196 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-01-20 15:07:46,201 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2021-01-20 15:07:46,202 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-01-20 15:07:46,242 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,242 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,243 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,243 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,243 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,243 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,244 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,244 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,244 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,244 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,245 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,245 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,245 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,245 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,245 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,246 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,246 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,246 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,246 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,246 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,247 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,247 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,247 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,247 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,247 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,248 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,248 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,248 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,248 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,248 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,249 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,249 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,249 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,249 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,249 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,250 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,250 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,250 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,251 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,251 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,251 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,251 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,252 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,252 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,252 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,252 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,252 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,252 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,253 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,253 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,253 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,254 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,254 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,254 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,254 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,255 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,255 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,255 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,255 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,256 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,256 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,256 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,256 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,256 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,257 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,257 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,257 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,257 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,257 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,258 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,258 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,258 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,258 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,258 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,258 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,259 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,259 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,259 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,259 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,259 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,260 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,260 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,260 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,260 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,260 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,261 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,261 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,261 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,261 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,261 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,262 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,262 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,262 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,262 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,262 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,263 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,263 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,263 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,263 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,264 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,264 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,264 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,264 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,265 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,265 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,265 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,265 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,265 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,266 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,266 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,266 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,266 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,267 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,267 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,267 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,267 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,270 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,270 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,270 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,270 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,271 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,271 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,271 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,271 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,272 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,272 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,272 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,272 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,277 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,277 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,277 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,278 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,278 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,278 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,278 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,279 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,279 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,279 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,279 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,279 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~dev~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-01-20 15:07:46,292 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-01-20 15:07:46,306 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2021-01-20 15:07:46,354 INFO L377 AbstractCegarLoop]: Interprodecural is true [2021-01-20 15:07:46,354 INFO L378 AbstractCegarLoop]: Hoare is true [2021-01-20 15:07:46,354 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-01-20 15:07:46,354 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-01-20 15:07:46,354 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-01-20 15:07:46,355 INFO L382 AbstractCegarLoop]: Difference is false [2021-01-20 15:07:46,355 INFO L383 AbstractCegarLoop]: Minimize is NONE [2021-01-20 15:07:46,355 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-01-20 15:07:46,371 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 147 places, 153 transitions, 328 flow [2021-01-20 15:07:46,703 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 5697 states, 5688 states have (on average 2.8306962025316458) internal successors, (16101), 5696 states have internal predecessors, (16101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:46,727 INFO L276 IsEmpty]: Start isEmpty. Operand has 5697 states, 5688 states have (on average 2.8306962025316458) internal successors, (16101), 5696 states have internal predecessors, (16101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:46,746 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2021-01-20 15:07:46,746 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:07:46,747 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:07:46,748 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:07:46,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:07:46,754 INFO L82 PathProgramCache]: Analyzing trace with hash 1850903132, now seen corresponding path program 1 times [2021-01-20 15:07:46,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:07:46,765 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1579239289] [2021-01-20 15:07:46,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:07:47,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:07:47,372 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:07:47,373 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1579239289] [2021-01-20 15:07:47,373 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:07:47,374 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 15:07:47,375 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383591988] [2021-01-20 15:07:47,380 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 15:07:47,380 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:07:47,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 15:07:47,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 15:07:47,430 INFO L87 Difference]: Start difference. First operand has 5697 states, 5688 states have (on average 2.8306962025316458) internal successors, (16101), 5696 states have internal predecessors, (16101), 0 states have call successors, (0), 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 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:47,983 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:07:47,984 INFO L93 Difference]: Finished difference Result 7276 states and 19867 transitions. [2021-01-20 15:07:47,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-01-20 15:07:47,988 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 50 [2021-01-20 15:07:47,988 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:07:48,067 INFO L225 Difference]: With dead ends: 7276 [2021-01-20 15:07:48,067 INFO L226 Difference]: Without dead ends: 6157 [2021-01-20 15:07:48,071 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2021-01-20 15:07:48,072 INFO L78 Accepts]: Start accepts. Automaton has 6157 states. Word has length 50 [2021-01-20 15:07:48,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:07:48,074 INFO L481 AbstractCegarLoop]: Abstraction has 6157 states. [2021-01-20 15:07:48,075 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 8.333333333333334) internal successors, (50), 6 states have internal predecessors, (50), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:48,075 INFO L276 IsEmpty]: Start isEmpty. Operand 6157 states. [2021-01-20 15:07:48,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-01-20 15:07:48,092 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:07:48,092 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:07:48,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-01-20 15:07:48,093 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:07:48,095 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:07:48,095 INFO L82 PathProgramCache]: Analyzing trace with hash 206446332, now seen corresponding path program 1 times [2021-01-20 15:07:48,096 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:07:48,096 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [530977504] [2021-01-20 15:07:48,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:07:48,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:07:48,302 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:07:48,302 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [530977504] [2021-01-20 15:07:48,303 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:07:48,303 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-01-20 15:07:48,303 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52898840] [2021-01-20 15:07:48,304 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2021-01-20 15:07:48,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:07:48,305 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-01-20 15:07:48,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-01-20 15:07:48,306 INFO L87 Difference]: Start difference. First operand 6157 states. Second operand has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:48,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:07:48,732 INFO L93 Difference]: Finished difference Result 7345 states and 19729 transitions. [2021-01-20 15:07:48,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2021-01-20 15:07:48,733 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 56 [2021-01-20 15:07:48,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:07:48,771 INFO L225 Difference]: With dead ends: 7345 [2021-01-20 15:07:48,771 INFO L226 Difference]: Without dead ends: 5996 [2021-01-20 15:07:48,772 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=53, Invalid=103, Unknown=0, NotChecked=0, Total=156 [2021-01-20 15:07:48,772 INFO L78 Accepts]: Start accepts. Automaton has 5996 states. Word has length 56 [2021-01-20 15:07:48,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:07:48,773 INFO L481 AbstractCegarLoop]: Abstraction has 5996 states. [2021-01-20 15:07:48,773 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 9.333333333333334) internal successors, (56), 6 states have internal predecessors, (56), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:48,773 INFO L276 IsEmpty]: Start isEmpty. Operand 5996 states. [2021-01-20 15:07:48,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2021-01-20 15:07:48,784 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:07:48,784 INFO L504 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-01-20 15:07:48,784 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-01-20 15:07:48,784 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:07:48,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:07:48,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1496340841, now seen corresponding path program 1 times [2021-01-20 15:07:48,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:07:48,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2096122221] [2021-01-20 15:07:48,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:07:48,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:07:48,894 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:07:48,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2096122221] [2021-01-20 15:07:48,895 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:07:48,895 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-01-20 15:07:48,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [477319330] [2021-01-20 15:07:48,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-01-20 15:07:48,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:07:48,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-01-20 15:07:48,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-01-20 15:07:48,897 INFO L87 Difference]: Start difference. First operand 5996 states. Second operand has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:48,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:07:48,974 INFO L93 Difference]: Finished difference Result 1776 states and 4646 transitions. [2021-01-20 15:07:48,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-01-20 15:07:48,975 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 62 [2021-01-20 15:07:48,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:07:48,988 INFO L225 Difference]: With dead ends: 1776 [2021-01-20 15:07:48,988 INFO L226 Difference]: Without dead ends: 1776 [2021-01-20 15:07:48,989 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-01-20 15:07:48,989 INFO L78 Accepts]: Start accepts. Automaton has 1776 states. Word has length 62 [2021-01-20 15:07:48,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:07:48,990 INFO L481 AbstractCegarLoop]: Abstraction has 1776 states. [2021-01-20 15:07:48,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 12.4) internal successors, (62), 5 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:48,991 INFO L276 IsEmpty]: Start isEmpty. Operand 1776 states. [2021-01-20 15:07:49,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:07:49,002 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:07:49,002 INFO L504 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] [2021-01-20 15:07:49,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-01-20 15:07:49,002 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:07:49,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:07:49,004 INFO L82 PathProgramCache]: Analyzing trace with hash -1591513289, now seen corresponding path program 1 times [2021-01-20 15:07:49,004 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:07:49,005 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896020554] [2021-01-20 15:07:49,005 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:07:49,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:07:50,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:07:50,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896020554] [2021-01-20 15:07:50,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:07:50,027 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:07:50,027 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1164994424] [2021-01-20 15:07:50,028 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:07:50,028 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:07:50,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:07:50,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=264, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:07:50,031 INFO L87 Difference]: Start difference. First operand 1776 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:50,855 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 15:07:51,040 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 15:07:51,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:07:51,770 INFO L93 Difference]: Finished difference Result 2518 states and 6181 transitions. [2021-01-20 15:07:51,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:07:51,773 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:07:51,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:07:51,800 INFO L225 Difference]: With dead ends: 2518 [2021-01-20 15:07:51,801 INFO L226 Difference]: Without dead ends: 2518 [2021-01-20 15:07:51,802 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 121 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=276, Invalid=846, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:07:51,802 INFO L78 Accepts]: Start accepts. Automaton has 2518 states. Word has length 90 [2021-01-20 15:07:51,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:07:51,808 INFO L481 AbstractCegarLoop]: Abstraction has 2518 states. [2021-01-20 15:07:51,808 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:51,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2518 states. [2021-01-20 15:07:51,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:07:51,816 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:07:51,817 INFO L504 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] [2021-01-20 15:07:51,817 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-01-20 15:07:51,817 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:07:51,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:07:51,818 INFO L82 PathProgramCache]: Analyzing trace with hash -528545843, now seen corresponding path program 2 times [2021-01-20 15:07:51,818 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:07:51,818 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027762264] [2021-01-20 15:07:51,818 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:07:51,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:07:52,485 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:07:52,486 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027762264] [2021-01-20 15:07:52,486 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:07:52,486 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:07:52,486 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790508256] [2021-01-20 15:07:52,487 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:07:52,487 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:07:52,488 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:07:52,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:07:52,488 INFO L87 Difference]: Start difference. First operand 2518 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:53,782 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 15:07:54,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:07:54,534 INFO L93 Difference]: Finished difference Result 3032 states and 7263 transitions. [2021-01-20 15:07:54,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 15:07:54,535 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:07:54,535 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:07:54,543 INFO L225 Difference]: With dead ends: 3032 [2021-01-20 15:07:54,543 INFO L226 Difference]: Without dead ends: 3032 [2021-01-20 15:07:54,544 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=294, Invalid=698, Unknown=0, NotChecked=0, Total=992 [2021-01-20 15:07:54,544 INFO L78 Accepts]: Start accepts. Automaton has 3032 states. Word has length 90 [2021-01-20 15:07:54,545 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:07:54,545 INFO L481 AbstractCegarLoop]: Abstraction has 3032 states. [2021-01-20 15:07:54,545 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:54,545 INFO L276 IsEmpty]: Start isEmpty. Operand 3032 states. [2021-01-20 15:07:54,556 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:07:54,556 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:07:54,556 INFO L504 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] [2021-01-20 15:07:54,557 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-01-20 15:07:54,557 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:07:54,557 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:07:54,557 INFO L82 PathProgramCache]: Analyzing trace with hash 1468599035, now seen corresponding path program 3 times [2021-01-20 15:07:54,558 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:07:54,558 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467850431] [2021-01-20 15:07:54,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:07:54,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:07:55,248 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:07:55,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467850431] [2021-01-20 15:07:55,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:07:55,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:07:55,250 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [867884517] [2021-01-20 15:07:55,250 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:07:55,250 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:07:55,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:07:55,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:07:55,252 INFO L87 Difference]: Start difference. First operand 3032 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:57,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:07:57,363 INFO L93 Difference]: Finished difference Result 3384 states and 7927 transitions. [2021-01-20 15:07:57,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:07:57,364 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:07:57,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:07:57,399 INFO L225 Difference]: With dead ends: 3384 [2021-01-20 15:07:57,399 INFO L226 Difference]: Without dead ends: 3384 [2021-01-20 15:07:57,400 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:07:57,400 INFO L78 Accepts]: Start accepts. Automaton has 3384 states. Word has length 90 [2021-01-20 15:07:57,401 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:07:57,401 INFO L481 AbstractCegarLoop]: Abstraction has 3384 states. [2021-01-20 15:07:57,401 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:57,401 INFO L276 IsEmpty]: Start isEmpty. Operand 3384 states. [2021-01-20 15:07:57,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:07:57,416 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:07:57,416 INFO L504 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] [2021-01-20 15:07:57,416 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-01-20 15:07:57,417 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:07:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:07:57,417 INFO L82 PathProgramCache]: Analyzing trace with hash -1110752397, now seen corresponding path program 4 times [2021-01-20 15:07:57,417 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:07:57,418 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553972155] [2021-01-20 15:07:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:07:57,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:07:58,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:07:58,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553972155] [2021-01-20 15:07:58,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:07:58,025 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:07:58,025 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [442291085] [2021-01-20 15:07:58,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:07:58,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:07:58,026 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:07:58,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:07:58,026 INFO L87 Difference]: Start difference. First operand 3384 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:07:58,969 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 15:07:59,155 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 15:08:00,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:00,122 INFO L93 Difference]: Finished difference Result 3763 states and 8654 transitions. [2021-01-20 15:08:00,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:08:00,122 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:00,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:00,129 INFO L225 Difference]: With dead ends: 3763 [2021-01-20 15:08:00,129 INFO L226 Difference]: Without dead ends: 3763 [2021-01-20 15:08:00,130 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:08:00,130 INFO L78 Accepts]: Start accepts. Automaton has 3763 states. Word has length 90 [2021-01-20 15:08:00,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:00,131 INFO L481 AbstractCegarLoop]: Abstraction has 3763 states. [2021-01-20 15:08:00,131 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:00,131 INFO L276 IsEmpty]: Start isEmpty. Operand 3763 states. [2021-01-20 15:08:00,140 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:00,140 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:00,140 INFO L504 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] [2021-01-20 15:08:00,141 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-01-20 15:08:00,141 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:00,141 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:00,142 INFO L82 PathProgramCache]: Analyzing trace with hash -682618727, now seen corresponding path program 5 times [2021-01-20 15:08:00,142 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:00,142 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55605929] [2021-01-20 15:08:00,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:00,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:00,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:00,703 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55605929] [2021-01-20 15:08:00,704 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:00,704 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:00,704 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125898983] [2021-01-20 15:08:00,704 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:00,705 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:00,705 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:00,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:00,706 INFO L87 Difference]: Start difference. First operand 3763 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:01,691 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 15:08:01,914 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 15:08:02,839 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:02,839 INFO L93 Difference]: Finished difference Result 3834 states and 8741 transitions. [2021-01-20 15:08:02,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:08:02,840 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:02,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:02,847 INFO L225 Difference]: With dead ends: 3834 [2021-01-20 15:08:02,847 INFO L226 Difference]: Without dead ends: 3834 [2021-01-20 15:08:02,848 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 118 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=291, Invalid=831, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:08:02,849 INFO L78 Accepts]: Start accepts. Automaton has 3834 states. Word has length 90 [2021-01-20 15:08:02,849 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:02,849 INFO L481 AbstractCegarLoop]: Abstraction has 3834 states. [2021-01-20 15:08:02,849 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:02,849 INFO L276 IsEmpty]: Start isEmpty. Operand 3834 states. [2021-01-20 15:08:02,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:02,859 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:02,859 INFO L504 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] [2021-01-20 15:08:02,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-01-20 15:08:02,859 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:02,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:02,860 INFO L82 PathProgramCache]: Analyzing trace with hash -963804661, now seen corresponding path program 6 times [2021-01-20 15:08:02,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:02,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215117905] [2021-01-20 15:08:02,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:02,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:03,431 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:03,434 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215117905] [2021-01-20 15:08:03,434 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:03,434 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:08:03,435 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [967103325] [2021-01-20 15:08:03,436 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:08:03,436 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:03,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:08:03,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=265, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:08:03,437 INFO L87 Difference]: Start difference. First operand 3834 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:04,269 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 15:08:04,476 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 15:08:05,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:05,201 INFO L93 Difference]: Finished difference Result 3886 states and 8810 transitions. [2021-01-20 15:08:05,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-01-20 15:08:05,203 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:05,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:05,212 INFO L225 Difference]: With dead ends: 3886 [2021-01-20 15:08:05,212 INFO L226 Difference]: Without dead ends: 3886 [2021-01-20 15:08:05,213 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=261, Invalid=861, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:08:05,213 INFO L78 Accepts]: Start accepts. Automaton has 3886 states. Word has length 90 [2021-01-20 15:08:05,213 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:05,213 INFO L481 AbstractCegarLoop]: Abstraction has 3886 states. [2021-01-20 15:08:05,214 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:05,214 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states. [2021-01-20 15:08:05,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:05,222 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:05,222 INFO L504 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] [2021-01-20 15:08:05,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-01-20 15:08:05,222 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:05,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:05,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1193349277, now seen corresponding path program 7 times [2021-01-20 15:08:05,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:05,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1657016164] [2021-01-20 15:08:05,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:06,204 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:06,204 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1657016164] [2021-01-20 15:08:06,204 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:06,205 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:06,205 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965044415] [2021-01-20 15:08:06,205 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:06,205 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:06,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:06,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:06,207 INFO L87 Difference]: Start difference. First operand 3886 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:07,125 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:07,424 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:07,666 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:08:08,317 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:08:08,597 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:08:08,957 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:08:09,344 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:08:09,723 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:10,203 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 15:08:10,443 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:08:10,697 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 15:08:10,962 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 15:08:11,194 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:08:11,452 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 15:08:11,758 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 15:08:11,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:11,770 INFO L93 Difference]: Finished difference Result 6428 states and 14283 transitions. [2021-01-20 15:08:11,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:08:11,771 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:11,772 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:11,780 INFO L225 Difference]: With dead ends: 6428 [2021-01-20 15:08:11,780 INFO L226 Difference]: Without dead ends: 6428 [2021-01-20 15:08:11,782 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=507, Invalid=1473, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:08:11,782 INFO L78 Accepts]: Start accepts. Automaton has 6428 states. Word has length 90 [2021-01-20 15:08:11,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:11,782 INFO L481 AbstractCegarLoop]: Abstraction has 6428 states. [2021-01-20 15:08:11,782 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:11,783 INFO L276 IsEmpty]: Start isEmpty. Operand 6428 states. [2021-01-20 15:08:11,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:11,797 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:11,798 INFO L504 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] [2021-01-20 15:08:11,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-01-20 15:08:11,798 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:11,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:11,799 INFO L82 PathProgramCache]: Analyzing trace with hash -388303861, now seen corresponding path program 8 times [2021-01-20 15:08:11,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:11,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533857827] [2021-01-20 15:08:11,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:11,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:12,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:12,789 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533857827] [2021-01-20 15:08:12,789 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:12,789 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:12,789 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [57977268] [2021-01-20 15:08:12,790 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:12,790 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:12,790 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:12,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=478, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:12,791 INFO L87 Difference]: Start difference. First operand 6428 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:13,649 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:13,939 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:14,184 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:08:14,479 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:08:14,922 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:08:15,276 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:08:15,665 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:08:16,426 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:08:16,974 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:08:17,341 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:08:17,760 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:08:18,132 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:08:18,495 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:18,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:18,508 INFO L93 Difference]: Finished difference Result 6518 states and 14433 transitions. [2021-01-20 15:08:18,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-20 15:08:18,509 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:18,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:18,516 INFO L225 Difference]: With dead ends: 6518 [2021-01-20 15:08:18,516 INFO L226 Difference]: Without dead ends: 6518 [2021-01-20 15:08:18,517 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 161 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=512, Invalid=1294, Unknown=0, NotChecked=0, Total=1806 [2021-01-20 15:08:18,517 INFO L78 Accepts]: Start accepts. Automaton has 6518 states. Word has length 90 [2021-01-20 15:08:18,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:18,517 INFO L481 AbstractCegarLoop]: Abstraction has 6518 states. [2021-01-20 15:08:18,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:18,518 INFO L276 IsEmpty]: Start isEmpty. Operand 6518 states. [2021-01-20 15:08:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:18,530 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:18,531 INFO L504 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] [2021-01-20 15:08:18,531 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-01-20 15:08:18,531 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:18,532 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:18,532 INFO L82 PathProgramCache]: Analyzing trace with hash 23768665, now seen corresponding path program 9 times [2021-01-20 15:08:18,532 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:18,532 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1726514249] [2021-01-20 15:08:18,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:18,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:19,532 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:19,533 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1726514249] [2021-01-20 15:08:19,533 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:19,533 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:19,533 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268244493] [2021-01-20 15:08:19,534 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:19,534 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:19,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:19,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=482, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:19,535 INFO L87 Difference]: Start difference. First operand 6518 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:20,404 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:20,746 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:20,977 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:08:21,274 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:08:21,692 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:08:22,068 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:08:22,467 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:08:23,187 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:08:23,542 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:24,258 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:08:24,668 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:08:25,070 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:08:25,471 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:08:25,872 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:25,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:25,887 INFO L93 Difference]: Finished difference Result 6514 states and 14429 transitions. [2021-01-20 15:08:25,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-20 15:08:25,888 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:25,888 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:25,894 INFO L225 Difference]: With dead ends: 6514 [2021-01-20 15:08:25,894 INFO L226 Difference]: Without dead ends: 6514 [2021-01-20 15:08:25,895 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 185 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=520, Invalid=1372, Unknown=0, NotChecked=0, Total=1892 [2021-01-20 15:08:25,895 INFO L78 Accepts]: Start accepts. Automaton has 6514 states. Word has length 90 [2021-01-20 15:08:25,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:25,896 INFO L481 AbstractCegarLoop]: Abstraction has 6514 states. [2021-01-20 15:08:25,896 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:25,896 INFO L276 IsEmpty]: Start isEmpty. Operand 6514 states. [2021-01-20 15:08:25,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:25,908 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:25,908 INFO L504 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] [2021-01-20 15:08:25,908 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-01-20 15:08:25,909 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:25,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:25,909 INFO L82 PathProgramCache]: Analyzing trace with hash -174849311, now seen corresponding path program 10 times [2021-01-20 15:08:25,909 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:25,909 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [302740547] [2021-01-20 15:08:25,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:25,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:26,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:26,954 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [302740547] [2021-01-20 15:08:26,955 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:26,955 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:26,958 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505484166] [2021-01-20 15:08:26,958 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:26,959 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:26,959 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:26,960 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:26,960 INFO L87 Difference]: Start difference. First operand 6514 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:27,366 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 31 [2021-01-20 15:08:27,661 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:08:27,842 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:28,120 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:28,362 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:08:28,666 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:08:29,058 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:08:29,679 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:08:30,024 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:08:30,397 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:30,918 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 15:08:31,306 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 15:08:31,638 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 15:08:31,986 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 15:08:32,283 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:08:32,630 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 15:08:32,968 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 15:08:32,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:32,988 INFO L93 Difference]: Finished difference Result 6510 states and 14425 transitions. [2021-01-20 15:08:32,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:08:32,989 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:32,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:32,995 INFO L225 Difference]: With dead ends: 6510 [2021-01-20 15:08:32,995 INFO L226 Difference]: Without dead ends: 6510 [2021-01-20 15:08:32,996 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 199 ImplicationChecksByTransitivity, 5.6s TimeCoverageRelationStatistics Valid=537, Invalid=1443, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:08:32,996 INFO L78 Accepts]: Start accepts. Automaton has 6510 states. Word has length 90 [2021-01-20 15:08:32,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:32,996 INFO L481 AbstractCegarLoop]: Abstraction has 6510 states. [2021-01-20 15:08:32,997 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:32,997 INFO L276 IsEmpty]: Start isEmpty. Operand 6510 states. [2021-01-20 15:08:33,008 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:33,008 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:33,008 INFO L504 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] [2021-01-20 15:08:33,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-01-20 15:08:33,009 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:33,009 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:33,009 INFO L82 PathProgramCache]: Analyzing trace with hash -1697555461, now seen corresponding path program 11 times [2021-01-20 15:08:33,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:33,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548487335] [2021-01-20 15:08:33,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:33,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:33,950 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:33,951 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548487335] [2021-01-20 15:08:33,951 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:33,951 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:33,951 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [748376790] [2021-01-20 15:08:33,952 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:33,952 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:33,952 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:33,953 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:33,953 INFO L87 Difference]: Start difference. First operand 6510 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:34,903 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:35,196 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:35,448 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:08:35,749 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:08:36,418 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:08:36,744 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:08:37,101 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:08:37,476 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:37,987 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 15:08:38,291 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 15:08:38,665 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 15:08:39,008 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 15:08:39,293 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:08:39,622 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 15:08:39,946 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 15:08:39,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:39,967 INFO L93 Difference]: Finished difference Result 6506 states and 14421 transitions. [2021-01-20 15:08:39,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:08:39,968 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:39,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:39,973 INFO L225 Difference]: With dead ends: 6506 [2021-01-20 15:08:39,973 INFO L226 Difference]: Without dead ends: 6506 [2021-01-20 15:08:39,974 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=522, Invalid=1458, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:08:39,974 INFO L78 Accepts]: Start accepts. Automaton has 6506 states. Word has length 90 [2021-01-20 15:08:39,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:39,974 INFO L481 AbstractCegarLoop]: Abstraction has 6506 states. [2021-01-20 15:08:39,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:39,975 INFO L276 IsEmpty]: Start isEmpty. Operand 6506 states. [2021-01-20 15:08:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:39,983 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:39,983 INFO L504 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] [2021-01-20 15:08:39,983 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-01-20 15:08:39,983 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:39,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:39,984 INFO L82 PathProgramCache]: Analyzing trace with hash 973479241, now seen corresponding path program 12 times [2021-01-20 15:08:39,984 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:39,984 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527894828] [2021-01-20 15:08:39,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:40,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:40,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:40,949 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527894828] [2021-01-20 15:08:40,949 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:40,949 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:40,949 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899989191] [2021-01-20 15:08:40,949 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:40,950 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:40,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:40,950 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:40,951 INFO L87 Difference]: Start difference. First operand 6506 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:41,662 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:08:41,846 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:42,137 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:42,700 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:08:43,004 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:08:43,298 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:08:43,669 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:08:44,028 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:08:44,409 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:44,861 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 15:08:45,085 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:08:45,314 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 15:08:45,555 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 15:08:45,747 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:08:45,981 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 15:08:46,213 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 15:08:46,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:46,229 INFO L93 Difference]: Finished difference Result 6538 states and 14451 transitions. [2021-01-20 15:08:46,230 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:08:46,230 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:46,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:46,236 INFO L225 Difference]: With dead ends: 6538 [2021-01-20 15:08:46,236 INFO L226 Difference]: Without dead ends: 6538 [2021-01-20 15:08:46,237 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=492, Invalid=1488, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:08:46,237 INFO L78 Accepts]: Start accepts. Automaton has 6538 states. Word has length 90 [2021-01-20 15:08:46,237 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:46,237 INFO L481 AbstractCegarLoop]: Abstraction has 6538 states. [2021-01-20 15:08:46,237 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:46,237 INFO L276 IsEmpty]: Start isEmpty. Operand 6538 states. [2021-01-20 15:08:46,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:46,247 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:46,247 INFO L504 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] [2021-01-20 15:08:46,247 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-01-20 15:08:46,248 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:46,248 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:46,248 INFO L82 PathProgramCache]: Analyzing trace with hash 1930787701, now seen corresponding path program 13 times [2021-01-20 15:08:46,248 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:46,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [965471908] [2021-01-20 15:08:46,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:46,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:47,281 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:47,281 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [965471908] [2021-01-20 15:08:47,281 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:47,282 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:47,282 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793797003] [2021-01-20 15:08:47,282 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:47,282 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:47,283 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:47,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:47,283 INFO L87 Difference]: Start difference. First operand 6538 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:48,006 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:08:48,273 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:48,487 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:48,755 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:08:49,405 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:08:49,684 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:08:50,040 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:08:50,398 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:08:50,775 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:51,292 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 15:08:51,546 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:08:51,812 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 15:08:52,153 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 15:08:52,389 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:08:52,644 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 15:08:52,909 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 15:08:52,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:52,926 INFO L93 Difference]: Finished difference Result 11630 states and 25665 transitions. [2021-01-20 15:08:52,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:08:52,927 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:52,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:52,936 INFO L225 Difference]: With dead ends: 11630 [2021-01-20 15:08:52,936 INFO L226 Difference]: Without dead ends: 11630 [2021-01-20 15:08:52,937 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:08:52,937 INFO L78 Accepts]: Start accepts. Automaton has 11630 states. Word has length 90 [2021-01-20 15:08:52,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:52,937 INFO L481 AbstractCegarLoop]: Abstraction has 11630 states. [2021-01-20 15:08:52,937 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:52,937 INFO L276 IsEmpty]: Start isEmpty. Operand 11630 states. [2021-01-20 15:08:52,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:52,946 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:52,946 INFO L504 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] [2021-01-20 15:08:52,946 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-01-20 15:08:52,947 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:52,947 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:52,947 INFO L82 PathProgramCache]: Analyzing trace with hash 349134563, now seen corresponding path program 14 times [2021-01-20 15:08:52,947 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:52,947 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358530027] [2021-01-20 15:08:52,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:52,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:08:53,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:08:53,900 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1358530027] [2021-01-20 15:08:53,900 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:08:53,900 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:08:53,900 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931825037] [2021-01-20 15:08:53,901 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:08:53,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:08:53,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:08:53,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:08:53,902 INFO L87 Difference]: Start difference. First operand 11630 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:54,594 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:08:54,862 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:08:55,077 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:08:55,343 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:08:55,652 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:08:56,074 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:08:56,553 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:08:56,985 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:08:57,757 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:08:58,344 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:08:58,716 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:08:59,105 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:08:59,491 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:08:59,859 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:08:59,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:08:59,875 INFO L93 Difference]: Finished difference Result 11720 states and 25815 transitions. [2021-01-20 15:08:59,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-20 15:08:59,876 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:08:59,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:08:59,886 INFO L225 Difference]: With dead ends: 11720 [2021-01-20 15:08:59,887 INFO L226 Difference]: Without dead ends: 11720 [2021-01-20 15:08:59,888 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 5.3s TimeCoverageRelationStatistics Valid=511, Invalid=1295, Unknown=0, NotChecked=0, Total=1806 [2021-01-20 15:08:59,888 INFO L78 Accepts]: Start accepts. Automaton has 11720 states. Word has length 90 [2021-01-20 15:08:59,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:08:59,888 INFO L481 AbstractCegarLoop]: Abstraction has 11720 states. [2021-01-20 15:08:59,888 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:08:59,888 INFO L276 IsEmpty]: Start isEmpty. Operand 11720 states. [2021-01-20 15:08:59,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:08:59,903 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:08:59,903 INFO L504 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] [2021-01-20 15:08:59,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-01-20 15:08:59,904 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:08:59,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:08:59,904 INFO L82 PathProgramCache]: Analyzing trace with hash 761207089, now seen corresponding path program 15 times [2021-01-20 15:08:59,904 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:08:59,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075416578] [2021-01-20 15:08:59,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:08:59,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:00,909 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:00,909 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075416578] [2021-01-20 15:09:00,910 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:00,910 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:00,910 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1033109952] [2021-01-20 15:09:00,910 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:00,911 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:00,911 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:00,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:00,911 INFO L87 Difference]: Start difference. First operand 11720 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:01,694 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:01,960 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:02,172 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:02,445 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:09:02,755 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:09:03,182 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:09:03,574 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:09:03,982 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:09:04,715 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:09:05,086 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:05,714 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:09:06,094 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:09:06,489 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:09:06,870 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:09:07,336 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:07,352 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:07,352 INFO L93 Difference]: Finished difference Result 11716 states and 25811 transitions. [2021-01-20 15:09:07,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-20 15:09:07,353 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:07,353 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:07,362 INFO L225 Difference]: With dead ends: 11716 [2021-01-20 15:09:07,362 INFO L226 Difference]: Without dead ends: 11716 [2021-01-20 15:09:07,363 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=519, Invalid=1373, Unknown=0, NotChecked=0, Total=1892 [2021-01-20 15:09:07,363 INFO L78 Accepts]: Start accepts. Automaton has 11716 states. Word has length 90 [2021-01-20 15:09:07,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:07,363 INFO L481 AbstractCegarLoop]: Abstraction has 11716 states. [2021-01-20 15:09:07,363 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:07,363 INFO L276 IsEmpty]: Start isEmpty. Operand 11716 states. [2021-01-20 15:09:07,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:07,373 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:07,373 INFO L504 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] [2021-01-20 15:09:07,373 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-01-20 15:09:07,374 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:07,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:07,374 INFO L82 PathProgramCache]: Analyzing trace with hash 562589113, now seen corresponding path program 16 times [2021-01-20 15:09:07,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:07,374 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [984107832] [2021-01-20 15:09:07,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:07,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:08,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:08,319 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [984107832] [2021-01-20 15:09:08,319 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:08,319 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:08,320 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1438862396] [2021-01-20 15:09:08,320 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:08,320 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:08,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:08,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:08,321 INFO L87 Difference]: Start difference. First operand 11716 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:09,028 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:09,297 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:09,514 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:09,785 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:09:10,095 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:09:10,513 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:09:11,194 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:09:11,550 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:09:11,936 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:12,615 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 15:09:12,957 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 15:09:13,301 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 15:09:13,662 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 15:09:13,968 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:09:14,322 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 15:09:14,677 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 15:09:14,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:14,700 INFO L93 Difference]: Finished difference Result 11712 states and 25807 transitions. [2021-01-20 15:09:14,700 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:09:14,701 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:14,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:14,709 INFO L225 Difference]: With dead ends: 11712 [2021-01-20 15:09:14,709 INFO L226 Difference]: Without dead ends: 11712 [2021-01-20 15:09:14,710 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:09:14,710 INFO L78 Accepts]: Start accepts. Automaton has 11712 states. Word has length 90 [2021-01-20 15:09:14,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:14,711 INFO L481 AbstractCegarLoop]: Abstraction has 11712 states. [2021-01-20 15:09:14,711 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:14,711 INFO L276 IsEmpty]: Start isEmpty. Operand 11712 states. [2021-01-20 15:09:14,725 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:14,725 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:14,725 INFO L504 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] [2021-01-20 15:09:14,725 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-01-20 15:09:14,725 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:14,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:14,726 INFO L82 PathProgramCache]: Analyzing trace with hash -960117037, now seen corresponding path program 17 times [2021-01-20 15:09:14,726 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:14,726 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [741599721] [2021-01-20 15:09:14,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:14,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:15,706 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:15,707 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [741599721] [2021-01-20 15:09:15,707 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:15,707 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:15,707 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1180492083] [2021-01-20 15:09:15,707 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:15,707 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:15,708 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:15,708 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:15,708 INFO L87 Difference]: Start difference. First operand 11712 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:16,464 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:16,750 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:16,972 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:17,263 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:09:17,587 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:09:18,540 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:09:18,926 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:09:19,331 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:09:19,771 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:20,390 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 15:09:20,705 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 15:09:21,016 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 15:09:21,339 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 15:09:21,606 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:09:21,913 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 15:09:22,235 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 15:09:22,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:22,256 INFO L93 Difference]: Finished difference Result 11708 states and 25803 transitions. [2021-01-20 15:09:22,257 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:09:22,257 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:22,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:22,268 INFO L225 Difference]: With dead ends: 11708 [2021-01-20 15:09:22,268 INFO L226 Difference]: Without dead ends: 11708 [2021-01-20 15:09:22,269 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=521, Invalid=1459, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:09:22,269 INFO L78 Accepts]: Start accepts. Automaton has 11708 states. Word has length 90 [2021-01-20 15:09:22,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:22,269 INFO L481 AbstractCegarLoop]: Abstraction has 11708 states. [2021-01-20 15:09:22,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:22,269 INFO L276 IsEmpty]: Start isEmpty. Operand 11708 states. [2021-01-20 15:09:22,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:22,282 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:22,282 INFO L504 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] [2021-01-20 15:09:22,282 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-01-20 15:09:22,282 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:22,283 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:22,283 INFO L82 PathProgramCache]: Analyzing trace with hash 1710917665, now seen corresponding path program 18 times [2021-01-20 15:09:22,283 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:22,283 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1820747076] [2021-01-20 15:09:22,283 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:22,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:23,293 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:23,294 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1820747076] [2021-01-20 15:09:23,294 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:23,294 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:23,294 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936647362] [2021-01-20 15:09:23,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:23,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:23,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:23,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:23,295 INFO L87 Difference]: Start difference. First operand 11708 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:24,033 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:24,308 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:24,610 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:25,232 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:09:25,482 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:09:25,783 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:09:26,178 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:09:26,546 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:09:26,936 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:27,440 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 15:09:27,682 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:09:27,913 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 15:09:28,159 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 15:09:28,356 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:09:28,590 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 15:09:28,840 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 15:09:28,868 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:28,868 INFO L93 Difference]: Finished difference Result 13321 states and 28777 transitions. [2021-01-20 15:09:28,869 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:09:28,869 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:28,869 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:28,884 INFO L225 Difference]: With dead ends: 13321 [2021-01-20 15:09:28,884 INFO L226 Difference]: Without dead ends: 13321 [2021-01-20 15:09:28,885 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=491, Invalid=1489, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:09:28,885 INFO L78 Accepts]: Start accepts. Automaton has 13321 states. Word has length 90 [2021-01-20 15:09:28,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:28,886 INFO L481 AbstractCegarLoop]: Abstraction has 13321 states. [2021-01-20 15:09:28,886 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:28,886 INFO L276 IsEmpty]: Start isEmpty. Operand 13321 states. [2021-01-20 15:09:28,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:28,903 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:28,903 INFO L504 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] [2021-01-20 15:09:28,904 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-01-20 15:09:28,904 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:28,904 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:28,904 INFO L82 PathProgramCache]: Analyzing trace with hash 1296575555, now seen corresponding path program 19 times [2021-01-20 15:09:28,905 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:28,905 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [766667983] [2021-01-20 15:09:28,905 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:28,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:29,880 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:29,880 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [766667983] [2021-01-20 15:09:29,880 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:29,880 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:29,881 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1873539900] [2021-01-20 15:09:29,881 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:29,881 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:29,882 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:29,882 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:29,882 INFO L87 Difference]: Start difference. First operand 13321 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:30,655 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:30,926 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:31,259 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:31,512 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:09:32,142 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:09:32,423 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:09:32,778 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:09:33,143 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:09:33,529 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:34,054 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 15:09:34,329 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:09:34,599 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 15:09:34,883 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 15:09:35,129 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:09:35,391 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 15:09:35,675 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 15:09:35,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:35,690 INFO L93 Difference]: Finished difference Result 13317 states and 28773 transitions. [2021-01-20 15:09:35,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:09:35,691 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:35,691 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:35,703 INFO L225 Difference]: With dead ends: 13317 [2021-01-20 15:09:35,703 INFO L226 Difference]: Without dead ends: 13317 [2021-01-20 15:09:35,703 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 5.2s TimeCoverageRelationStatistics Valid=506, Invalid=1474, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:09:35,704 INFO L78 Accepts]: Start accepts. Automaton has 13317 states. Word has length 90 [2021-01-20 15:09:35,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:35,704 INFO L481 AbstractCegarLoop]: Abstraction has 13317 states. [2021-01-20 15:09:35,704 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:35,704 INFO L276 IsEmpty]: Start isEmpty. Operand 13317 states. [2021-01-20 15:09:35,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:35,717 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:35,717 INFO L504 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] [2021-01-20 15:09:35,717 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-01-20 15:09:35,717 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:35,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:35,718 INFO L82 PathProgramCache]: Analyzing trace with hash -285077583, now seen corresponding path program 20 times [2021-01-20 15:09:35,718 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:35,718 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1405939346] [2021-01-20 15:09:35,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:35,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:36,715 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:36,715 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1405939346] [2021-01-20 15:09:36,715 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:36,715 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:36,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [601204992] [2021-01-20 15:09:36,716 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:36,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:36,716 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:36,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:36,717 INFO L87 Difference]: Start difference. First operand 13317 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:37,452 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:37,845 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:38,088 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:38,350 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:09:38,675 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:09:39,115 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:09:39,513 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:09:39,932 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:09:40,724 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:09:41,345 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:09:41,724 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:09:42,121 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:09:42,507 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:09:42,888 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:42,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:42,904 INFO L93 Difference]: Finished difference Result 15626 states and 33776 transitions. [2021-01-20 15:09:42,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-20 15:09:42,905 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:42,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:42,919 INFO L225 Difference]: With dead ends: 15626 [2021-01-20 15:09:42,919 INFO L226 Difference]: Without dead ends: 15626 [2021-01-20 15:09:42,920 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=511, Invalid=1295, Unknown=0, NotChecked=0, Total=1806 [2021-01-20 15:09:42,920 INFO L78 Accepts]: Start accepts. Automaton has 15626 states. Word has length 90 [2021-01-20 15:09:42,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:42,920 INFO L481 AbstractCegarLoop]: Abstraction has 15626 states. [2021-01-20 15:09:42,921 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:42,921 INFO L276 IsEmpty]: Start isEmpty. Operand 15626 states. [2021-01-20 15:09:42,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:42,935 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:42,935 INFO L504 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] [2021-01-20 15:09:42,935 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-01-20 15:09:42,935 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:42,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:42,936 INFO L82 PathProgramCache]: Analyzing trace with hash 126994943, now seen corresponding path program 21 times [2021-01-20 15:09:42,936 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:42,936 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [839732008] [2021-01-20 15:09:42,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:42,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:44,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:44,125 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [839732008] [2021-01-20 15:09:44,125 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:44,125 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:44,125 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475292078] [2021-01-20 15:09:44,126 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:44,126 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:44,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:44,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:44,127 INFO L87 Difference]: Start difference. First operand 15626 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:44,952 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:45,271 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:45,541 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:45,835 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:09:46,203 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:09:46,717 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:09:47,141 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:09:47,574 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:09:48,401 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:09:48,775 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:49,487 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:09:49,878 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:09:50,284 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:09:50,677 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:09:51,073 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:51,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:51,089 INFO L93 Difference]: Finished difference Result 15658 states and 33806 transitions. [2021-01-20 15:09:51,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-20 15:09:51,091 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:51,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:51,104 INFO L225 Difference]: With dead ends: 15658 [2021-01-20 15:09:51,104 INFO L226 Difference]: Without dead ends: 15658 [2021-01-20 15:09:51,105 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 183 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=519, Invalid=1373, Unknown=0, NotChecked=0, Total=1892 [2021-01-20 15:09:51,105 INFO L78 Accepts]: Start accepts. Automaton has 15658 states. Word has length 90 [2021-01-20 15:09:51,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:51,106 INFO L481 AbstractCegarLoop]: Abstraction has 15658 states. [2021-01-20 15:09:51,106 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:51,106 INFO L276 IsEmpty]: Start isEmpty. Operand 15658 states. [2021-01-20 15:09:51,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:51,120 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:51,120 INFO L504 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] [2021-01-20 15:09:51,120 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-01-20 15:09:51,120 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:51,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:51,121 INFO L82 PathProgramCache]: Analyzing trace with hash -71623033, now seen corresponding path program 22 times [2021-01-20 15:09:51,121 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:51,121 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584525838] [2021-01-20 15:09:51,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:51,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:52,258 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:52,259 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584525838] [2021-01-20 15:09:52,259 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:52,259 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:52,259 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [460262680] [2021-01-20 15:09:52,259 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:52,259 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:52,260 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:52,260 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:52,260 INFO L87 Difference]: Start difference. First operand 15658 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:53,012 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:09:53,283 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:09:53,526 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:09:53,791 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:09:54,103 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:09:54,527 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:09:55,180 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:09:55,543 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:09:55,938 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:09:56,530 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 15:09:56,878 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 15:09:57,228 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 15:09:57,599 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 15:09:57,910 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:09:58,265 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 15:09:58,630 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 15:09:58,654 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:09:58,654 INFO L93 Difference]: Finished difference Result 15690 states and 33836 transitions. [2021-01-20 15:09:58,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:09:58,655 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:09:58,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:09:58,669 INFO L225 Difference]: With dead ends: 15690 [2021-01-20 15:09:58,669 INFO L226 Difference]: Without dead ends: 15690 [2021-01-20 15:09:58,670 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 5.9s TimeCoverageRelationStatistics Valid=536, Invalid=1444, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:09:58,670 INFO L78 Accepts]: Start accepts. Automaton has 15690 states. Word has length 90 [2021-01-20 15:09:58,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:09:58,670 INFO L481 AbstractCegarLoop]: Abstraction has 15690 states. [2021-01-20 15:09:58,670 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:09:58,671 INFO L276 IsEmpty]: Start isEmpty. Operand 15690 states. [2021-01-20 15:09:58,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:09:58,685 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:09:58,686 INFO L504 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] [2021-01-20 15:09:58,686 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-01-20 15:09:58,686 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:09:58,686 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:09:58,686 INFO L82 PathProgramCache]: Analyzing trace with hash -1594329183, now seen corresponding path program 23 times [2021-01-20 15:09:58,687 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:09:58,687 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711638479] [2021-01-20 15:09:58,687 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:09:58,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:09:59,232 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2021-01-20 15:09:59,825 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:09:59,825 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711638479] [2021-01-20 15:09:59,825 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:09:59,825 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:09:59,825 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144087962] [2021-01-20 15:09:59,826 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:09:59,826 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:09:59,826 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:09:59,827 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:09:59,827 INFO L87 Difference]: Start difference. First operand 15690 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:00,581 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:10:00,859 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:10:01,105 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:10:01,369 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:10:01,694 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:10:02,408 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:10:02,753 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:10:03,141 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:10:03,540 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:10:04,110 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 15:10:04,428 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 15:10:04,748 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 15:10:05,079 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 15:10:05,362 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:10:05,681 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 15:10:06,004 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 15:10:06,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:06,028 INFO L93 Difference]: Finished difference Result 15722 states and 33866 transitions. [2021-01-20 15:10:06,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:10:06,029 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:06,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:06,043 INFO L225 Difference]: With dead ends: 15722 [2021-01-20 15:10:06,044 INFO L226 Difference]: Without dead ends: 15722 [2021-01-20 15:10:06,044 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 203 ImplicationChecksByTransitivity, 5.7s TimeCoverageRelationStatistics Valid=521, Invalid=1459, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:10:06,044 INFO L78 Accepts]: Start accepts. Automaton has 15722 states. Word has length 90 [2021-01-20 15:10:06,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:06,045 INFO L481 AbstractCegarLoop]: Abstraction has 15722 states. [2021-01-20 15:10:06,045 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:06,045 INFO L276 IsEmpty]: Start isEmpty. Operand 15722 states. [2021-01-20 15:10:06,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:06,059 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:06,059 INFO L504 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] [2021-01-20 15:10:06,059 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-01-20 15:10:06,059 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:06,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:06,060 INFO L82 PathProgramCache]: Analyzing trace with hash 1625276165, now seen corresponding path program 24 times [2021-01-20 15:10:06,060 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:06,060 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1689926124] [2021-01-20 15:10:06,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:06,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:07,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:07,077 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1689926124] [2021-01-20 15:10:07,078 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:07,078 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:07,078 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [850726094] [2021-01-20 15:10:07,078 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:07,078 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:07,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:07,079 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:07,079 INFO L87 Difference]: Start difference. First operand 15722 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:07,954 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:10:08,231 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:10:08,478 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:10:09,048 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:10:09,301 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:10:09,615 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 15:10:10,008 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:10:10,407 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:10:10,816 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:10:11,332 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 15:10:11,583 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:10:11,832 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 15:10:12,094 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 15:10:12,309 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:10:12,565 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 15:10:12,824 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 15:10:12,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:12,842 INFO L93 Difference]: Finished difference Result 15898 states and 34032 transitions. [2021-01-20 15:10:12,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:10:12,843 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:12,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:12,857 INFO L225 Difference]: With dead ends: 15898 [2021-01-20 15:10:12,857 INFO L226 Difference]: Without dead ends: 15898 [2021-01-20 15:10:12,858 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=491, Invalid=1489, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:10:12,858 INFO L78 Accepts]: Start accepts. Automaton has 15898 states. Word has length 90 [2021-01-20 15:10:12,858 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:12,858 INFO L481 AbstractCegarLoop]: Abstraction has 15898 states. [2021-01-20 15:10:12,859 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:12,859 INFO L276 IsEmpty]: Start isEmpty. Operand 15898 states. [2021-01-20 15:10:12,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:12,873 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:12,873 INFO L504 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] [2021-01-20 15:10:12,873 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2021-01-20 15:10:12,873 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:12,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:12,873 INFO L82 PathProgramCache]: Analyzing trace with hash -2035864487, now seen corresponding path program 25 times [2021-01-20 15:10:12,874 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:12,874 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944968831] [2021-01-20 15:10:12,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:12,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:13,469 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:13,469 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944968831] [2021-01-20 15:10:13,469 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:13,469 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:13,469 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364522386] [2021-01-20 15:10:13,470 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:13,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:13,471 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:13,471 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:13,471 INFO L87 Difference]: Start difference. First operand 15898 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:14,547 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 52 [2021-01-20 15:10:14,770 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 57 [2021-01-20 15:10:15,474 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 53 [2021-01-20 15:10:15,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:15,949 INFO L93 Difference]: Finished difference Result 20222 states and 42083 transitions. [2021-01-20 15:10:15,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:10:15,950 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:15,950 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:15,967 INFO L225 Difference]: With dead ends: 20222 [2021-01-20 15:10:15,968 INFO L226 Difference]: Without dead ends: 20222 [2021-01-20 15:10:15,968 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:10:15,968 INFO L78 Accepts]: Start accepts. Automaton has 20222 states. Word has length 90 [2021-01-20 15:10:15,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:15,969 INFO L481 AbstractCegarLoop]: Abstraction has 20222 states. [2021-01-20 15:10:15,969 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:15,969 INFO L276 IsEmpty]: Start isEmpty. Operand 20222 states. [2021-01-20 15:10:15,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:15,985 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:15,985 INFO L504 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] [2021-01-20 15:10:15,985 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2021-01-20 15:10:15,986 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:15,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:15,986 INFO L82 PathProgramCache]: Analyzing trace with hash 350212663, now seen corresponding path program 26 times [2021-01-20 15:10:15,986 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:15,986 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [84981031] [2021-01-20 15:10:15,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:16,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:17,076 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:10:17,247 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:10:17,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:17,481 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [84981031] [2021-01-20 15:10:17,481 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:17,481 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:17,481 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1064217736] [2021-01-20 15:10:17,481 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:17,481 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:17,482 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:17,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:17,482 INFO L87 Difference]: Start difference. First operand 20222 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:18,125 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:10:18,326 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:10:18,621 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:10:18,880 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:10:19,536 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:19,815 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:10:20,154 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:10:20,511 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:10:20,909 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:10:21,299 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:10:21,737 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:10:22,361 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:10:22,621 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:10:22,890 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 15:10:23,161 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 15:10:23,404 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:23,838 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:10:24,128 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:10:24,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:24,140 INFO L93 Difference]: Finished difference Result 20560 states and 42689 transitions. [2021-01-20 15:10:24,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:10:24,141 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:24,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:24,156 INFO L225 Difference]: With dead ends: 20560 [2021-01-20 15:10:24,157 INFO L226 Difference]: Without dead ends: 20560 [2021-01-20 15:10:24,157 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=523, Invalid=1547, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:10:24,158 INFO L78 Accepts]: Start accepts. Automaton has 20560 states. Word has length 90 [2021-01-20 15:10:24,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:24,158 INFO L481 AbstractCegarLoop]: Abstraction has 20560 states. [2021-01-20 15:10:24,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:24,158 INFO L276 IsEmpty]: Start isEmpty. Operand 20560 states. [2021-01-20 15:10:24,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:24,180 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:24,180 INFO L504 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] [2021-01-20 15:10:24,181 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2021-01-20 15:10:24,181 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:24,181 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:24,181 INFO L82 PathProgramCache]: Analyzing trace with hash -1658415699, now seen corresponding path program 27 times [2021-01-20 15:10:24,181 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:24,182 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1805430296] [2021-01-20 15:10:24,182 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:24,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:25,189 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:10:25,372 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:10:25,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:25,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1805430296] [2021-01-20 15:10:25,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:25,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:25,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [322952614] [2021-01-20 15:10:25,646 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:25,647 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:25,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:25,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:25,648 INFO L87 Difference]: Start difference. First operand 20560 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:26,348 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:10:26,571 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:10:26,887 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:10:27,153 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:10:27,858 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:28,141 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:10:28,491 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:10:28,860 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 15:10:29,281 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 15:10:29,631 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:10:30,068 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:10:30,711 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:10:30,986 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:10:31,254 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 15:10:31,533 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 15:10:31,759 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:32,029 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:10:32,305 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:10:32,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:32,324 INFO L93 Difference]: Finished difference Result 20930 states and 43347 transitions. [2021-01-20 15:10:32,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:10:32,325 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:32,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:32,343 INFO L225 Difference]: With dead ends: 20930 [2021-01-20 15:10:32,343 INFO L226 Difference]: Without dead ends: 20930 [2021-01-20 15:10:32,344 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=524, Invalid=1546, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:10:32,344 INFO L78 Accepts]: Start accepts. Automaton has 20930 states. Word has length 90 [2021-01-20 15:10:32,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:32,345 INFO L481 AbstractCegarLoop]: Abstraction has 20930 states. [2021-01-20 15:10:32,345 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:32,345 INFO L276 IsEmpty]: Start isEmpty. Operand 20930 states. [2021-01-20 15:10:32,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:32,364 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:32,364 INFO L504 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] [2021-01-20 15:10:32,364 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2021-01-20 15:10:32,364 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:32,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:32,365 INFO L82 PathProgramCache]: Analyzing trace with hash -96257925, now seen corresponding path program 28 times [2021-01-20 15:10:32,365 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:32,365 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [39568049] [2021-01-20 15:10:32,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:32,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:33,436 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:10:33,607 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:10:33,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:33,850 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [39568049] [2021-01-20 15:10:33,850 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:33,850 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:33,851 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247287517] [2021-01-20 15:10:33,851 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:33,851 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:33,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:33,852 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:33,852 INFO L87 Difference]: Start difference. First operand 20930 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:34,467 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:10:34,666 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:10:34,964 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:10:35,226 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:10:35,850 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:36,132 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:10:36,460 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:10:36,826 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 15:10:37,204 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 15:10:37,634 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 15:10:38,005 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 15:10:38,455 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 15:10:39,079 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:10:39,357 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:10:39,622 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 15:10:39,904 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 15:10:40,135 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:10:40,407 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:10:40,686 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:10:40,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:40,704 INFO L93 Difference]: Finished difference Result 20941 states and 43357 transitions. [2021-01-20 15:10:40,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:10:40,705 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:40,705 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:40,724 INFO L225 Difference]: With dead ends: 20941 [2021-01-20 15:10:40,724 INFO L226 Difference]: Without dead ends: 20941 [2021-01-20 15:10:40,725 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=556, Invalid=1606, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:10:40,725 INFO L78 Accepts]: Start accepts. Automaton has 20941 states. Word has length 90 [2021-01-20 15:10:40,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:40,725 INFO L481 AbstractCegarLoop]: Abstraction has 20941 states. [2021-01-20 15:10:40,725 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:40,725 INFO L276 IsEmpty]: Start isEmpty. Operand 20941 states. [2021-01-20 15:10:40,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:40,745 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:40,745 INFO L504 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] [2021-01-20 15:10:40,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2021-01-20 15:10:40,745 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:40,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:40,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1420152759, now seen corresponding path program 29 times [2021-01-20 15:10:40,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:40,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1671071753] [2021-01-20 15:10:40,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:40,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:41,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:41,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1671071753] [2021-01-20 15:10:41,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:41,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:41,355 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177875789] [2021-01-20 15:10:41,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:41,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:41,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:41,356 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:41,356 INFO L87 Difference]: Start difference. First operand 20941 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:42,894 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 15:10:43,715 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:43,715 INFO L93 Difference]: Finished difference Result 26904 states and 55642 transitions. [2021-01-20 15:10:43,716 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-01-20 15:10:43,716 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:43,717 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:43,741 INFO L225 Difference]: With dead ends: 26904 [2021-01-20 15:10:43,741 INFO L226 Difference]: Without dead ends: 26904 [2021-01-20 15:10:43,741 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=294, Invalid=698, Unknown=0, NotChecked=0, Total=992 [2021-01-20 15:10:43,742 INFO L78 Accepts]: Start accepts. Automaton has 26904 states. Word has length 90 [2021-01-20 15:10:43,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:43,742 INFO L481 AbstractCegarLoop]: Abstraction has 26904 states. [2021-01-20 15:10:43,742 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:43,742 INFO L276 IsEmpty]: Start isEmpty. Operand 26904 states. [2021-01-20 15:10:43,767 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:43,768 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:43,768 INFO L504 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] [2021-01-20 15:10:43,768 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2021-01-20 15:10:43,768 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:43,768 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:43,769 INFO L82 PathProgramCache]: Analyzing trace with hash -1226318941, now seen corresponding path program 30 times [2021-01-20 15:10:43,769 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:43,769 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [645996017] [2021-01-20 15:10:43,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:43,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:44,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:44,420 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [645996017] [2021-01-20 15:10:44,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:44,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2021-01-20 15:10:44,421 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1014332687] [2021-01-20 15:10:44,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2021-01-20 15:10:44,421 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:44,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-01-20 15:10:44,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2021-01-20 15:10:44,422 INFO L87 Difference]: Start difference. First operand 26904 states. Second operand has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:46,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:46,765 INFO L93 Difference]: Finished difference Result 28390 states and 57555 transitions. [2021-01-20 15:10:46,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-01-20 15:10:46,766 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:46,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:46,798 INFO L225 Difference]: With dead ends: 28390 [2021-01-20 15:10:46,798 INFO L226 Difference]: Without dead ends: 28390 [2021-01-20 15:10:46,798 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 105 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=321, Invalid=801, Unknown=0, NotChecked=0, Total=1122 [2021-01-20 15:10:46,799 INFO L78 Accepts]: Start accepts. Automaton has 28390 states. Word has length 90 [2021-01-20 15:10:46,799 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:46,799 INFO L481 AbstractCegarLoop]: Abstraction has 28390 states. [2021-01-20 15:10:46,799 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.0) internal successors, (90), 18 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:46,799 INFO L276 IsEmpty]: Start isEmpty. Operand 28390 states. [2021-01-20 15:10:46,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:46,832 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:46,832 INFO L504 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] [2021-01-20 15:10:46,832 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2021-01-20 15:10:46,832 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:46,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:46,833 INFO L82 PathProgramCache]: Analyzing trace with hash -466205141, now seen corresponding path program 31 times [2021-01-20 15:10:46,833 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:46,833 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845909927] [2021-01-20 15:10:46,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:46,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:47,758 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:10:47,931 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:10:48,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:48,176 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845909927] [2021-01-20 15:10:48,176 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:48,176 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:48,177 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533535743] [2021-01-20 15:10:48,177 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:48,177 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:48,177 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:48,177 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:48,178 INFO L87 Difference]: Start difference. First operand 28390 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:48,778 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:10:48,978 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:10:49,270 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:10:49,531 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:10:49,824 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:10:50,199 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:10:50,586 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 15:10:50,997 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:10:51,572 WARN L193 SmtUtils]: Spent 518.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:10:52,015 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 15:10:52,832 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:10:53,269 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 15:10:54,005 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:10:54,410 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 15:10:54,781 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:10:55,203 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 15:10:55,623 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 15:10:56,061 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 15:10:56,444 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:10:56,863 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 15:10:57,238 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:10:57,642 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:10:57,667 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:10:57,667 INFO L93 Difference]: Finished difference Result 31203 states and 63210 transitions. [2021-01-20 15:10:57,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-01-20 15:10:57,668 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:10:57,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:10:57,694 INFO L225 Difference]: With dead ends: 31203 [2021-01-20 15:10:57,694 INFO L226 Difference]: Without dead ends: 31203 [2021-01-20 15:10:57,695 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=748, Invalid=1702, Unknown=0, NotChecked=0, Total=2450 [2021-01-20 15:10:57,695 INFO L78 Accepts]: Start accepts. Automaton has 31203 states. Word has length 90 [2021-01-20 15:10:57,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:10:57,695 INFO L481 AbstractCegarLoop]: Abstraction has 31203 states. [2021-01-20 15:10:57,695 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:57,695 INFO L276 IsEmpty]: Start isEmpty. Operand 31203 states. [2021-01-20 15:10:57,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:10:57,722 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:10:57,722 INFO L504 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] [2021-01-20 15:10:57,723 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2021-01-20 15:10:57,723 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:10:57,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:10:57,723 INFO L82 PathProgramCache]: Analyzing trace with hash -1966408727, now seen corresponding path program 32 times [2021-01-20 15:10:57,723 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:10:57,724 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627850932] [2021-01-20 15:10:57,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:10:57,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:10:58,680 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:10:58,821 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:10:58,986 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:10:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:10:59,193 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627850932] [2021-01-20 15:10:59,194 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:10:59,194 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:10:59,194 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507687141] [2021-01-20 15:10:59,195 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:10:59,195 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:10:59,195 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:10:59,195 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:10:59,196 INFO L87 Difference]: Start difference. First operand 31203 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:10:59,825 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:11:00,030 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:11:00,322 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:11:00,791 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:11:01,083 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:11:01,463 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:01,862 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 15:11:02,273 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:11:02,648 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:11:03,091 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 15:11:03,883 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:11:04,268 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:11:04,692 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:11:05,478 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:11:05,886 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 15:11:06,261 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:11:06,682 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 15:11:07,079 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 15:11:07,517 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 15:11:07,904 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:11:08,505 WARN L193 SmtUtils]: Spent 549.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 15:11:08,888 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:11:09,300 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:11:09,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:09,325 INFO L93 Difference]: Finished difference Result 31251 states and 63255 transitions. [2021-01-20 15:11:09,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-01-20 15:11:09,325 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:11:09,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:09,348 INFO L225 Difference]: With dead ends: 31251 [2021-01-20 15:11:09,348 INFO L226 Difference]: Without dead ends: 31251 [2021-01-20 15:11:09,349 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=749, Invalid=1801, Unknown=0, NotChecked=0, Total=2550 [2021-01-20 15:11:09,349 INFO L78 Accepts]: Start accepts. Automaton has 31251 states. Word has length 90 [2021-01-20 15:11:09,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:09,349 INFO L481 AbstractCegarLoop]: Abstraction has 31251 states. [2021-01-20 15:11:09,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:09,350 INFO L276 IsEmpty]: Start isEmpty. Operand 31251 states. [2021-01-20 15:11:09,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:11:09,374 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:09,374 INFO L504 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] [2021-01-20 15:11:09,374 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2021-01-20 15:11:09,374 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:09,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:09,374 INFO L82 PathProgramCache]: Analyzing trace with hash -1851094277, now seen corresponding path program 33 times [2021-01-20 15:11:09,374 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:09,375 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1100490051] [2021-01-20 15:11:09,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:09,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:10,368 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:11:10,534 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:11:10,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:10,769 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1100490051] [2021-01-20 15:11:10,769 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:10,770 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:10,770 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920548431] [2021-01-20 15:11:10,770 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:10,770 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:10,771 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:10,771 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:10,771 INFO L87 Difference]: Start difference. First operand 31251 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:11,377 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:11:11,572 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:11:11,852 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:11:12,109 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:11:12,402 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:11:12,770 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:13,149 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 15:11:13,552 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:11:14,270 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:11:14,639 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:11:15,038 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:11:15,482 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:11:16,377 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:11:16,757 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:11:17,155 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 15:11:17,500 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:11:17,874 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:11:18,259 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:11:18,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:18,278 INFO L93 Difference]: Finished difference Result 31247 states and 63251 transitions. [2021-01-20 15:11:18,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:11:18,279 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:11:18,279 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:18,301 INFO L225 Difference]: With dead ends: 31247 [2021-01-20 15:11:18,301 INFO L226 Difference]: Without dead ends: 31247 [2021-01-20 15:11:18,301 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=568, Invalid=1502, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:11:18,301 INFO L78 Accepts]: Start accepts. Automaton has 31247 states. Word has length 90 [2021-01-20 15:11:18,302 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:18,302 INFO L481 AbstractCegarLoop]: Abstraction has 31247 states. [2021-01-20 15:11:18,302 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:18,302 INFO L276 IsEmpty]: Start isEmpty. Operand 31247 states. [2021-01-20 15:11:18,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:11:18,324 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:18,324 INFO L504 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] [2021-01-20 15:11:18,324 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2021-01-20 15:11:18,325 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:18,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:18,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1690825077, now seen corresponding path program 34 times [2021-01-20 15:11:18,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:18,325 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724078652] [2021-01-20 15:11:18,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:18,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:19,219 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:11:19,414 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:11:19,665 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:19,665 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724078652] [2021-01-20 15:11:19,665 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:19,666 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:19,666 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1143389850] [2021-01-20 15:11:19,666 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:19,666 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:19,667 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:19,667 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:19,667 INFO L87 Difference]: Start difference. First operand 31247 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:20,298 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:11:20,498 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:11:20,781 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:11:21,042 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:11:21,334 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:11:21,701 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:22,077 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:11:22,500 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 15:11:22,841 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 15:11:23,273 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-01-20 15:11:24,036 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-01-20 15:11:24,571 WARN L193 SmtUtils]: Spent 463.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 15:11:25,308 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-01-20 15:11:25,707 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-01-20 15:11:26,073 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-01-20 15:11:26,496 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 15:11:26,879 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 15:11:27,321 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 15:11:27,694 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:11:28,113 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 15:11:28,482 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:11:28,885 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:11:28,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:28,913 INFO L93 Difference]: Finished difference Result 34267 states and 69399 transitions. [2021-01-20 15:11:28,913 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-01-20 15:11:28,914 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:11:28,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:28,942 INFO L225 Difference]: With dead ends: 34267 [2021-01-20 15:11:28,942 INFO L226 Difference]: Without dead ends: 34267 [2021-01-20 15:11:28,942 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=755, Invalid=1695, Unknown=0, NotChecked=0, Total=2450 [2021-01-20 15:11:28,943 INFO L78 Accepts]: Start accepts. Automaton has 34267 states. Word has length 90 [2021-01-20 15:11:28,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:28,943 INFO L481 AbstractCegarLoop]: Abstraction has 34267 states. [2021-01-20 15:11:28,943 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 34267 states. [2021-01-20 15:11:28,971 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:11:28,971 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:28,972 INFO L504 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] [2021-01-20 15:11:28,972 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2021-01-20 15:11:28,972 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:28,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:28,972 INFO L82 PathProgramCache]: Analyzing trace with hash -230677867, now seen corresponding path program 35 times [2021-01-20 15:11:28,972 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:28,973 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490167286] [2021-01-20 15:11:28,973 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:28,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:29,878 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:11:30,024 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:11:30,197 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:11:30,419 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:30,419 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [490167286] [2021-01-20 15:11:30,420 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:30,420 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:30,420 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1162915113] [2021-01-20 15:11:30,420 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:30,420 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:30,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:30,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:30,421 INFO L87 Difference]: Start difference. First operand 34267 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:31,050 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:11:31,254 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:11:31,539 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:11:31,805 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:11:32,106 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:11:32,622 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:33,006 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:11:33,428 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 15:11:33,766 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:11:34,202 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-01-20 15:11:34,996 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 15:11:35,352 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:11:35,769 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:11:36,551 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:11:36,960 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:11:37,330 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:11:37,759 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-01-20 15:11:38,166 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:11:38,642 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-01-20 15:11:39,037 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 15:11:39,462 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-01-20 15:11:39,836 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 15:11:40,248 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-01-20 15:11:40,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:40,275 INFO L93 Difference]: Finished difference Result 34315 states and 69444 transitions. [2021-01-20 15:11:40,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-01-20 15:11:40,277 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:11:40,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:40,307 INFO L225 Difference]: With dead ends: 34315 [2021-01-20 15:11:40,308 INFO L226 Difference]: Without dead ends: 34315 [2021-01-20 15:11:40,308 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 252 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=750, Invalid=1800, Unknown=0, NotChecked=0, Total=2550 [2021-01-20 15:11:40,308 INFO L78 Accepts]: Start accepts. Automaton has 34315 states. Word has length 90 [2021-01-20 15:11:40,308 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:40,308 INFO L481 AbstractCegarLoop]: Abstraction has 34315 states. [2021-01-20 15:11:40,308 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:40,308 INFO L276 IsEmpty]: Start isEmpty. Operand 34315 states. [2021-01-20 15:11:40,337 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:11:40,338 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:40,338 INFO L504 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] [2021-01-20 15:11:40,338 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2021-01-20 15:11:40,338 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:40,338 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:40,338 INFO L82 PathProgramCache]: Analyzing trace with hash -2123991779, now seen corresponding path program 36 times [2021-01-20 15:11:40,339 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:40,339 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1793507722] [2021-01-20 15:11:40,339 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:40,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:41,487 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:11:41,664 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:11:41,906 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:41,906 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1793507722] [2021-01-20 15:11:41,906 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:41,906 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:41,906 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558227641] [2021-01-20 15:11:41,907 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:41,907 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:41,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:41,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:41,907 INFO L87 Difference]: Start difference. First operand 34315 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:42,548 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:11:42,753 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:11:43,047 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:11:43,316 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:11:43,619 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:11:44,006 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:44,394 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:11:44,805 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:11:45,535 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 15:11:45,897 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:11:46,285 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 15:11:46,717 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:11:47,501 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:11:47,872 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:11:48,261 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:11:48,600 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 15:11:49,138 WARN L193 SmtUtils]: Spent 488.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 15:11:49,517 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 15:11:49,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:49,536 INFO L93 Difference]: Finished difference Result 34363 states and 69489 transitions. [2021-01-20 15:11:49,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:11:49,537 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:11:49,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:49,560 INFO L225 Difference]: With dead ends: 34363 [2021-01-20 15:11:49,560 INFO L226 Difference]: Without dead ends: 34363 [2021-01-20 15:11:49,561 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=569, Invalid=1501, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:11:49,561 INFO L78 Accepts]: Start accepts. Automaton has 34363 states. Word has length 90 [2021-01-20 15:11:49,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:49,561 INFO L481 AbstractCegarLoop]: Abstraction has 34363 states. [2021-01-20 15:11:49,561 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:49,561 INFO L276 IsEmpty]: Start isEmpty. Operand 34363 states. [2021-01-20 15:11:49,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:11:49,586 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:49,586 INFO L504 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] [2021-01-20 15:11:49,587 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2021-01-20 15:11:49,587 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:49,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:49,587 INFO L82 PathProgramCache]: Analyzing trace with hash -414283405, now seen corresponding path program 37 times [2021-01-20 15:11:49,587 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:49,588 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592790659] [2021-01-20 15:11:49,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:49,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:50,579 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:11:50,747 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:11:50,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:50,985 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592790659] [2021-01-20 15:11:50,987 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:50,987 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:50,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1088041158] [2021-01-20 15:11:50,988 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:50,988 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:50,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:50,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:50,989 INFO L87 Difference]: Start difference. First operand 34363 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:51,613 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:11:51,816 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:11:52,102 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:11:52,369 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:11:52,670 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:11:53,044 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:11:53,708 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:11:54,057 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:11:54,447 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:11:54,844 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:11:55,293 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:11:55,996 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 15:11:56,346 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 15:11:56,682 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 15:11:57,037 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 15:11:57,335 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:11:57,823 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 15:11:58,174 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 15:11:58,198 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:11:58,198 INFO L93 Difference]: Finished difference Result 34396 states and 69520 transitions. [2021-01-20 15:11:58,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:11:58,200 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:11:58,200 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:11:58,223 INFO L225 Difference]: With dead ends: 34396 [2021-01-20 15:11:58,223 INFO L226 Difference]: Without dead ends: 34396 [2021-01-20 15:11:58,223 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=553, Invalid=1517, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:11:58,223 INFO L78 Accepts]: Start accepts. Automaton has 34396 states. Word has length 90 [2021-01-20 15:11:58,224 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:11:58,224 INFO L481 AbstractCegarLoop]: Abstraction has 34396 states. [2021-01-20 15:11:58,224 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:11:58,224 INFO L276 IsEmpty]: Start isEmpty. Operand 34396 states. [2021-01-20 15:11:58,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:11:58,251 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:11:58,252 INFO L504 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] [2021-01-20 15:11:58,252 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2021-01-20 15:11:58,252 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:11:58,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:11:58,252 INFO L82 PathProgramCache]: Analyzing trace with hash 1872055529, now seen corresponding path program 38 times [2021-01-20 15:11:58,253 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:11:58,253 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [450031163] [2021-01-20 15:11:58,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:11:58,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:11:59,245 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:11:59,419 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:11:59,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:11:59,651 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [450031163] [2021-01-20 15:11:59,651 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:11:59,651 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:11:59,651 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181496859] [2021-01-20 15:11:59,651 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:11:59,652 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:11:59,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:11:59,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:11:59,652 INFO L87 Difference]: Start difference. First operand 34396 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:00,281 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:12:00,484 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:12:00,772 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:12:01,037 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:12:01,336 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:12:01,711 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:12:02,381 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:12:02,737 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 15:12:03,154 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 15:12:03,516 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:12:03,957 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:12:04,668 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 15:12:05,022 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 15:12:05,362 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 15:12:05,901 WARN L193 SmtUtils]: Spent 475.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 15:12:06,202 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:12:06,548 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 15:12:06,906 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 15:12:06,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:12:06,933 INFO L93 Difference]: Finished difference Result 34407 states and 69530 transitions. [2021-01-20 15:12:06,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:12:06,934 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:12:06,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:12:06,958 INFO L225 Difference]: With dead ends: 34407 [2021-01-20 15:12:06,959 INFO L226 Difference]: Without dead ends: 34407 [2021-01-20 15:12:06,959 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 213 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=554, Invalid=1516, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:12:06,959 INFO L78 Accepts]: Start accepts. Automaton has 34407 states. Word has length 90 [2021-01-20 15:12:06,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:12:06,959 INFO L481 AbstractCegarLoop]: Abstraction has 34407 states. [2021-01-20 15:12:06,959 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:06,959 INFO L276 IsEmpty]: Start isEmpty. Operand 34407 states. [2021-01-20 15:12:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:12:06,986 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:12:06,986 INFO L504 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] [2021-01-20 15:12:06,986 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2021-01-20 15:12:06,986 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:12:06,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:12:06,987 INFO L82 PathProgramCache]: Analyzing trace with hash -1421891481, now seen corresponding path program 39 times [2021-01-20 15:12:06,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:12:06,987 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293779240] [2021-01-20 15:12:06,987 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:12:07,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:12:07,928 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:12:08,111 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:12:08,378 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:12:08,378 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293779240] [2021-01-20 15:12:08,379 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:12:08,379 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:12:08,379 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968678897] [2021-01-20 15:12:08,379 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:12:08,379 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:12:08,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:12:08,380 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=479, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:12:08,380 INFO L87 Difference]: Start difference. First operand 34407 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:09,071 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:12:09,281 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:12:09,582 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:12:09,853 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:12:10,154 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:12:10,497 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:12:10,875 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-01-20 15:12:11,278 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 15:12:11,732 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:12:12,097 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-01-20 15:12:12,573 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2021-01-20 15:12:13,312 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-01-20 15:12:13,763 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2021-01-20 15:12:14,376 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2021-01-20 15:12:15,166 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 15:12:15,581 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2021-01-20 15:12:15,927 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 15:12:16,358 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-01-20 15:12:16,723 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-01-20 15:12:17,173 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-01-20 15:12:17,528 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:12:17,956 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-20 15:12:18,313 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:12:18,738 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:12:18,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:12:18,766 INFO L93 Difference]: Finished difference Result 35023 states and 70518 transitions. [2021-01-20 15:12:18,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-20 15:12:18,767 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:12:18,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:12:18,794 INFO L225 Difference]: With dead ends: 35023 [2021-01-20 15:12:18,794 INFO L226 Difference]: Without dead ends: 35023 [2021-01-20 15:12:18,795 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 246 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=812, Invalid=1840, Unknown=0, NotChecked=0, Total=2652 [2021-01-20 15:12:18,795 INFO L78 Accepts]: Start accepts. Automaton has 35023 states. Word has length 90 [2021-01-20 15:12:18,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:12:18,795 INFO L481 AbstractCegarLoop]: Abstraction has 35023 states. [2021-01-20 15:12:18,795 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:18,795 INFO L276 IsEmpty]: Start isEmpty. Operand 35023 states. [2021-01-20 15:12:18,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:12:18,836 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:12:18,836 INFO L504 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] [2021-01-20 15:12:18,837 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2021-01-20 15:12:18,837 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:12:18,837 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:12:18,837 INFO L82 PathProgramCache]: Analyzing trace with hash 951572871, now seen corresponding path program 40 times [2021-01-20 15:12:18,837 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:12:18,838 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1591875663] [2021-01-20 15:12:18,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:12:18,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:12:19,788 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:12:19,936 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:12:20,106 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:12:20,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:12:20,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1591875663] [2021-01-20 15:12:20,342 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:12:20,342 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:12:20,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [191366375] [2021-01-20 15:12:20,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:12:20,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:12:20,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:12:20,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=483, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:12:20,344 INFO L87 Difference]: Start difference. First operand 35023 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:21,020 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:12:21,233 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:12:21,533 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:12:21,808 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:12:22,115 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:12:22,466 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:12:22,999 WARN L193 SmtUtils]: Spent 422.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 15:12:23,401 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 15:12:23,859 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:12:24,227 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-01-20 15:12:24,714 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-01-20 15:12:25,468 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:12:25,946 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:12:26,327 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 15:12:26,798 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:12:27,627 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 15:12:28,051 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:12:28,406 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 15:12:28,847 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-20 15:12:29,219 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 15:12:29,674 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-01-20 15:12:30,034 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 15:12:30,466 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-01-20 15:12:30,834 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 15:12:31,256 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-01-20 15:12:31,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:12:31,284 INFO L93 Difference]: Finished difference Result 35019 states and 70514 transitions. [2021-01-20 15:12:31,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 15:12:31,285 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:12:31,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:12:31,315 INFO L225 Difference]: With dead ends: 35019 [2021-01-20 15:12:31,315 INFO L226 Difference]: Without dead ends: 35019 [2021-01-20 15:12:31,316 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 282 ImplicationChecksByTransitivity, 10.2s TimeCoverageRelationStatistics Valid=804, Invalid=1952, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 15:12:31,316 INFO L78 Accepts]: Start accepts. Automaton has 35019 states. Word has length 90 [2021-01-20 15:12:31,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:12:31,317 INFO L481 AbstractCegarLoop]: Abstraction has 35019 states. [2021-01-20 15:12:31,317 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:31,317 INFO L276 IsEmpty]: Start isEmpty. Operand 35019 states. [2021-01-20 15:12:31,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:12:31,348 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:12:31,348 INFO L504 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] [2021-01-20 15:12:31,348 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2021-01-20 15:12:31,348 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:12:31,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:12:31,349 INFO L82 PathProgramCache]: Analyzing trace with hash -941741041, now seen corresponding path program 41 times [2021-01-20 15:12:31,349 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:12:31,349 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1919770037] [2021-01-20 15:12:31,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:12:31,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:12:32,515 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:12:32,697 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:12:32,933 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:12:32,933 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1919770037] [2021-01-20 15:12:32,933 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:12:32,934 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:12:32,934 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2139603777] [2021-01-20 15:12:32,934 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:12:32,934 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:12:32,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:12:32,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:12:32,935 INFO L87 Difference]: Start difference. First operand 35019 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:33,585 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:12:33,794 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:12:34,094 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:12:34,367 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:12:34,673 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:12:35,025 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:12:35,405 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 15:12:35,814 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 15:12:36,257 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-01-20 15:12:37,055 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:12:37,428 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 15:12:37,839 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 15:12:38,247 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:12:38,735 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:12:39,594 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 15:12:39,975 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 15:12:40,333 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 15:12:40,916 WARN L193 SmtUtils]: Spent 522.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 15:12:41,296 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 15:12:41,710 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-01-20 15:12:42,087 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 15:12:42,435 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 15:12:42,834 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:12:43,197 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 15:12:43,584 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:12:43,612 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:12:43,613 INFO L93 Difference]: Finished difference Result 35015 states and 70510 transitions. [2021-01-20 15:12:43,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 15:12:43,614 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:12:43,614 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:12:43,643 INFO L225 Difference]: With dead ends: 35015 [2021-01-20 15:12:43,643 INFO L226 Difference]: Without dead ends: 35015 [2021-01-20 15:12:43,643 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 293 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=788, Invalid=1968, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 15:12:43,643 INFO L78 Accepts]: Start accepts. Automaton has 35015 states. Word has length 90 [2021-01-20 15:12:43,643 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:12:43,644 INFO L481 AbstractCegarLoop]: Abstraction has 35015 states. [2021-01-20 15:12:43,644 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:43,644 INFO L276 IsEmpty]: Start isEmpty. Operand 35015 states. [2021-01-20 15:12:43,669 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:12:43,670 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:12:43,670 INFO L504 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] [2021-01-20 15:12:43,670 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2021-01-20 15:12:43,670 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:12:43,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:12:43,670 INFO L82 PathProgramCache]: Analyzing trace with hash 321496745, now seen corresponding path program 42 times [2021-01-20 15:12:43,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:12:43,671 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258563963] [2021-01-20 15:12:43,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:12:43,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:12:44,678 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:12:44,856 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:12:45,101 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:12:45,101 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258563963] [2021-01-20 15:12:45,102 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:12:45,102 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:12:45,102 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295158130] [2021-01-20 15:12:45,102 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:12:45,102 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:12:45,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:12:45,103 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:12:45,103 INFO L87 Difference]: Start difference. First operand 35015 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:45,780 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:12:45,991 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:12:46,293 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:12:46,574 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:12:46,884 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:12:47,238 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:12:47,620 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 15:12:48,417 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 15:12:48,765 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:12:49,155 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 15:12:49,568 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 15:12:50,099 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:12:50,562 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:12:51,368 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 15:12:51,724 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 15:12:52,102 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 15:12:52,427 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 15:12:52,779 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 15:12:53,146 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 15:12:53,164 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:12:53,165 INFO L93 Difference]: Finished difference Result 35011 states and 70506 transitions. [2021-01-20 15:12:53,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:12:53,166 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:12:53,166 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:12:53,194 INFO L225 Difference]: With dead ends: 35011 [2021-01-20 15:12:53,194 INFO L226 Difference]: Without dead ends: 35011 [2021-01-20 15:12:53,195 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 219 ImplicationChecksByTransitivity, 7.5s TimeCoverageRelationStatistics Valid=586, Invalid=1576, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:12:53,195 INFO L78 Accepts]: Start accepts. Automaton has 35011 states. Word has length 90 [2021-01-20 15:12:53,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:12:53,195 INFO L481 AbstractCegarLoop]: Abstraction has 35011 states. [2021-01-20 15:12:53,195 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:53,195 INFO L276 IsEmpty]: Start isEmpty. Operand 35011 states. [2021-01-20 15:12:53,224 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:12:53,224 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:12:53,224 INFO L504 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] [2021-01-20 15:12:53,224 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2021-01-20 15:12:53,225 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:12:53,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:12:53,225 INFO L82 PathProgramCache]: Analyzing trace with hash 91382297, now seen corresponding path program 43 times [2021-01-20 15:12:53,225 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:12:53,225 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421544440] [2021-01-20 15:12:53,225 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:12:53,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:12:54,261 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:12:54,441 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:12:54,705 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:12:54,705 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421544440] [2021-01-20 15:12:54,705 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:12:54,705 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:12:54,705 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1063982319] [2021-01-20 15:12:54,706 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:12:54,706 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:12:54,706 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:12:54,706 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:12:54,707 INFO L87 Difference]: Start difference. First operand 35011 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:12:55,370 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:12:55,581 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:12:55,891 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:12:56,171 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:12:56,485 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:12:57,213 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:12:57,557 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:12:57,927 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:12:58,336 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:12:58,749 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:12:59,374 WARN L193 SmtUtils]: Spent 538.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:13:00,086 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 15:13:00,405 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-20 15:13:00,716 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:13:01,049 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:13:01,324 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:01,643 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-01-20 15:13:01,971 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-01-20 15:13:01,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:13:01,998 INFO L93 Difference]: Finished difference Result 35044 states and 70537 transitions. [2021-01-20 15:13:01,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:13:01,999 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:13:02,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:13:02,027 INFO L225 Difference]: With dead ends: 35044 [2021-01-20 15:13:02,027 INFO L226 Difference]: Without dead ends: 35044 [2021-01-20 15:13:02,027 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=538, Invalid=1532, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:13:02,027 INFO L78 Accepts]: Start accepts. Automaton has 35044 states. Word has length 90 [2021-01-20 15:13:02,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:13:02,028 INFO L481 AbstractCegarLoop]: Abstraction has 35044 states. [2021-01-20 15:13:02,028 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:02,028 INFO L276 IsEmpty]: Start isEmpty. Operand 35044 states. [2021-01-20 15:13:02,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:13:02,060 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:13:02,060 INFO L504 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] [2021-01-20 15:13:02,061 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2021-01-20 15:13:02,061 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:13:02,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:13:02,061 INFO L82 PathProgramCache]: Analyzing trace with hash -1917246065, now seen corresponding path program 44 times [2021-01-20 15:13:02,061 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:13:02,062 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1653978909] [2021-01-20 15:13:02,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:13:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:13:03,060 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:13:03,245 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:13:03,499 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:13:03,499 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1653978909] [2021-01-20 15:13:03,499 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:13:03,499 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:13:03,499 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138795413] [2021-01-20 15:13:03,499 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:13:03,500 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:13:03,500 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:13:03,500 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:13:03,500 INFO L87 Difference]: Start difference. First operand 35044 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:04,217 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:13:04,427 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:13:04,737 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:13:05,018 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:13:05,328 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:13:06,050 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:06,397 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:13:06,773 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 15:13:07,211 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 15:13:07,584 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:13:08,045 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:13:09,010 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 15:13:09,343 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-20 15:13:09,661 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:13:09,996 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:13:10,273 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:10,595 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-01-20 15:13:10,930 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-01-20 15:13:10,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:13:10,956 INFO L93 Difference]: Finished difference Result 35092 states and 70582 transitions. [2021-01-20 15:13:10,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:13:10,957 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:13:10,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:13:10,983 INFO L225 Difference]: With dead ends: 35092 [2021-01-20 15:13:10,983 INFO L226 Difference]: Without dead ends: 35092 [2021-01-20 15:13:10,983 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 6.7s TimeCoverageRelationStatistics Valid=539, Invalid=1531, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:13:10,983 INFO L78 Accepts]: Start accepts. Automaton has 35092 states. Word has length 90 [2021-01-20 15:13:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:13:10,984 INFO L481 AbstractCegarLoop]: Abstraction has 35092 states. [2021-01-20 15:13:10,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:10,984 INFO L276 IsEmpty]: Start isEmpty. Operand 35092 states. [2021-01-20 15:13:11,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:13:11,010 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:13:11,010 INFO L504 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] [2021-01-20 15:13:11,010 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2021-01-20 15:13:11,010 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:13:11,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:13:11,010 INFO L82 PathProgramCache]: Analyzing trace with hash -355088291, now seen corresponding path program 45 times [2021-01-20 15:13:11,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:13:11,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171408483] [2021-01-20 15:13:11,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:13:11,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:13:12,031 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:13:12,204 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:13:12,459 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:13:12,460 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171408483] [2021-01-20 15:13:12,460 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:13:12,460 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:13:12,460 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1333206634] [2021-01-20 15:13:12,460 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:13:12,460 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:13:12,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:13:12,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:13:12,461 INFO L87 Difference]: Start difference. First operand 35092 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:13,112 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:13:13,325 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:13:13,628 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:13:13,904 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:13:14,214 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:13:14,896 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:15,233 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:13:15,607 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 15:13:15,993 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 15:13:16,445 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 15:13:16,836 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 15:13:17,502 WARN L193 SmtUtils]: Spent 565.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 15:13:18,193 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2021-01-20 15:13:18,518 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 61 [2021-01-20 15:13:18,834 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:13:19,169 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:13:19,448 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:19,768 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 65 [2021-01-20 15:13:20,100 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 62 [2021-01-20 15:13:20,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:13:20,127 INFO L93 Difference]: Finished difference Result 35103 states and 70592 transitions. [2021-01-20 15:13:20,128 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:13:20,128 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:13:20,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:13:20,157 INFO L225 Difference]: With dead ends: 35103 [2021-01-20 15:13:20,157 INFO L226 Difference]: Without dead ends: 35103 [2021-01-20 15:13:20,157 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=571, Invalid=1591, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:13:20,157 INFO L78 Accepts]: Start accepts. Automaton has 35103 states. Word has length 90 [2021-01-20 15:13:20,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:13:20,158 INFO L481 AbstractCegarLoop]: Abstraction has 35103 states. [2021-01-20 15:13:20,158 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:20,158 INFO L276 IsEmpty]: Start isEmpty. Operand 35103 states. [2021-01-20 15:13:20,189 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:13:20,189 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:13:20,189 INFO L504 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] [2021-01-20 15:13:20,189 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2021-01-20 15:13:20,190 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:13:20,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:13:20,190 INFO L82 PathProgramCache]: Analyzing trace with hash 796492931, now seen corresponding path program 46 times [2021-01-20 15:13:20,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:13:20,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [432672933] [2021-01-20 15:13:20,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:13:20,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:13:21,068 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:13:21,348 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:13:21,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [432672933] [2021-01-20 15:13:21,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:13:21,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:13:21,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381193430] [2021-01-20 15:13:21,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:13:21,348 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:13:21,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:13:21,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:13:21,349 INFO L87 Difference]: Start difference. First operand 35103 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:22,028 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:13:22,229 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:13:22,543 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:13:23,125 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:13:23,364 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2021-01-20 15:13:23,684 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:24,043 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 15:13:24,493 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:13:24,914 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:13:25,362 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:13:25,971 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:13:26,203 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:13:26,632 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:13:26,884 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 15:13:27,082 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:13:27,324 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:13:27,582 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 15:13:27,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:13:27,603 INFO L93 Difference]: Finished difference Result 35203 states and 70686 transitions. [2021-01-20 15:13:27,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:13:27,604 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:13:27,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:13:27,629 INFO L225 Difference]: With dead ends: 35203 [2021-01-20 15:13:27,629 INFO L226 Difference]: Without dead ends: 35203 [2021-01-20 15:13:27,630 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 5.5s TimeCoverageRelationStatistics Valid=476, Invalid=1504, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:13:27,630 INFO L78 Accepts]: Start accepts. Automaton has 35203 states. Word has length 90 [2021-01-20 15:13:27,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:13:27,631 INFO L481 AbstractCegarLoop]: Abstraction has 35203 states. [2021-01-20 15:13:27,631 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:27,631 INFO L276 IsEmpty]: Start isEmpty. Operand 35203 states. [2021-01-20 15:13:27,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:13:27,663 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:13:27,663 INFO L504 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] [2021-01-20 15:13:27,663 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2021-01-20 15:13:27,663 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:13:27,664 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:13:27,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1302160089, now seen corresponding path program 47 times [2021-01-20 15:13:27,664 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:13:27,664 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1692817230] [2021-01-20 15:13:27,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:13:27,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:13:28,620 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:13:28,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:13:28,894 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1692817230] [2021-01-20 15:13:28,894 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:13:28,894 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:13:28,894 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82239695] [2021-01-20 15:13:28,894 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:13:28,894 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:13:28,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:13:28,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:13:28,895 INFO L87 Difference]: Start difference. First operand 35203 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:29,580 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:13:29,784 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 42 DAG size of output: 39 [2021-01-20 15:13:30,092 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:13:30,686 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:13:30,947 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:13:31,248 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:31,612 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 15:13:32,073 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:13:32,503 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:13:32,958 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:13:33,608 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2021-01-20 15:13:33,847 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2021-01-20 15:13:34,089 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2021-01-20 15:13:34,339 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2021-01-20 15:13:34,540 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2021-01-20 15:13:34,780 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2021-01-20 15:13:35,037 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2021-01-20 15:13:35,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:13:35,059 INFO L93 Difference]: Finished difference Result 35251 states and 70731 transitions. [2021-01-20 15:13:35,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:13:35,060 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:13:35,060 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:13:35,090 INFO L225 Difference]: With dead ends: 35251 [2021-01-20 15:13:35,090 INFO L226 Difference]: Without dead ends: 35251 [2021-01-20 15:13:35,090 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 206 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=476, Invalid=1504, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:13:35,091 INFO L78 Accepts]: Start accepts. Automaton has 35251 states. Word has length 90 [2021-01-20 15:13:35,091 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:13:35,091 INFO L481 AbstractCegarLoop]: Abstraction has 35251 states. [2021-01-20 15:13:35,091 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:35,091 INFO L276 IsEmpty]: Start isEmpty. Operand 35251 states. [2021-01-20 15:13:35,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:13:35,121 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:13:35,121 INFO L504 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] [2021-01-20 15:13:35,121 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2021-01-20 15:13:35,121 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:13:35,122 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:13:35,122 INFO L82 PathProgramCache]: Analyzing trace with hash 27096587, now seen corresponding path program 48 times [2021-01-20 15:13:35,122 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:13:35,122 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [539625437] [2021-01-20 15:13:35,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:13:35,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:13:36,408 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:13:36,601 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:13:36,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:13:36,876 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [539625437] [2021-01-20 15:13:36,877 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:13:36,877 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:13:36,877 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1778035455] [2021-01-20 15:13:36,877 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:13:36,877 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:13:36,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:13:36,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:13:36,878 INFO L87 Difference]: Start difference. First operand 35251 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:37,538 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:13:37,747 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:13:38,047 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:13:38,622 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:13:38,894 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:13:39,205 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:39,579 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:13:39,957 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:13:40,372 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:13:40,791 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:13:41,259 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:13:41,894 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 15:13:42,155 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:13:42,412 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 15:13:42,680 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-01-20 15:13:42,893 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:13:43,146 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:13:43,410 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 15:13:43,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:13:43,431 INFO L93 Difference]: Finished difference Result 35284 states and 70762 transitions. [2021-01-20 15:13:43,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:13:43,432 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:13:43,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:13:43,462 INFO L225 Difference]: With dead ends: 35284 [2021-01-20 15:13:43,462 INFO L226 Difference]: Without dead ends: 35284 [2021-01-20 15:13:43,462 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=508, Invalid=1562, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:13:43,462 INFO L78 Accepts]: Start accepts. Automaton has 35284 states. Word has length 90 [2021-01-20 15:13:43,463 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:13:43,463 INFO L481 AbstractCegarLoop]: Abstraction has 35284 states. [2021-01-20 15:13:43,463 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:43,463 INFO L276 IsEmpty]: Start isEmpty. Operand 35284 states. [2021-01-20 15:13:43,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:13:43,493 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:13:43,493 INFO L504 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] [2021-01-20 15:13:43,493 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2021-01-20 15:13:43,493 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:13:43,494 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:13:43,494 INFO L82 PathProgramCache]: Analyzing trace with hash -1981531775, now seen corresponding path program 49 times [2021-01-20 15:13:43,494 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:13:43,494 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1093398564] [2021-01-20 15:13:43,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:13:43,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:13:44,087 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2021-01-20 15:13:44,668 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:13:44,853 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:13:45,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:13:45,123 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1093398564] [2021-01-20 15:13:45,123 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:13:45,124 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:13:45,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408799897] [2021-01-20 15:13:45,124 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:13:45,124 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:13:45,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:13:45,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:13:45,125 INFO L87 Difference]: Start difference. First operand 35284 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:45,684 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:13:45,854 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:13:46,070 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:13:46,373 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:13:46,939 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:13:47,213 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:13:47,526 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:47,904 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:13:48,292 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 15:13:48,732 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 15:13:49,112 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:13:49,581 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:13:50,259 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 15:13:50,514 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:13:50,776 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 15:13:51,042 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-01-20 15:13:51,258 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:13:51,515 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:13:51,783 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 15:13:51,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:13:51,805 INFO L93 Difference]: Finished difference Result 35332 states and 70807 transitions. [2021-01-20 15:13:51,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:13:51,806 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:13:51,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:13:51,836 INFO L225 Difference]: With dead ends: 35332 [2021-01-20 15:13:51,836 INFO L226 Difference]: Without dead ends: 35332 [2021-01-20 15:13:51,836 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 216 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=509, Invalid=1561, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:13:51,837 INFO L78 Accepts]: Start accepts. Automaton has 35332 states. Word has length 90 [2021-01-20 15:13:51,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:13:51,837 INFO L481 AbstractCegarLoop]: Abstraction has 35332 states. [2021-01-20 15:13:51,837 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:51,837 INFO L276 IsEmpty]: Start isEmpty. Operand 35332 states. [2021-01-20 15:13:51,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:13:51,867 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:13:51,867 INFO L504 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] [2021-01-20 15:13:51,867 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2021-01-20 15:13:51,867 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:13:51,868 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:13:51,868 INFO L82 PathProgramCache]: Analyzing trace with hash -419374001, now seen corresponding path program 50 times [2021-01-20 15:13:51,868 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:13:51,868 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [808767376] [2021-01-20 15:13:51,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:13:51,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:13:52,950 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2021-01-20 15:13:53,112 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:13:53,305 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:13:53,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:13:53,584 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [808767376] [2021-01-20 15:13:53,584 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:13:53,585 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:13:53,585 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217306401] [2021-01-20 15:13:53,585 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:13:53,585 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:13:53,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:13:53,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:13:53,586 INFO L87 Difference]: Start difference. First operand 35332 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:13:54,102 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:13:54,270 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:13:54,485 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2021-01-20 15:13:54,794 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:13:55,370 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:13:55,645 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:13:55,960 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:13:56,321 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:13:56,735 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 15:13:57,141 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 15:13:57,614 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 15:13:58,018 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 15:13:58,516 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 15:13:59,207 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2021-01-20 15:13:59,468 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:13:59,722 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2021-01-20 15:13:59,983 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 58 [2021-01-20 15:14:00,197 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2021-01-20 15:14:00,458 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:14:00,725 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2021-01-20 15:14:00,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:14:00,747 INFO L93 Difference]: Finished difference Result 35343 states and 70817 transitions. [2021-01-20 15:14:00,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:14:00,748 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:14:00,748 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:14:00,781 INFO L225 Difference]: With dead ends: 35343 [2021-01-20 15:14:00,782 INFO L226 Difference]: Without dead ends: 35343 [2021-01-20 15:14:00,782 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=541, Invalid=1621, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:14:00,782 INFO L78 Accepts]: Start accepts. Automaton has 35343 states. Word has length 90 [2021-01-20 15:14:00,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:14:00,782 INFO L481 AbstractCegarLoop]: Abstraction has 35343 states. [2021-01-20 15:14:00,783 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:00,783 INFO L276 IsEmpty]: Start isEmpty. Operand 35343 states. [2021-01-20 15:14:00,814 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:14:00,814 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:14:00,814 INFO L504 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] [2021-01-20 15:14:00,815 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2021-01-20 15:14:00,815 INFO L429 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:14:00,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:14:00,815 INFO L82 PathProgramCache]: Analyzing trace with hash 266936513, now seen corresponding path program 51 times [2021-01-20 15:14:00,815 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:14:00,815 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [663424724] [2021-01-20 15:14:00,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:14:00,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:14:01,699 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:14:02,122 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:14:02,122 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [663424724] [2021-01-20 15:14:02,122 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:14:02,122 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:14:02,123 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1130117032] [2021-01-20 15:14:02,123 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:14:02,123 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:14:02,123 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:14:02,123 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:14:02,123 INFO L87 Difference]: Start difference. First operand 35343 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:02,784 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:14:03,067 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:14:03,345 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:14:03,608 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:14:03,928 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:14:04,775 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:14:05,112 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:14:05,542 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:14:05,966 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:14:06,416 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:07,130 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 15:14:07,424 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:14:07,728 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 15:14:08,050 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 15:14:08,328 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:14:08,627 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 15:14:08,939 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 15:14:08,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:14:08,958 INFO L93 Difference]: Finished difference Result 47651 states and 96530 transitions. [2021-01-20 15:14:08,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:14:08,960 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:14:08,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:14:09,002 INFO L225 Difference]: With dead ends: 47651 [2021-01-20 15:14:09,003 INFO L226 Difference]: Without dead ends: 47651 [2021-01-20 15:14:09,003 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=505, Invalid=1475, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:14:09,003 INFO L78 Accepts]: Start accepts. Automaton has 47651 states. Word has length 90 [2021-01-20 15:14:09,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:14:09,003 INFO L481 AbstractCegarLoop]: Abstraction has 47651 states. [2021-01-20 15:14:09,003 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:09,004 INFO L276 IsEmpty]: Start isEmpty. Operand 47651 states. [2021-01-20 15:14:09,043 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:14:09,043 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:14:09,043 INFO L504 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] [2021-01-20 15:14:09,043 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2021-01-20 15:14:09,043 INFO L429 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:14:09,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:14:09,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1314716625, now seen corresponding path program 52 times [2021-01-20 15:14:09,044 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:14:09,044 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374116441] [2021-01-20 15:14:09,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:14:09,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:14:09,928 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:14:10,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:14:10,216 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374116441] [2021-01-20 15:14:10,216 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:14:10,216 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:14:10,216 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1509053424] [2021-01-20 15:14:10,217 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:14:10,217 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:14:10,217 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:14:10,217 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:14:10,218 INFO L87 Difference]: Start difference. First operand 47651 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:10,948 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:14:11,393 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:14:11,663 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:14:11,928 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:14:12,248 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:14:12,616 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:14:13,129 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:14:13,580 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:14:14,056 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:14:14,978 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:14:15,772 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:14:16,198 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:14:16,644 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:14:17,075 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:14:17,510 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:17,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:14:17,531 INFO L93 Difference]: Finished difference Result 47844 states and 96849 transitions. [2021-01-20 15:14:17,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-20 15:14:17,532 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:14:17,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:14:17,570 INFO L225 Difference]: With dead ends: 47844 [2021-01-20 15:14:17,571 INFO L226 Difference]: Without dead ends: 47844 [2021-01-20 15:14:17,571 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=510, Invalid=1296, Unknown=0, NotChecked=0, Total=1806 [2021-01-20 15:14:17,571 INFO L78 Accepts]: Start accepts. Automaton has 47844 states. Word has length 90 [2021-01-20 15:14:17,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:14:17,571 INFO L481 AbstractCegarLoop]: Abstraction has 47844 states. [2021-01-20 15:14:17,571 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:17,571 INFO L276 IsEmpty]: Start isEmpty. Operand 47844 states. [2021-01-20 15:14:17,612 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:14:17,612 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:14:17,613 INFO L504 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] [2021-01-20 15:14:17,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2021-01-20 15:14:17,613 INFO L429 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:14:17,613 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:14:17,613 INFO L82 PathProgramCache]: Analyzing trace with hash -902644099, now seen corresponding path program 53 times [2021-01-20 15:14:17,613 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:14:17,613 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721071753] [2021-01-20 15:14:17,613 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:14:17,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:14:18,617 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:14:18,859 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:14:18,859 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721071753] [2021-01-20 15:14:18,859 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:14:18,860 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:14:18,860 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85114409] [2021-01-20 15:14:18,860 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:14:18,860 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:14:18,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:14:18,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:14:18,861 INFO L87 Difference]: Start difference. First operand 47844 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:19,598 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:14:20,052 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:14:20,331 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:14:20,602 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:14:20,933 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:14:21,309 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:14:21,841 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:14:22,297 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:14:22,785 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:14:23,692 WARN L193 SmtUtils]: Spent 347.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:14:24,117 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:24,980 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:14:25,412 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:14:25,870 WARN L193 SmtUtils]: Spent 395.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:14:26,313 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:14:26,761 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:26,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:14:26,783 INFO L93 Difference]: Finished difference Result 47840 states and 96845 transitions. [2021-01-20 15:14:26,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-20 15:14:26,784 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:14:26,784 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:14:27,013 INFO L225 Difference]: With dead ends: 47840 [2021-01-20 15:14:27,013 INFO L226 Difference]: Without dead ends: 47840 [2021-01-20 15:14:27,013 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=518, Invalid=1374, Unknown=0, NotChecked=0, Total=1892 [2021-01-20 15:14:27,014 INFO L78 Accepts]: Start accepts. Automaton has 47840 states. Word has length 90 [2021-01-20 15:14:27,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:14:27,014 INFO L481 AbstractCegarLoop]: Abstraction has 47840 states. [2021-01-20 15:14:27,014 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:27,014 INFO L276 IsEmpty]: Start isEmpty. Operand 47840 states. [2021-01-20 15:14:27,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:14:27,047 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:14:27,047 INFO L504 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] [2021-01-20 15:14:27,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2021-01-20 15:14:27,047 INFO L429 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:14:27,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:14:27,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1101262075, now seen corresponding path program 54 times [2021-01-20 15:14:27,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:14:27,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211326982] [2021-01-20 15:14:27,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:14:27,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:14:27,986 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:14:28,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:14:28,251 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211326982] [2021-01-20 15:14:28,251 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:14:28,251 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:14:28,251 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589717260] [2021-01-20 15:14:28,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:14:28,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:14:28,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:14:28,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:14:28,252 INFO L87 Difference]: Start difference. First operand 47840 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:28,984 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:14:29,275 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:14:29,549 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:14:29,834 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:14:30,182 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:14:30,578 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:14:31,105 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:14:31,966 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:14:32,380 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:14:32,835 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:33,626 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 15:14:34,031 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 15:14:34,430 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 15:14:34,849 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 15:14:35,353 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:14:35,754 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 15:14:36,174 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 15:14:36,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:14:36,204 INFO L93 Difference]: Finished difference Result 47836 states and 96841 transitions. [2021-01-20 15:14:36,205 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:14:36,205 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:14:36,205 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:14:36,240 INFO L225 Difference]: With dead ends: 47836 [2021-01-20 15:14:36,241 INFO L226 Difference]: Without dead ends: 47836 [2021-01-20 15:14:36,241 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 6.9s TimeCoverageRelationStatistics Valid=535, Invalid=1445, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:14:36,241 INFO L78 Accepts]: Start accepts. Automaton has 47836 states. Word has length 90 [2021-01-20 15:14:36,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:14:36,241 INFO L481 AbstractCegarLoop]: Abstraction has 47836 states. [2021-01-20 15:14:36,241 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:36,241 INFO L276 IsEmpty]: Start isEmpty. Operand 47836 states. [2021-01-20 15:14:36,275 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:14:36,276 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:14:36,276 INFO L504 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] [2021-01-20 15:14:36,276 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2021-01-20 15:14:36,276 INFO L429 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:14:36,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:14:36,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1670999071, now seen corresponding path program 55 times [2021-01-20 15:14:36,277 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:14:36,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933174832] [2021-01-20 15:14:36,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:14:36,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:14:37,022 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:14:37,189 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:14:37,453 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:14:37,453 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933174832] [2021-01-20 15:14:37,453 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:14:37,453 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:14:37,454 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [481828976] [2021-01-20 15:14:37,454 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:14:37,454 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:14:37,454 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:14:37,454 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:14:37,454 INFO L87 Difference]: Start difference. First operand 47836 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:38,171 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:14:38,453 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:14:38,750 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:14:39,030 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:14:39,362 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:14:39,745 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:14:40,631 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:14:41,039 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:14:41,474 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:14:41,930 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:42,685 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 15:14:43,053 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 15:14:43,557 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 15:14:43,931 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 15:14:44,246 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:14:44,611 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 15:14:44,994 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 15:14:45,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:14:45,025 INFO L93 Difference]: Finished difference Result 47832 states and 96837 transitions. [2021-01-20 15:14:45,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:14:45,026 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:14:45,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:14:45,057 INFO L225 Difference]: With dead ends: 47832 [2021-01-20 15:14:45,057 INFO L226 Difference]: Without dead ends: 47832 [2021-01-20 15:14:45,058 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=520, Invalid=1460, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:14:45,058 INFO L78 Accepts]: Start accepts. Automaton has 47832 states. Word has length 90 [2021-01-20 15:14:45,058 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:14:45,058 INFO L481 AbstractCegarLoop]: Abstraction has 47832 states. [2021-01-20 15:14:45,058 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:45,058 INFO L276 IsEmpty]: Start isEmpty. Operand 47832 states. [2021-01-20 15:14:45,092 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:14:45,092 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:14:45,092 INFO L504 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] [2021-01-20 15:14:45,092 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2021-01-20 15:14:45,093 INFO L429 AbstractCegarLoop]: === Iteration 59 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:14:45,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:14:45,093 INFO L82 PathProgramCache]: Analyzing trace with hash 47066477, now seen corresponding path program 56 times [2021-01-20 15:14:45,093 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:14:45,093 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908168782] [2021-01-20 15:14:45,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:14:45,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:14:46,018 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:14:46,304 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:14:46,305 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908168782] [2021-01-20 15:14:46,305 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:14:46,305 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:14:46,305 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619494626] [2021-01-20 15:14:46,305 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:14:46,305 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:14:46,306 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:14:46,306 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:14:46,306 INFO L87 Difference]: Start difference. First operand 47832 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:46,974 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:14:47,254 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:14:47,534 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:14:47,802 WARN L193 SmtUtils]: Spent 182.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:14:48,516 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:14:48,816 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:14:49,170 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:14:49,613 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:14:50,200 WARN L193 SmtUtils]: Spent 511.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:14:50,655 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:51,291 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 15:14:51,571 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:14:51,851 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 15:14:52,144 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 15:14:52,380 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:14:52,666 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 15:14:52,962 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 15:14:52,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:14:52,992 INFO L93 Difference]: Finished difference Result 48120 states and 97108 transitions. [2021-01-20 15:14:52,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:14:52,993 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:14:52,994 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:14:53,032 INFO L225 Difference]: With dead ends: 48120 [2021-01-20 15:14:53,032 INFO L226 Difference]: Without dead ends: 48120 [2021-01-20 15:14:53,033 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=490, Invalid=1490, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:14:53,033 INFO L78 Accepts]: Start accepts. Automaton has 48120 states. Word has length 90 [2021-01-20 15:14:53,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:14:53,033 INFO L481 AbstractCegarLoop]: Abstraction has 48120 states. [2021-01-20 15:14:53,033 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:53,033 INFO L276 IsEmpty]: Start isEmpty. Operand 48120 states. [2021-01-20 15:14:53,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:14:53,073 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:14:53,073 INFO L504 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] [2021-01-20 15:14:53,074 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable58 [2021-01-20 15:14:53,074 INFO L429 AbstractCegarLoop]: === Iteration 60 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:14:53,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:14:53,074 INFO L82 PathProgramCache]: Analyzing trace with hash -367275633, now seen corresponding path program 57 times [2021-01-20 15:14:53,074 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:14:53,074 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951158333] [2021-01-20 15:14:53,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:14:53,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:14:53,856 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:14:54,036 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:14:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:14:54,315 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951158333] [2021-01-20 15:14:54,315 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:14:54,315 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:14:54,315 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [706939463] [2021-01-20 15:14:54,315 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:14:54,315 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:14:54,316 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:14:54,316 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=487, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:14:54,316 INFO L87 Difference]: Start difference. First operand 48120 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:14:55,011 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:14:55,306 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:14:55,600 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:14:55,903 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:14:56,220 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:14:57,143 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:14:57,492 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:14:58,055 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:14:58,493 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:14:58,956 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:14:59,744 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2021-01-20 15:15:00,062 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:15:00,383 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2021-01-20 15:15:00,723 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2021-01-20 15:15:01,020 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:15:01,334 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 65 [2021-01-20 15:15:01,667 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2021-01-20 15:15:01,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:15:01,688 INFO L93 Difference]: Finished difference Result 53544 states and 108236 transitions. [2021-01-20 15:15:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:15:01,690 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:15:01,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:15:01,736 INFO L225 Difference]: With dead ends: 53544 [2021-01-20 15:15:01,736 INFO L226 Difference]: Without dead ends: 53544 [2021-01-20 15:15:01,737 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 205 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=505, Invalid=1475, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:15:01,737 INFO L78 Accepts]: Start accepts. Automaton has 53544 states. Word has length 90 [2021-01-20 15:15:01,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:15:01,737 INFO L481 AbstractCegarLoop]: Abstraction has 53544 states. [2021-01-20 15:15:01,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:01,737 INFO L276 IsEmpty]: Start isEmpty. Operand 53544 states. [2021-01-20 15:15:01,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:15:01,785 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:15:01,785 INFO L504 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] [2021-01-20 15:15:01,785 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable59 [2021-01-20 15:15:01,785 INFO L429 AbstractCegarLoop]: === Iteration 61 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:15:01,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:15:01,785 INFO L82 PathProgramCache]: Analyzing trace with hash -1948928771, now seen corresponding path program 58 times [2021-01-20 15:15:01,785 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:15:01,786 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231431487] [2021-01-20 15:15:01,786 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:15:01,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:15:02,541 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:15:02,722 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:15:03,023 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:15:03,023 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231431487] [2021-01-20 15:15:03,023 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:15:03,023 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:15:03,023 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [567937144] [2021-01-20 15:15:03,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:15:03,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:15:03,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:15:03,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:15:03,026 INFO L87 Difference]: Start difference. First operand 53544 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:03,775 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:15:04,081 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:15:04,374 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:15:04,684 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:15:05,011 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:15:05,585 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:15:06,132 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:15:06,605 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:15:07,098 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:15:08,073 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:15:08,937 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:15:09,381 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:15:09,841 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:15:10,284 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:15:10,736 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:15:10,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:15:10,757 INFO L93 Difference]: Finished difference Result 57350 states and 116162 transitions. [2021-01-20 15:15:10,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2021-01-20 15:15:10,759 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:15:10,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:15:10,808 INFO L225 Difference]: With dead ends: 57350 [2021-01-20 15:15:10,808 INFO L226 Difference]: Without dead ends: 57350 [2021-01-20 15:15:10,809 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 6.6s TimeCoverageRelationStatistics Valid=510, Invalid=1296, Unknown=0, NotChecked=0, Total=1806 [2021-01-20 15:15:10,809 INFO L78 Accepts]: Start accepts. Automaton has 57350 states. Word has length 90 [2021-01-20 15:15:10,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:15:10,809 INFO L481 AbstractCegarLoop]: Abstraction has 57350 states. [2021-01-20 15:15:10,809 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:10,809 INFO L276 IsEmpty]: Start isEmpty. Operand 57350 states. [2021-01-20 15:15:10,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:15:10,860 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:15:10,860 INFO L504 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] [2021-01-20 15:15:10,861 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable60 [2021-01-20 15:15:10,861 INFO L429 AbstractCegarLoop]: === Iteration 62 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:15:10,861 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:15:10,861 INFO L82 PathProgramCache]: Analyzing trace with hash -1536856245, now seen corresponding path program 59 times [2021-01-20 15:15:10,861 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:15:10,861 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [614822619] [2021-01-20 15:15:10,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:15:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:15:11,602 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:15:11,745 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:15:11,910 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:15:12,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:15:12,354 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [614822619] [2021-01-20 15:15:12,354 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:15:12,354 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:15:12,354 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1199641839] [2021-01-20 15:15:12,355 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:15:12,355 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:15:12,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:15:12,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:15:12,355 INFO L87 Difference]: Start difference. First operand 57350 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:13,123 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:15:13,401 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:15:13,685 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:15:13,983 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:15:14,302 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:15:14,698 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:15:15,220 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:15:15,686 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:15:16,181 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 75 [2021-01-20 15:15:17,054 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:15:17,497 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:15:18,417 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 77 [2021-01-20 15:15:18,873 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 80 [2021-01-20 15:15:19,504 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 83 [2021-01-20 15:15:19,968 WARN L193 SmtUtils]: Spent 393.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 81 [2021-01-20 15:15:20,439 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:15:20,462 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:15:20,462 INFO L93 Difference]: Finished difference Result 57398 states and 116207 transitions. [2021-01-20 15:15:20,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2021-01-20 15:15:20,463 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:15:20,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:15:20,501 INFO L225 Difference]: With dead ends: 57398 [2021-01-20 15:15:20,502 INFO L226 Difference]: Without dead ends: 57398 [2021-01-20 15:15:20,502 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 7.3s TimeCoverageRelationStatistics Valid=518, Invalid=1374, Unknown=0, NotChecked=0, Total=1892 [2021-01-20 15:15:20,502 INFO L78 Accepts]: Start accepts. Automaton has 57398 states. Word has length 90 [2021-01-20 15:15:20,502 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:15:20,502 INFO L481 AbstractCegarLoop]: Abstraction has 57398 states. [2021-01-20 15:15:20,502 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:20,502 INFO L276 IsEmpty]: Start isEmpty. Operand 57398 states. [2021-01-20 15:15:20,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:15:20,544 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:15:20,544 INFO L504 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] [2021-01-20 15:15:20,544 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable61 [2021-01-20 15:15:20,544 INFO L429 AbstractCegarLoop]: === Iteration 63 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:15:20,544 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:15:20,544 INFO L82 PathProgramCache]: Analyzing trace with hash -1735474221, now seen corresponding path program 60 times [2021-01-20 15:15:20,544 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:15:20,544 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1896795307] [2021-01-20 15:15:20,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:15:20,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:15:21,396 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:15:21,566 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:15:21,835 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:15:21,835 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1896795307] [2021-01-20 15:15:21,835 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:15:21,835 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:15:21,835 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [126064666] [2021-01-20 15:15:21,836 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:15:21,836 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:15:21,837 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:15:21,837 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:15:21,838 INFO L87 Difference]: Start difference. First operand 57398 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:22,590 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:15:22,874 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:15:23,164 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:15:23,469 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:15:23,789 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:15:24,203 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:15:24,748 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 64 [2021-01-20 15:15:25,565 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:15:25,988 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:15:26,578 WARN L193 SmtUtils]: Spent 501.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:15:27,463 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 69 [2021-01-20 15:15:27,868 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 71 [2021-01-20 15:15:28,264 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 74 [2021-01-20 15:15:28,679 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 77 [2021-01-20 15:15:29,031 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:15:29,414 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 75 [2021-01-20 15:15:29,810 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 72 [2021-01-20 15:15:29,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:15:29,839 INFO L93 Difference]: Finished difference Result 57446 states and 116252 transitions. [2021-01-20 15:15:29,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:15:29,840 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:15:29,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:15:29,923 INFO L225 Difference]: With dead ends: 57446 [2021-01-20 15:15:29,924 INFO L226 Difference]: Without dead ends: 57446 [2021-01-20 15:15:29,924 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 195 ImplicationChecksByTransitivity, 7.0s TimeCoverageRelationStatistics Valid=535, Invalid=1445, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:15:29,924 INFO L78 Accepts]: Start accepts. Automaton has 57446 states. Word has length 90 [2021-01-20 15:15:29,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:15:29,924 INFO L481 AbstractCegarLoop]: Abstraction has 57446 states. [2021-01-20 15:15:29,924 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:29,925 INFO L276 IsEmpty]: Start isEmpty. Operand 57446 states. [2021-01-20 15:15:29,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:15:29,989 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:15:29,989 INFO L504 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] [2021-01-20 15:15:29,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable62 [2021-01-20 15:15:29,991 INFO L429 AbstractCegarLoop]: === Iteration 64 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:15:29,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:15:29,991 INFO L82 PathProgramCache]: Analyzing trace with hash 1036786925, now seen corresponding path program 61 times [2021-01-20 15:15:29,992 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:15:29,992 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204293240] [2021-01-20 15:15:29,992 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:15:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:15:30,869 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:15:31,053 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:15:31,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:15:31,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204293240] [2021-01-20 15:15:31,334 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:15:31,334 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:15:31,334 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97296879] [2021-01-20 15:15:31,335 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:15:31,335 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:15:31,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:15:31,336 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:15:31,336 INFO L87 Difference]: Start difference. First operand 57446 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:32,123 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:15:32,432 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:15:32,733 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:15:33,181 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:15:33,509 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2021-01-20 15:15:33,927 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 59 [2021-01-20 15:15:34,929 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:15:35,352 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 67 [2021-01-20 15:15:35,803 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 73 [2021-01-20 15:15:36,277 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 78 [2021-01-20 15:15:37,170 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 64 [2021-01-20 15:15:37,549 WARN L193 SmtUtils]: Spent 295.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 66 [2021-01-20 15:15:37,919 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 69 [2021-01-20 15:15:38,315 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 72 [2021-01-20 15:15:38,645 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2021-01-20 15:15:39,026 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 70 [2021-01-20 15:15:39,428 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 67 [2021-01-20 15:15:39,460 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:15:39,460 INFO L93 Difference]: Finished difference Result 57494 states and 116297 transitions. [2021-01-20 15:15:39,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:15:39,462 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:15:39,462 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:15:39,748 INFO L225 Difference]: With dead ends: 57494 [2021-01-20 15:15:39,748 INFO L226 Difference]: Without dead ends: 57494 [2021-01-20 15:15:39,749 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 201 ImplicationChecksByTransitivity, 6.8s TimeCoverageRelationStatistics Valid=520, Invalid=1460, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:15:39,749 INFO L78 Accepts]: Start accepts. Automaton has 57494 states. Word has length 90 [2021-01-20 15:15:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:15:39,749 INFO L481 AbstractCegarLoop]: Abstraction has 57494 states. [2021-01-20 15:15:39,749 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:39,750 INFO L276 IsEmpty]: Start isEmpty. Operand 57494 states. [2021-01-20 15:15:39,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:15:39,812 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:15:39,813 INFO L504 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] [2021-01-20 15:15:39,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable63 [2021-01-20 15:15:39,813 INFO L429 AbstractCegarLoop]: === Iteration 65 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:15:39,826 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:15:39,826 INFO L82 PathProgramCache]: Analyzing trace with hash -38575023, now seen corresponding path program 62 times [2021-01-20 15:15:39,826 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:15:39,826 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1965971505] [2021-01-20 15:15:39,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:15:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:15:40,738 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 41 DAG size of output: 23 [2021-01-20 15:15:40,942 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 30 [2021-01-20 15:15:41,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:15:41,264 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1965971505] [2021-01-20 15:15:41,264 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:15:41,264 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:15:41,265 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859037673] [2021-01-20 15:15:41,265 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:15:41,265 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:15:41,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:15:41,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:15:41,267 INFO L87 Difference]: Start difference. First operand 57494 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:42,053 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 37 DAG size of output: 35 [2021-01-20 15:15:42,362 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 40 [2021-01-20 15:15:42,657 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2021-01-20 15:15:42,959 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 49 [2021-01-20 15:15:43,750 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:15:44,028 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:15:44,382 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 62 [2021-01-20 15:15:44,830 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:15:45,293 WARN L193 SmtUtils]: Spent 373.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:15:45,782 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:15:46,747 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 54 [2021-01-20 15:15:47,058 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 56 [2021-01-20 15:15:47,355 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 59 [2021-01-20 15:15:47,675 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 62 [2021-01-20 15:15:47,933 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2021-01-20 15:15:48,243 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 60 [2021-01-20 15:15:48,572 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 57 [2021-01-20 15:15:48,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:15:48,603 INFO L93 Difference]: Finished difference Result 57750 states and 116538 transitions. [2021-01-20 15:15:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:15:48,605 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:15:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:15:48,649 INFO L225 Difference]: With dead ends: 57750 [2021-01-20 15:15:48,649 INFO L226 Difference]: Without dead ends: 57750 [2021-01-20 15:15:48,649 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 207 ImplicationChecksByTransitivity, 6.1s TimeCoverageRelationStatistics Valid=490, Invalid=1490, Unknown=0, NotChecked=0, Total=1980 [2021-01-20 15:15:48,650 INFO L78 Accepts]: Start accepts. Automaton has 57750 states. Word has length 90 [2021-01-20 15:15:48,650 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:15:48,650 INFO L481 AbstractCegarLoop]: Abstraction has 57750 states. [2021-01-20 15:15:48,650 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:48,650 INFO L276 IsEmpty]: Start isEmpty. Operand 57750 states. [2021-01-20 15:15:48,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:15:48,697 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:15:48,698 INFO L504 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] [2021-01-20 15:15:48,698 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable64 [2021-01-20 15:15:48,698 INFO L429 AbstractCegarLoop]: === Iteration 66 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:15:48,698 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:15:48,698 INFO L82 PathProgramCache]: Analyzing trace with hash -1313638525, now seen corresponding path program 63 times [2021-01-20 15:15:48,698 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:15:48,699 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655672228] [2021-01-20 15:15:48,699 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:15:48,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:15:49,849 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:15:50,063 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:15:50,366 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:15:50,366 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655672228] [2021-01-20 15:15:50,366 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:15:50,366 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:15:50,366 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303504217] [2021-01-20 15:15:50,367 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:15:50,367 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:15:50,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:15:50,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:15:50,367 INFO L87 Difference]: Start difference. First operand 57750 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:50,938 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:15:51,120 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:15:51,417 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:15:51,712 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:15:52,036 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:15:52,915 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:15:53,240 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:15:53,629 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:15:54,032 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:15:54,475 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:15:54,911 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:15:55,403 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:15:56,326 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:15:56,629 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:15:56,921 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 15:15:57,226 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 15:15:57,490 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:15:57,772 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:15:58,099 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:15:58,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:15:58,122 INFO L93 Difference]: Finished difference Result 58109 states and 117177 transitions. [2021-01-20 15:15:58,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:15:58,123 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:15:58,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:15:58,173 INFO L225 Difference]: With dead ends: 58109 [2021-01-20 15:15:58,173 INFO L226 Difference]: Without dead ends: 58109 [2021-01-20 15:15:58,173 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=522, Invalid=1548, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:15:58,173 INFO L78 Accepts]: Start accepts. Automaton has 58109 states. Word has length 90 [2021-01-20 15:15:58,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:15:58,174 INFO L481 AbstractCegarLoop]: Abstraction has 58109 states. [2021-01-20 15:15:58,174 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:15:58,174 INFO L276 IsEmpty]: Start isEmpty. Operand 58109 states. [2021-01-20 15:15:58,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:15:58,351 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:15:58,351 INFO L504 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] [2021-01-20 15:15:58,351 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable65 [2021-01-20 15:15:58,354 INFO L429 AbstractCegarLoop]: === Iteration 67 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:15:58,354 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:15:58,354 INFO L82 PathProgramCache]: Analyzing trace with hash 972700409, now seen corresponding path program 64 times [2021-01-20 15:15:58,355 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:15:58,355 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1652812771] [2021-01-20 15:15:58,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:15:58,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:15:59,489 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:15:59,705 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:16:00,024 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:16:00,024 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1652812771] [2021-01-20 15:16:00,024 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:16:00,024 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:16:00,024 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [75916723] [2021-01-20 15:16:00,025 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:16:00,025 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:16:00,025 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:16:00,026 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:16:00,026 INFO L87 Difference]: Start difference. First operand 58109 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:00,638 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:16:00,825 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:16:01,137 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:16:01,441 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:16:01,766 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:16:02,562 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:16:02,903 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:16:03,309 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:16:03,737 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 15:16:04,401 WARN L193 SmtUtils]: Spent 567.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 15:16:04,810 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:16:05,306 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:16:06,309 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:16:06,652 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:16:06,967 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 15:16:07,298 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 15:16:07,580 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:16:07,878 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:16:08,202 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:16:08,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:16:08,231 INFO L93 Difference]: Finished difference Result 58500 states and 117868 transitions. [2021-01-20 15:16:08,233 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:16:08,233 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:16:08,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:16:08,295 INFO L225 Difference]: With dead ends: 58500 [2021-01-20 15:16:08,295 INFO L226 Difference]: Without dead ends: 58500 [2021-01-20 15:16:08,295 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 217 ImplicationChecksByTransitivity, 7.4s TimeCoverageRelationStatistics Valid=523, Invalid=1547, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:16:08,295 INFO L78 Accepts]: Start accepts. Automaton has 58500 states. Word has length 90 [2021-01-20 15:16:08,295 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:16:08,296 INFO L481 AbstractCegarLoop]: Abstraction has 58500 states. [2021-01-20 15:16:08,296 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:08,296 INFO L276 IsEmpty]: Start isEmpty. Operand 58500 states. [2021-01-20 15:16:08,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:16:08,362 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:16:08,362 INFO L504 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] [2021-01-20 15:16:08,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable66 [2021-01-20 15:16:08,363 INFO L429 AbstractCegarLoop]: === Iteration 68 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:16:08,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:16:08,363 INFO L82 PathProgramCache]: Analyzing trace with hash -1760109113, now seen corresponding path program 65 times [2021-01-20 15:16:08,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:16:08,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1159737888] [2021-01-20 15:16:08,364 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:16:08,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:16:09,646 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:16:10,102 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:16:10,407 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:16:10,407 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1159737888] [2021-01-20 15:16:10,407 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:16:10,407 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:16:10,407 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1111046712] [2021-01-20 15:16:10,408 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:16:10,408 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:16:10,408 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:16:10,408 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=488, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:16:10,408 INFO L87 Difference]: Start difference. First operand 58500 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:11,022 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:16:11,212 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:16:11,523 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:16:11,832 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:16:12,162 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:16:12,928 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:16:13,264 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2021-01-20 15:16:13,657 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:16:14,091 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 15:16:14,539 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 67 [2021-01-20 15:16:15,049 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 72 [2021-01-20 15:16:15,493 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 71 [2021-01-20 15:16:16,115 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 76 [2021-01-20 15:16:17,005 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2021-01-20 15:16:17,348 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2021-01-20 15:16:17,673 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2021-01-20 15:16:18,017 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 63 [2021-01-20 15:16:18,298 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2021-01-20 15:16:18,628 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 61 [2021-01-20 15:16:18,978 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2021-01-20 15:16:19,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:16:19,011 INFO L93 Difference]: Finished difference Result 58511 states and 117878 transitions. [2021-01-20 15:16:19,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-01-20 15:16:19,013 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:16:19,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:16:19,064 INFO L225 Difference]: With dead ends: 58511 [2021-01-20 15:16:19,064 INFO L226 Difference]: Without dead ends: 58511 [2021-01-20 15:16:19,064 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 228 ImplicationChecksByTransitivity, 8.2s TimeCoverageRelationStatistics Valid=555, Invalid=1607, Unknown=0, NotChecked=0, Total=2162 [2021-01-20 15:16:19,064 INFO L78 Accepts]: Start accepts. Automaton has 58511 states. Word has length 90 [2021-01-20 15:16:19,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:16:19,065 INFO L481 AbstractCegarLoop]: Abstraction has 58511 states. [2021-01-20 15:16:19,065 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:19,065 INFO L276 IsEmpty]: Start isEmpty. Operand 58511 states. [2021-01-20 15:16:19,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:16:19,114 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:16:19,114 INFO L504 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] [2021-01-20 15:16:19,114 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable67 [2021-01-20 15:16:19,114 INFO L429 AbstractCegarLoop]: === Iteration 69 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:16:19,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:16:19,114 INFO L82 PathProgramCache]: Analyzing trace with hash -2130056329, now seen corresponding path program 66 times [2021-01-20 15:16:19,114 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:16:19,114 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [475922424] [2021-01-20 15:16:19,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:16:19,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:16:20,235 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:16:20,449 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:16:20,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:16:20,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [475922424] [2021-01-20 15:16:20,896 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:16:20,896 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:16:20,896 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019475312] [2021-01-20 15:16:20,896 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:16:20,896 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:16:20,897 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:16:20,897 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:16:20,897 INFO L87 Difference]: Start difference. First operand 58511 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:21,583 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:16:21,770 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:16:22,079 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:16:22,373 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:16:22,695 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:16:23,042 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:16:23,481 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:16:23,923 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 15:16:24,401 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:16:24,796 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:16:25,267 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 15:16:26,185 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:16:26,745 WARN L193 SmtUtils]: Spent 470.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 15:16:27,713 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:16:28,187 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 15:16:28,628 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:16:29,128 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 15:16:29,589 WARN L193 SmtUtils]: Spent 396.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 15:16:30,102 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 15:16:30,553 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:16:31,046 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 15:16:31,615 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:16:32,095 WARN L193 SmtUtils]: Spent 418.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:16:32,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:16:32,130 INFO L93 Difference]: Finished difference Result 61614 states and 124087 transitions. [2021-01-20 15:16:32,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-01-20 15:16:32,131 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:16:32,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:16:32,174 INFO L225 Difference]: With dead ends: 61614 [2021-01-20 15:16:32,174 INFO L226 Difference]: Without dead ends: 61614 [2021-01-20 15:16:32,175 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=747, Invalid=1703, Unknown=0, NotChecked=0, Total=2450 [2021-01-20 15:16:32,175 INFO L78 Accepts]: Start accepts. Automaton has 61614 states. Word has length 90 [2021-01-20 15:16:32,175 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:16:32,175 INFO L481 AbstractCegarLoop]: Abstraction has 61614 states. [2021-01-20 15:16:32,175 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:32,175 INFO L276 IsEmpty]: Start isEmpty. Operand 61614 states. [2021-01-20 15:16:32,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:16:32,220 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:16:32,220 INFO L504 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] [2021-01-20 15:16:32,221 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable68 [2021-01-20 15:16:32,221 INFO L429 AbstractCegarLoop]: === Iteration 70 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:16:32,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:16:32,221 INFO L82 PathProgramCache]: Analyzing trace with hash 664707381, now seen corresponding path program 67 times [2021-01-20 15:16:32,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:16:32,221 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219484110] [2021-01-20 15:16:32,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:16:32,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:16:33,347 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:16:33,535 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:16:33,754 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:16:34,026 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:16:34,026 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219484110] [2021-01-20 15:16:34,026 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:16:34,026 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:16:34,026 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405100189] [2021-01-20 15:16:34,027 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:16:34,027 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:16:34,027 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:16:34,027 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:16:34,027 INFO L87 Difference]: Start difference. First operand 61614 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:34,767 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:16:34,956 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:16:35,286 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:16:35,611 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:16:35,948 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:16:36,397 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:16:36,924 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:16:37,401 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 15:16:37,923 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:16:38,360 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:16:38,907 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 15:16:40,093 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:16:40,511 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:16:40,974 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:16:42,249 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:16:42,719 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 77 [2021-01-20 15:16:43,168 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:16:43,664 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 15:16:44,130 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 15:16:44,650 WARN L193 SmtUtils]: Spent 448.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 15:16:45,108 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:16:45,620 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 15:16:46,210 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:16:46,694 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 78 [2021-01-20 15:16:46,728 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:16:46,728 INFO L93 Difference]: Finished difference Result 61662 states and 124132 transitions. [2021-01-20 15:16:46,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-01-20 15:16:46,730 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:16:46,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:16:46,774 INFO L225 Difference]: With dead ends: 61662 [2021-01-20 15:16:46,774 INFO L226 Difference]: Without dead ends: 61662 [2021-01-20 15:16:46,774 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 11.1s TimeCoverageRelationStatistics Valid=748, Invalid=1802, Unknown=0, NotChecked=0, Total=2550 [2021-01-20 15:16:46,774 INFO L78 Accepts]: Start accepts. Automaton has 61662 states. Word has length 90 [2021-01-20 15:16:46,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:16:46,775 INFO L481 AbstractCegarLoop]: Abstraction has 61662 states. [2021-01-20 15:16:46,775 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:46,775 INFO L276 IsEmpty]: Start isEmpty. Operand 61662 states. [2021-01-20 15:16:46,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:16:46,819 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:16:46,819 INFO L504 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] [2021-01-20 15:16:46,819 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable69 [2021-01-20 15:16:46,819 INFO L429 AbstractCegarLoop]: === Iteration 71 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:16:46,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:16:46,819 INFO L82 PathProgramCache]: Analyzing trace with hash 780021831, now seen corresponding path program 68 times [2021-01-20 15:16:46,820 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:16:46,820 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [372126839] [2021-01-20 15:16:46,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:16:46,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:16:48,056 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:16:48,268 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:16:48,549 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:16:48,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [372126839] [2021-01-20 15:16:48,550 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:16:48,550 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:16:48,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013805863] [2021-01-20 15:16:48,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:16:48,550 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:16:48,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:16:48,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:16:48,551 INFO L87 Difference]: Start difference. First operand 61662 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:49,143 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:16:49,333 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:16:49,642 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:16:49,938 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:16:50,271 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:16:50,726 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:16:51,193 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:16:51,656 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 65 [2021-01-20 15:16:52,152 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:16:53,137 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:16:53,573 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:16:54,040 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:16:54,549 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:16:55,681 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:16:56,096 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:16:56,518 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 78 [2021-01-20 15:16:56,905 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:16:57,349 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:16:57,818 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:16:57,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:16:57,842 INFO L93 Difference]: Finished difference Result 61658 states and 124128 transitions. [2021-01-20 15:16:57,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:16:57,844 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:16:57,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:16:57,884 INFO L225 Difference]: With dead ends: 61658 [2021-01-20 15:16:57,884 INFO L226 Difference]: Without dead ends: 61658 [2021-01-20 15:16:57,884 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=567, Invalid=1503, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:16:57,884 INFO L78 Accepts]: Start accepts. Automaton has 61658 states. Word has length 90 [2021-01-20 15:16:57,885 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:16:57,885 INFO L481 AbstractCegarLoop]: Abstraction has 61658 states. [2021-01-20 15:16:57,885 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:16:57,885 INFO L276 IsEmpty]: Start isEmpty. Operand 61658 states. [2021-01-20 15:16:57,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:16:57,928 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:16:57,928 INFO L504 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] [2021-01-20 15:16:57,928 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable70 [2021-01-20 15:16:57,928 INFO L429 AbstractCegarLoop]: === Iteration 72 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:16:57,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:16:57,928 INFO L82 PathProgramCache]: Analyzing trace with hash 26973889, now seen corresponding path program 69 times [2021-01-20 15:16:57,928 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:16:57,929 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2124784721] [2021-01-20 15:16:57,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:16:57,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:16:58,655 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 21 DAG size of output: 19 [2021-01-20 15:16:59,129 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:16:59,380 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:16:59,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:16:59,712 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2124784721] [2021-01-20 15:16:59,713 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:16:59,713 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:16:59,713 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994609390] [2021-01-20 15:16:59,713 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:16:59,713 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:16:59,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:16:59,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:16:59,714 INFO L87 Difference]: Start difference. First operand 61658 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:00,339 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:17:00,529 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:17:00,838 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:17:01,137 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:17:01,465 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:17:01,823 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:17:02,288 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:17:02,742 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:17:03,237 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 15:17:03,667 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 67 [2021-01-20 15:17:04,177 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 74 [2021-01-20 15:17:05,215 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 70 [2021-01-20 15:17:05,727 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 78 [2021-01-20 15:17:06,830 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 69 [2021-01-20 15:17:07,291 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 76 [2021-01-20 15:17:07,718 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 72 [2021-01-20 15:17:08,259 WARN L193 SmtUtils]: Spent 479.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 80 [2021-01-20 15:17:08,680 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 75 [2021-01-20 15:17:09,156 WARN L193 SmtUtils]: Spent 411.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 83 [2021-01-20 15:17:09,569 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 73 [2021-01-20 15:17:10,023 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 81 [2021-01-20 15:17:10,451 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:17:10,929 WARN L193 SmtUtils]: Spent 413.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:17:10,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:17:10,964 INFO L93 Difference]: Finished difference Result 64985 states and 130868 transitions. [2021-01-20 15:17:10,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2021-01-20 15:17:10,966 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:17:10,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:17:11,006 INFO L225 Difference]: With dead ends: 64985 [2021-01-20 15:17:11,006 INFO L226 Difference]: Without dead ends: 64985 [2021-01-20 15:17:11,006 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 10.4s TimeCoverageRelationStatistics Valid=754, Invalid=1696, Unknown=0, NotChecked=0, Total=2450 [2021-01-20 15:17:11,006 INFO L78 Accepts]: Start accepts. Automaton has 64985 states. Word has length 90 [2021-01-20 15:17:11,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:17:11,006 INFO L481 AbstractCegarLoop]: Abstraction has 64985 states. [2021-01-20 15:17:11,006 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:11,007 INFO L276 IsEmpty]: Start isEmpty. Operand 64985 states. [2021-01-20 15:17:11,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:17:11,151 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:17:11,151 INFO L504 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] [2021-01-20 15:17:11,151 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable71 [2021-01-20 15:17:11,151 INFO L429 AbstractCegarLoop]: === Iteration 73 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:17:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:17:11,152 INFO L82 PathProgramCache]: Analyzing trace with hash -1894529055, now seen corresponding path program 70 times [2021-01-20 15:17:11,152 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:17:11,152 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664526837] [2021-01-20 15:17:11,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:17:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:17:12,305 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:17:12,497 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:17:12,723 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:17:13,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:17:13,011 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664526837] [2021-01-20 15:17:13,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:17:13,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:17:13,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2094980641] [2021-01-20 15:17:13,011 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:17:13,011 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:17:13,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:17:13,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:17:13,012 INFO L87 Difference]: Start difference. First operand 64985 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:13,736 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:17:13,934 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:17:14,284 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:17:14,611 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:17:14,959 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:17:15,380 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:17:15,924 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:17:16,431 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:17:16,979 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 70 [2021-01-20 15:17:17,390 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:17:17,944 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 75 [2021-01-20 15:17:19,221 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 15:17:19,639 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:17:20,107 WARN L193 SmtUtils]: Spent 380.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:17:21,388 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:17:21,835 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:17:22,286 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:17:22,823 WARN L193 SmtUtils]: Spent 457.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 80 [2021-01-20 15:17:23,377 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:17:23,903 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 83 [2021-01-20 15:17:24,356 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 15:17:24,861 WARN L193 SmtUtils]: Spent 442.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 81 [2021-01-20 15:17:25,330 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 15:17:25,819 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 78 [2021-01-20 15:17:25,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:17:25,855 INFO L93 Difference]: Finished difference Result 65033 states and 130913 transitions. [2021-01-20 15:17:25,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2021-01-20 15:17:25,857 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:17:25,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:17:25,899 INFO L225 Difference]: With dead ends: 65033 [2021-01-20 15:17:25,899 INFO L226 Difference]: Without dead ends: 65033 [2021-01-20 15:17:25,900 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 248 ImplicationChecksByTransitivity, 11.2s TimeCoverageRelationStatistics Valid=749, Invalid=1801, Unknown=0, NotChecked=0, Total=2550 [2021-01-20 15:17:25,900 INFO L78 Accepts]: Start accepts. Automaton has 65033 states. Word has length 90 [2021-01-20 15:17:25,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:17:25,900 INFO L481 AbstractCegarLoop]: Abstraction has 65033 states. [2021-01-20 15:17:25,900 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:25,900 INFO L276 IsEmpty]: Start isEmpty. Operand 65033 states. [2021-01-20 15:17:26,061 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:17:26,061 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:17:26,062 INFO L504 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] [2021-01-20 15:17:26,062 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable72 [2021-01-20 15:17:26,062 INFO L429 AbstractCegarLoop]: === Iteration 74 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:17:26,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:17:26,063 INFO L82 PathProgramCache]: Analyzing trace with hash 507124329, now seen corresponding path program 71 times [2021-01-20 15:17:26,063 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:17:26,063 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782226633] [2021-01-20 15:17:26,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:17:26,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:17:27,407 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:17:27,665 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:17:27,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:17:27,993 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782226633] [2021-01-20 15:17:27,993 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:17:27,993 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:17:27,993 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785837974] [2021-01-20 15:17:27,994 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:17:27,994 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:17:27,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:17:27,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:17:27,995 INFO L87 Difference]: Start difference. First operand 65033 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:28,764 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:17:28,970 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:17:29,346 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:17:29,695 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:17:30,100 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:17:30,484 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:17:31,009 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:17:31,484 WARN L193 SmtUtils]: Spent 305.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 63 [2021-01-20 15:17:31,987 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:17:33,052 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 15:17:33,490 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 70 [2021-01-20 15:17:33,974 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 73 [2021-01-20 15:17:34,505 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 77 [2021-01-20 15:17:35,648 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 70 [2021-01-20 15:17:36,093 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:17:36,557 WARN L193 SmtUtils]: Spent 391.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 76 [2021-01-20 15:17:37,056 WARN L193 SmtUtils]: Spent 430.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 66 [2021-01-20 15:17:37,495 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 15:17:37,959 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 15:17:37,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:17:37,984 INFO L93 Difference]: Finished difference Result 65081 states and 130958 transitions. [2021-01-20 15:17:37,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:17:37,986 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:17:37,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:17:38,052 INFO L225 Difference]: With dead ends: 65081 [2021-01-20 15:17:38,053 INFO L226 Difference]: Without dead ends: 65081 [2021-01-20 15:17:38,053 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 202 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=568, Invalid=1502, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:17:38,053 INFO L78 Accepts]: Start accepts. Automaton has 65081 states. Word has length 90 [2021-01-20 15:17:38,053 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:17:38,054 INFO L481 AbstractCegarLoop]: Abstraction has 65081 states. [2021-01-20 15:17:38,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:38,054 INFO L276 IsEmpty]: Start isEmpty. Operand 65081 states. [2021-01-20 15:17:38,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:17:38,133 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:17:38,133 INFO L504 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] [2021-01-20 15:17:38,133 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable73 [2021-01-20 15:17:38,133 INFO L429 AbstractCegarLoop]: === Iteration 75 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:17:38,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:17:38,134 INFO L82 PathProgramCache]: Analyzing trace with hash -2078134593, now seen corresponding path program 72 times [2021-01-20 15:17:38,134 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:17:38,134 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126793322] [2021-01-20 15:17:38,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:17:38,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:17:39,375 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 23 [2021-01-20 15:17:39,685 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 24 [2021-01-20 15:17:39,943 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 31 [2021-01-20 15:17:40,284 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:17:40,285 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126793322] [2021-01-20 15:17:40,285 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:17:40,285 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:17:40,285 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038611885] [2021-01-20 15:17:40,285 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:17:40,286 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:17:40,286 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:17:40,286 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:17:40,286 INFO L87 Difference]: Start difference. First operand 65081 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:41,050 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:17:41,269 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:17:41,641 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:17:41,970 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:17:42,324 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:17:42,709 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:17:43,237 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:17:44,398 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:17:44,823 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 68 [2021-01-20 15:17:45,316 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 73 [2021-01-20 15:17:45,796 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:17:46,343 WARN L193 SmtUtils]: Spent 432.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:17:47,502 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 15:17:47,933 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 15:17:48,342 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 15:17:48,779 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 15:17:49,137 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:17:49,548 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 15:17:50,059 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 15:17:50,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:17:50,095 INFO L93 Difference]: Finished difference Result 65114 states and 130989 transitions. [2021-01-20 15:17:50,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:17:50,097 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:17:50,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:17:50,206 INFO L225 Difference]: With dead ends: 65114 [2021-01-20 15:17:50,206 INFO L226 Difference]: Without dead ends: 65114 [2021-01-20 15:17:50,206 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 8.6s TimeCoverageRelationStatistics Valid=552, Invalid=1518, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:17:50,206 INFO L78 Accepts]: Start accepts. Automaton has 65114 states. Word has length 90 [2021-01-20 15:17:50,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:17:50,207 INFO L481 AbstractCegarLoop]: Abstraction has 65114 states. [2021-01-20 15:17:50,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:50,207 INFO L276 IsEmpty]: Start isEmpty. Operand 65114 states. [2021-01-20 15:17:50,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:17:50,284 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:17:50,284 INFO L504 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] [2021-01-20 15:17:50,284 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable74 [2021-01-20 15:17:50,284 INFO L429 AbstractCegarLoop]: === Iteration 76 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:17:50,285 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:17:50,285 INFO L82 PathProgramCache]: Analyzing trace with hash 208204341, now seen corresponding path program 73 times [2021-01-20 15:17:50,285 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:17:50,285 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057064189] [2021-01-20 15:17:50,285 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:17:50,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:17:51,743 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:17:52,015 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:17:52,397 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:17:52,398 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057064189] [2021-01-20 15:17:52,398 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:17:52,398 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:17:52,398 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631938693] [2021-01-20 15:17:52,398 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:17:52,399 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:17:52,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:17:52,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:17:52,400 INFO L87 Difference]: Start difference. First operand 65114 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:17:53,128 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:17:53,334 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:17:53,685 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:17:54,009 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:17:54,361 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:17:54,722 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:17:55,181 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2021-01-20 15:17:56,133 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:17:56,587 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 66 [2021-01-20 15:17:57,045 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 73 [2021-01-20 15:17:57,472 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:17:58,008 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 78 [2021-01-20 15:17:59,072 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 63 [2021-01-20 15:17:59,491 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 65 [2021-01-20 15:17:59,898 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 68 [2021-01-20 15:18:00,320 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 71 [2021-01-20 15:18:00,689 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2021-01-20 15:18:01,213 WARN L193 SmtUtils]: Spent 447.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 15:18:01,652 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 15:18:01,687 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:18:01,687 INFO L93 Difference]: Finished difference Result 65125 states and 130999 transitions. [2021-01-20 15:18:01,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2021-01-20 15:18:01,689 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:18:01,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:18:01,776 INFO L225 Difference]: With dead ends: 65125 [2021-01-20 15:18:01,777 INFO L226 Difference]: Without dead ends: 65125 [2021-01-20 15:18:01,777 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 8.7s TimeCoverageRelationStatistics Valid=553, Invalid=1517, Unknown=0, NotChecked=0, Total=2070 [2021-01-20 15:18:01,777 INFO L78 Accepts]: Start accepts. Automaton has 65125 states. Word has length 90 [2021-01-20 15:18:01,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:18:01,778 INFO L481 AbstractCegarLoop]: Abstraction has 65125 states. [2021-01-20 15:18:01,778 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:01,778 INFO L276 IsEmpty]: Start isEmpty. Operand 65125 states. [2021-01-20 15:18:01,852 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:18:01,852 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:18:01,853 INFO L504 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] [2021-01-20 15:18:01,853 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable75 [2021-01-20 15:18:01,853 INFO L429 AbstractCegarLoop]: === Iteration 77 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:18:01,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:18:01,853 INFO L82 PathProgramCache]: Analyzing trace with hash 1209224627, now seen corresponding path program 74 times [2021-01-20 15:18:01,853 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:18:01,854 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [785051557] [2021-01-20 15:18:01,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:18:01,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:18:03,271 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:18:03,569 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:18:03,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:18:03,952 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [785051557] [2021-01-20 15:18:03,952 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:18:03,952 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:18:03,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11953186] [2021-01-20 15:18:03,953 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:18:03,953 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:18:03,953 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:18:03,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=480, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:18:03,955 INFO L87 Difference]: Start difference. First operand 65125 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:04,743 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:18:04,950 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:18:05,297 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:18:05,649 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:18:05,985 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:18:06,347 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:18:06,782 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:18:07,234 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 64 [2021-01-20 15:18:07,694 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 15:18:08,209 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:18:08,622 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 68 [2021-01-20 15:18:09,228 WARN L193 SmtUtils]: Spent 444.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 74 [2021-01-20 15:18:10,151 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 67 [2021-01-20 15:18:10,708 WARN L193 SmtUtils]: Spent 401.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 71 [2021-01-20 15:18:11,272 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 77 [2021-01-20 15:18:12,500 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 66 [2021-01-20 15:18:12,995 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 90 DAG size of output: 75 [2021-01-20 15:18:13,419 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 69 [2021-01-20 15:18:14,020 WARN L193 SmtUtils]: Spent 527.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 78 [2021-01-20 15:18:14,464 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 72 [2021-01-20 15:18:14,996 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 81 [2021-01-20 15:18:15,431 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 70 [2021-01-20 15:18:16,006 WARN L193 SmtUtils]: Spent 508.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-20 15:18:16,449 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:18:16,917 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:18:16,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:18:16,951 INFO L93 Difference]: Finished difference Result 65741 states and 131987 transitions. [2021-01-20 15:18:16,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2021-01-20 15:18:16,954 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:18:16,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:18:17,059 INFO L225 Difference]: With dead ends: 65741 [2021-01-20 15:18:17,060 INFO L226 Difference]: Without dead ends: 65741 [2021-01-20 15:18:17,060 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 239 ImplicationChecksByTransitivity, 11.8s TimeCoverageRelationStatistics Valid=811, Invalid=1841, Unknown=0, NotChecked=0, Total=2652 [2021-01-20 15:18:17,060 INFO L78 Accepts]: Start accepts. Automaton has 65741 states. Word has length 90 [2021-01-20 15:18:17,060 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:18:17,060 INFO L481 AbstractCegarLoop]: Abstraction has 65741 states. [2021-01-20 15:18:17,061 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:17,061 INFO L276 IsEmpty]: Start isEmpty. Operand 65741 states. [2021-01-20 15:18:17,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:18:17,128 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:18:17,128 INFO L504 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] [2021-01-20 15:18:17,128 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable76 [2021-01-20 15:18:17,129 INFO L429 AbstractCegarLoop]: === Iteration 78 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:18:17,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:18:17,129 INFO L82 PathProgramCache]: Analyzing trace with hash -712278317, now seen corresponding path program 75 times [2021-01-20 15:18:17,129 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:18:17,129 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1957990335] [2021-01-20 15:18:17,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:18:17,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:18:18,544 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:18:18,769 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:18:19,036 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:18:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:18:19,346 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1957990335] [2021-01-20 15:18:19,346 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:18:19,346 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:18:19,346 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1072310518] [2021-01-20 15:18:19,346 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:18:19,347 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:18:19,347 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:18:19,347 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=484, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:18:19,347 INFO L87 Difference]: Start difference. First operand 65741 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:20,107 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:18:20,328 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:18:20,677 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:18:21,013 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:18:21,371 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:18:21,765 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:18:22,223 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:18:22,756 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 15:18:23,294 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 15:18:23,887 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 70 [2021-01-20 15:18:24,339 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-01-20 15:18:24,979 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 89 DAG size of output: 75 [2021-01-20 15:18:26,188 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:18:26,817 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:18:27,285 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 15:18:27,872 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:18:29,184 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 15:18:29,757 WARN L193 SmtUtils]: Spent 494.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:18:30,169 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 15:18:30,666 WARN L193 SmtUtils]: Spent 416.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 79 [2021-01-20 15:18:31,124 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 15:18:31,733 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 82 [2021-01-20 15:18:32,182 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 15:18:32,705 WARN L193 SmtUtils]: Spent 453.00 ms on a formula simplification. DAG size of input: 95 DAG size of output: 80 [2021-01-20 15:18:33,181 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 15:18:33,692 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 77 [2021-01-20 15:18:33,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:18:33,730 INFO L93 Difference]: Finished difference Result 65737 states and 131983 transitions. [2021-01-20 15:18:33,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 15:18:33,732 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:18:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:18:33,814 INFO L225 Difference]: With dead ends: 65737 [2021-01-20 15:18:33,814 INFO L226 Difference]: Without dead ends: 65737 [2021-01-20 15:18:33,814 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 278 ImplicationChecksByTransitivity, 12.6s TimeCoverageRelationStatistics Valid=803, Invalid=1953, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 15:18:33,814 INFO L78 Accepts]: Start accepts. Automaton has 65737 states. Word has length 90 [2021-01-20 15:18:33,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:18:33,815 INFO L481 AbstractCegarLoop]: Abstraction has 65737 states. [2021-01-20 15:18:33,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:33,815 INFO L276 IsEmpty]: Start isEmpty. Operand 65737 states. [2021-01-20 15:18:33,891 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:18:33,891 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:18:33,891 INFO L504 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] [2021-01-20 15:18:33,892 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable77 [2021-01-20 15:18:33,892 INFO L429 AbstractCegarLoop]: === Iteration 79 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:18:33,892 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:18:33,892 INFO L82 PathProgramCache]: Analyzing trace with hash 1689375067, now seen corresponding path program 76 times [2021-01-20 15:18:33,892 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:18:33,892 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890858297] [2021-01-20 15:18:33,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:18:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:18:35,376 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:18:35,671 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:18:36,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:18:36,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890858297] [2021-01-20 15:18:36,020 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:18:36,020 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:18:36,020 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584763543] [2021-01-20 15:18:36,020 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:18:36,020 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:18:36,021 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:18:36,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=485, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:18:36,021 INFO L87 Difference]: Start difference. First operand 65737 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:36,812 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:18:37,037 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:18:37,409 WARN L193 SmtUtils]: Spent 176.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:18:37,773 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:18:38,131 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:18:38,534 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:18:38,966 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:18:39,447 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 15:18:39,930 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 64 [2021-01-20 15:18:40,480 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 69 [2021-01-20 15:18:41,636 WARN L193 SmtUtils]: Spent 354.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:18:42,102 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 15:18:42,627 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 15:18:43,112 WARN L193 SmtUtils]: Spent 425.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:18:43,705 WARN L193 SmtUtils]: Spent 438.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:18:45,131 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 15:18:45,673 WARN L193 SmtUtils]: Spent 466.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 71 [2021-01-20 15:18:46,123 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 15:18:46,612 WARN L193 SmtUtils]: Spent 410.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 74 [2021-01-20 15:18:47,134 WARN L193 SmtUtils]: Spent 429.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 15:18:47,637 WARN L193 SmtUtils]: Spent 426.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 77 [2021-01-20 15:18:48,108 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 15:18:48,561 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 71 [2021-01-20 15:18:49,065 WARN L193 SmtUtils]: Spent 433.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 75 [2021-01-20 15:18:49,537 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 68 [2021-01-20 15:18:50,002 WARN L193 SmtUtils]: Spent 394.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 72 [2021-01-20 15:18:50,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-01-20 15:18:50,040 INFO L93 Difference]: Finished difference Result 65733 states and 131979 transitions. [2021-01-20 15:18:50,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-01-20 15:18:50,042 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 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 90 [2021-01-20 15:18:50,042 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-01-20 15:18:50,160 INFO L225 Difference]: With dead ends: 65733 [2021-01-20 15:18:50,160 INFO L226 Difference]: Without dead ends: 65733 [2021-01-20 15:18:50,161 INFO L769 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 290 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=787, Invalid=1969, Unknown=0, NotChecked=0, Total=2756 [2021-01-20 15:18:50,161 INFO L78 Accepts]: Start accepts. Automaton has 65733 states. Word has length 90 [2021-01-20 15:18:50,161 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-01-20 15:18:50,161 INFO L481 AbstractCegarLoop]: Abstraction has 65733 states. [2021-01-20 15:18:50,161 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:50,162 INFO L276 IsEmpty]: Start isEmpty. Operand 65733 states. [2021-01-20 15:18:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2021-01-20 15:18:50,262 INFO L496 BasicCegarLoop]: Found error trace [2021-01-20 15:18:50,262 INFO L504 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] [2021-01-20 15:18:50,262 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable78 [2021-01-20 15:18:50,262 INFO L429 AbstractCegarLoop]: === Iteration 80 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-01-20 15:18:50,263 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-01-20 15:18:50,263 INFO L82 PathProgramCache]: Analyzing trace with hash -1342354443, now seen corresponding path program 77 times [2021-01-20 15:18:50,263 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-01-20 15:18:50,263 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751508738] [2021-01-20 15:18:50,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-01-20 15:18:50,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-01-20 15:18:51,790 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 25 [2021-01-20 15:18:52,078 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 32 [2021-01-20 15:18:52,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-01-20 15:18:52,422 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751508738] [2021-01-20 15:18:52,422 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-01-20 15:18:52,423 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2021-01-20 15:18:52,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068106055] [2021-01-20 15:18:52,423 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2021-01-20 15:18:52,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-01-20 15:18:52,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2021-01-20 15:18:52,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=66, Invalid=486, Unknown=0, NotChecked=0, Total=552 [2021-01-20 15:18:52,424 INFO L87 Difference]: Start difference. First operand 65733 states. Second operand has 24 states, 24 states have (on average 3.75) internal successors, (90), 24 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-01-20 15:18:53,178 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 33 [2021-01-20 15:18:53,380 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2021-01-20 15:18:53,720 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2021-01-20 15:18:54,058 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2021-01-20 15:18:54,421 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2021-01-20 15:18:54,817 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2021-01-20 15:18:55,288 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 60 [2021-01-20 15:18:55,782 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 65 [2021-01-20 15:18:56,852 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 [2021-01-20 15:18:57,282 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 67 [2021-01-20 15:18:57,756 WARN L193 SmtUtils]: Spent 374.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 67 [2021-01-20 15:18:58,256 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 71 [2021-01-20 15:18:58,800 WARN L193 SmtUtils]: Spent 482.00 ms on a formula simplification. DAG size of input: 87 DAG size of output: 73 [2021-01-20 15:18:59,374 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 91 DAG size of output: 76 [2021-01-20 15:19:00,686 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 67 [2021-01-20 15:19:01,136 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 70 [2021-01-20 15:19:01,605 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 73 [2021-01-20 15:19:02,017 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification. DAG size of input: 72 DAG size of output: 63 Received shutdown request... [2021-01-20 15:19:02,272 WARN L210 SmtUtils]: Removed 22 from assertion stack [2021-01-20 15:19:02,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2021-01-20 15:19:02,273 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable79 [2021-01-20 15:19:02,273 WARN L546 AbstractCegarLoop]: Verification canceled [2021-01-20 15:19:02,277 WARN L250 ceAbstractionStarter]: Timeout [2021-01-20 15:19:02,277 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.01 03:19:02 BasicIcfg [2021-01-20 15:19:02,277 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-01-20 15:19:02,279 INFO L168 Benchmark]: Toolchain (without parser) took 678676.61 ms. Allocated memory was 302.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 274.7 MB in the beginning and 830.5 MB in the end (delta: -555.8 MB). Peak memory consumption was 2.4 GB. Max. memory is 16.0 GB. [2021-01-20 15:19:02,279 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-01-20 15:19:02,279 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1564.14 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 175.9 MB in the end (delta: 98.6 MB). Peak memory consumption was 101.8 MB. Max. memory is 16.0 GB. [2021-01-20 15:19:02,279 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.21 ms. Allocated memory is still 302.0 MB. Free memory was 175.9 MB in the beginning and 172.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-01-20 15:19:02,279 INFO L168 Benchmark]: Boogie Preprocessor took 89.84 ms. Allocated memory is still 302.0 MB. Free memory was 172.7 MB in the beginning and 169.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-01-20 15:19:02,280 INFO L168 Benchmark]: RCFGBuilder took 778.38 ms. Allocated memory is still 302.0 MB. Free memory was 169.6 MB in the beginning and 121.3 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. [2021-01-20 15:19:02,280 INFO L168 Benchmark]: TraceAbstraction took 676108.45 ms. Allocated memory was 302.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 120.3 MB in the beginning and 830.5 MB in the end (delta: -710.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 16.0 GB. [2021-01-20 15:19:02,281 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 302.0 MB. Free memory is still 272.5 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1564.14 ms. Allocated memory is still 302.0 MB. Free memory was 274.5 MB in the beginning and 175.9 MB in the end (delta: 98.6 MB). Peak memory consumption was 101.8 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 124.21 ms. Allocated memory is still 302.0 MB. Free memory was 175.9 MB in the beginning and 172.7 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 89.84 ms. Allocated memory is still 302.0 MB. Free memory was 172.7 MB in the beginning and 169.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 778.38 ms. Allocated memory is still 302.0 MB. Free memory was 169.6 MB in the beginning and 121.3 MB in the end (delta: 48.2 MB). Peak memory consumption was 48.2 MB. Max. memory is 16.0 GB. * TraceAbstraction took 676108.45 ms. Allocated memory was 302.0 MB in the beginning and 2.8 GB in the end (delta: 2.5 GB). Free memory was 120.3 MB in the beginning and 830.5 MB in the end (delta: -710.2 MB). Peak memory consumption was 2.2 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (65733states) and FLOYD_HOARE automaton (currently 26 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 186ms.. - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (65733states) and FLOYD_HOARE automaton (currently 26 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 186ms.. - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (65733states) and FLOYD_HOARE automaton (currently 26 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 186ms.. - TimeoutResultAtElement [Line: 1671]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 1671). Cancelled while BasicCegarLoop was constructing difference of abstraction (65733states) and FLOYD_HOARE automaton (currently 26 states, 24 states before enhancement),while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 80 for 186ms.. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 130 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 675.9s, OverallIterations: 80, TraceHistogramMax: 1, AutomataDifference: 569.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, HoareTripleCheckerStatistics: 22255 SDtfs, 71128 SDslu, 199271 SDs, 0 SdLazy, 84467 SolverSat, 4291 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 82.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3581 GetRequests, 240 SyntacticMatches, 1 SemanticMatches, 3339 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15363 ImplicationChecksByTransitivity, 512.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=65741occurred in iteration=77, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.3s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 97.7s InterpolantComputationTime, 7098 NumberOfCodeBlocks, 7098 NumberOfCodeBlocksAsserted, 80 NumberOfCheckSat, 7018 ConstructedInterpolants, 0 QuantifiedInterpolants, 8884656 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 80 InterpolantComputations, 80 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown !SESSION 2021-01-20 15:07:39.988 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.9 java.vendor=AdoptOpenJDK BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_GB Framework arguments: -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i Command-line arguments: -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/ldv-races/race-2_2-container_of.i !ENTRY org.eclipse.osgi 4 0 2021-01-20 15:19:02.548 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13a77e45/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a13a77e45/.metadata/.log.