/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-3_2-container_of-global.i -------------------------------------------------------------------------------- This is Ultimate 0.2.0-aa1e80b [2020-12-17 17:38:29,174 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-17 17:38:29,177 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-17 17:38:29,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-17 17:38:29,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-17 17:38:29,244 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-17 17:38:29,248 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-17 17:38:29,256 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-17 17:38:29,260 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-17 17:38:29,266 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-17 17:38:29,268 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-17 17:38:29,270 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-17 17:38:29,270 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-17 17:38:29,274 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-17 17:38:29,276 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-17 17:38:29,278 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-17 17:38:29,279 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-17 17:38:29,283 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-17 17:38:29,290 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-17 17:38:29,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-17 17:38:29,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-17 17:38:29,302 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-17 17:38:29,304 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-17 17:38:29,307 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-17 17:38:29,314 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-12-17 17:38:29,322 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-17 17:38:29,323 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-17 17:38:29,325 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-17 17:38:29,326 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-17 17:38:29,327 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-17 17:38:29,328 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-17 17:38:29,328 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-17 17:38:29,329 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-17 17:38:29,329 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-17 17:38:29,330 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-17 17:38:29,331 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-17 17:38:29,332 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 [2020-12-17 17:38:29,384 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-17 17:38:29,384 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-17 17:38:29,389 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-12-17 17:38:29,389 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-12-17 17:38:29,390 INFO L138 SettingsManager]: * Use SBE=true [2020-12-17 17:38:29,390 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-17 17:38:29,390 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-17 17:38:29,390 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-17 17:38:29,391 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-17 17:38:29,391 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-17 17:38:29,392 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-17 17:38:29,393 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-17 17:38:29,393 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-17 17:38:29,393 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-17 17:38:29,393 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-17 17:38:29,393 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-17 17:38:29,394 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-17 17:38:29,394 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-17 17:38:29,394 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-12-17 17:38:29,394 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-12-17 17:38:29,395 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-17 17:38:29,395 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-17 17:38:29,395 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-17 17:38:29,395 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-17 17:38:29,396 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-17 17:38:29,396 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-12-17 17:38:29,396 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-17 17:38:29,396 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2020-12-17 17:38:29,397 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-17 17:38:29,397 INFO L138 SettingsManager]: * Minimization of abstraction=NONE [2020-12-17 17:38:29,397 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-12-17 17:38:29,847 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-17 17:38:29,890 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-17 17:38:29,893 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-17 17:38:29,895 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-17 17:38:29,895 INFO L275 PluginConnector]: CDTParser initialized [2020-12-17 17:38:29,897 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-12-17 17:38:29,995 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c16c4598/c48fdc8a67184fd3ba8b19e06fc4763c/FLAG6566529a5 [2020-12-17 17:38:30,842 INFO L306 CDTParser]: Found 1 translation units. [2020-12-17 17:38:30,844 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-3_2-container_of-global.i [2020-12-17 17:38:30,884 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c16c4598/c48fdc8a67184fd3ba8b19e06fc4763c/FLAG6566529a5 [2020-12-17 17:38:31,036 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0c16c4598/c48fdc8a67184fd3ba8b19e06fc4763c [2020-12-17 17:38:31,039 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-17 17:38:31,041 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2020-12-17 17:38:31,044 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-17 17:38:31,045 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-17 17:38:31,052 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-17 17:38:31,053 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:38:31" (1/1) ... [2020-12-17 17:38:31,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@66b2d132 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:31, skipping insertion in model container [2020-12-17 17:38:31,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.12 05:38:31" (1/1) ... [2020-12-17 17:38:31,066 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-17 17:38:31,153 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-17 17:38:31,343 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-17 17:38:32,143 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 17:38:32,158 INFO L203 MainTranslator]: Completed pre-run [2020-12-17 17:38:32,176 WARN L612 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2020-12-17 17:38:32,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-17 17:38:32,722 INFO L208 MainTranslator]: Completed translation [2020-12-17 17:38:32,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32 WrapperNode [2020-12-17 17:38:32,725 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-17 17:38:32,728 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-17 17:38:32,728 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-17 17:38:32,728 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-17 17:38:32,735 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,805 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-17 17:38:32,806 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-17 17:38:32,806 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-17 17:38:32,806 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-17 17:38:32,816 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,816 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,824 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,825 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,842 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,845 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (1/1) ... [2020-12-17 17:38:32,861 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-17 17:38:32,862 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-17 17:38:32,862 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-17 17:38:32,862 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-17 17:38:32,863 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (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 [2020-12-17 17:38:32,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-12-17 17:38:32,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-12-17 17:38:32,939 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-12-17 17:38:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-12-17 17:38:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-12-17 17:38:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-17 17:38:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-17 17:38:32,940 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2020-12-17 17:38:32,940 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2020-12-17 17:38:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-17 17:38:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-12-17 17:38:32,941 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-17 17:38:32,943 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-12-17 17:38:33,854 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-17 17:38:33,854 INFO L298 CfgBuilder]: Removed 36 assume(true) statements. [2020-12-17 17:38:33,856 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:38:33 BoogieIcfgContainer [2020-12-17 17:38:33,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-17 17:38:33,859 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-17 17:38:33,859 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-17 17:38:33,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-17 17:38:33,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.12 05:38:31" (1/3) ... [2020-12-17 17:38:33,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ec69de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:38:33, skipping insertion in model container [2020-12-17 17:38:33,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.12 05:38:32" (2/3) ... [2020-12-17 17:38:33,864 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@11ec69de and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.12 05:38:33, skipping insertion in model container [2020-12-17 17:38:33,864 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.12 05:38:33" (3/3) ... [2020-12-17 17:38:33,866 INFO L111 eAbstractionObserver]: Analyzing ICFG race-3_2-container_of-global.i [2020-12-17 17:38:33,882 WARN L168 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-12-17 17:38:33,883 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-17 17:38:33,887 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-17 17:38:33,888 INFO L351 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-12-17 17:38:33,927 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,928 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,928 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,928 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,929 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,929 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,930 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,931 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,932 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,933 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,934 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,934 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,934 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,934 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,935 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,935 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,935 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,935 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,936 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,937 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,937 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,937 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,938 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,938 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,938 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,938 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,939 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,939 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,939 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,939 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,939 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,940 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,941 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,941 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,941 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,941 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,942 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,943 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,944 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,945 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,945 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,946 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,946 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,947 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,948 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,948 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,948 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,948 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,951 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,951 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,952 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,952 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,953 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,953 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,953 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork0_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,957 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,957 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,957 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~data~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,958 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,958 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#t~mem9| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,958 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~lb~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,958 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,959 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,959 WARN L313 ript$VariableManager]: TermVariabe my_callbackThread1of1ForFork1_~__mptr~0.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,959 WARN L313 ript$VariableManager]: TermVariabe |my_callbackThread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-12-17 17:38:33,969 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2020-12-17 17:38:33,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-12-17 17:38:34,008 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-17 17:38:34,009 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-17 17:38:34,009 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-17 17:38:34,009 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-17 17:38:34,009 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-17 17:38:34,009 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-17 17:38:34,009 INFO L383 AbstractCegarLoop]: Minimize is NONE [2020-12-17 17:38:34,010 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-17 17:38:34,027 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 170 places, 180 transitions, 382 flow [2020-12-17 17:38:34,272 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 4764 states, 4753 states have (on average 2.7973911213970126) internal successors, (13296), 4763 states have internal predecessors, (13296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:34,293 INFO L276 IsEmpty]: Start isEmpty. Operand has 4764 states, 4753 states have (on average 2.7973911213970126) internal successors, (13296), 4763 states have internal predecessors, (13296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:34,302 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2020-12-17 17:38:34,302 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:34,303 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] [2020-12-17 17:38:34,303 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:34,310 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:34,310 INFO L82 PathProgramCache]: Analyzing trace with hash 1228399053, now seen corresponding path program 1 times [2020-12-17 17:38:34,321 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:34,321 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1573537468] [2020-12-17 17:38:34,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:34,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:34,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:34,892 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1573537468] [2020-12-17 17:38:34,893 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:34,893 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 17:38:34,895 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [367734167] [2020-12-17 17:38:34,900 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 17:38:34,901 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:34,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 17:38:34,920 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 17:38:34,940 INFO L87 Difference]: Start difference. First operand has 4764 states, 4753 states have (on average 2.7973911213970126) internal successors, (13296), 4763 states have internal predecessors, (13296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:35,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:35,380 INFO L93 Difference]: Finished difference Result 4353 states and 11752 transitions. [2020-12-17 17:38:35,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-12-17 17:38:35,382 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 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 38 [2020-12-17 17:38:35,383 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:35,422 INFO L225 Difference]: With dead ends: 4353 [2020-12-17 17:38:35,422 INFO L226 Difference]: Without dead ends: 3636 [2020-12-17 17:38:35,424 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=71, Unknown=0, NotChecked=0, Total=110 [2020-12-17 17:38:35,424 INFO L78 Accepts]: Start accepts. Automaton has 3636 states. Word has length 38 [2020-12-17 17:38:35,425 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:35,425 INFO L481 AbstractCegarLoop]: Abstraction has 3636 states. [2020-12-17 17:38:35,426 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 6.333333333333333) internal successors, (38), 6 states have internal predecessors, (38), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:35,426 INFO L276 IsEmpty]: Start isEmpty. Operand 3636 states. [2020-12-17 17:38:35,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-12-17 17:38:35,428 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:35,428 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] [2020-12-17 17:38:35,428 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-17 17:38:35,429 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:35,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:35,430 INFO L82 PathProgramCache]: Analyzing trace with hash -705470739, now seen corresponding path program 1 times [2020-12-17 17:38:35,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:35,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1280320673] [2020-12-17 17:38:35,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:35,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:35,645 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:35,646 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1280320673] [2020-12-17 17:38:35,646 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:35,646 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 17:38:35,646 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1828889957] [2020-12-17 17:38:35,650 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 17:38:35,651 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:35,652 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 17:38:35,652 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 17:38:35,652 INFO L87 Difference]: Start difference. First operand 3636 states. Second operand has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:35,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:35,882 INFO L93 Difference]: Finished difference Result 3635 states and 9774 transitions. [2020-12-17 17:38:35,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-12-17 17:38:35,882 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 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 44 [2020-12-17 17:38:35,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:35,905 INFO L225 Difference]: With dead ends: 3635 [2020-12-17 17:38:35,906 INFO L226 Difference]: Without dead ends: 3635 [2020-12-17 17:38:35,907 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2020-12-17 17:38:35,907 INFO L78 Accepts]: Start accepts. Automaton has 3635 states. Word has length 44 [2020-12-17 17:38:35,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:35,907 INFO L481 AbstractCegarLoop]: Abstraction has 3635 states. [2020-12-17 17:38:35,908 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 7.333333333333333) internal successors, (44), 6 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:35,908 INFO L276 IsEmpty]: Start isEmpty. Operand 3635 states. [2020-12-17 17:38:35,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2020-12-17 17:38:35,919 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:35,919 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] [2020-12-17 17:38:35,920 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-17 17:38:35,920 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:35,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:35,921 INFO L82 PathProgramCache]: Analyzing trace with hash 65657062, now seen corresponding path program 1 times [2020-12-17 17:38:35,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:35,924 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678123181] [2020-12-17 17:38:35,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:35,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:36,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:36,145 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678123181] [2020-12-17 17:38:36,145 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:36,145 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 17:38:36,145 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613691037] [2020-12-17 17:38:36,146 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 17:38:36,147 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:36,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 17:38:36,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 17:38:36,151 INFO L87 Difference]: Start difference. First operand 3635 states. Second operand has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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) [2020-12-17 17:38:36,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:36,606 INFO L93 Difference]: Finished difference Result 5256 states and 14110 transitions. [2020-12-17 17:38:36,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-12-17 17:38:36,607 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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 [2020-12-17 17:38:36,607 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:36,644 INFO L225 Difference]: With dead ends: 5256 [2020-12-17 17:38:36,645 INFO L226 Difference]: Without dead ends: 5256 [2020-12-17 17:38:36,645 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=67, Invalid=143, Unknown=0, NotChecked=0, Total=210 [2020-12-17 17:38:36,645 INFO L78 Accepts]: Start accepts. Automaton has 5256 states. Word has length 62 [2020-12-17 17:38:36,646 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:36,646 INFO L481 AbstractCegarLoop]: Abstraction has 5256 states. [2020-12-17 17:38:36,646 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 10.333333333333334) internal successors, (62), 6 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) [2020-12-17 17:38:36,647 INFO L276 IsEmpty]: Start isEmpty. Operand 5256 states. [2020-12-17 17:38:36,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2020-12-17 17:38:36,650 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:36,651 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] [2020-12-17 17:38:36,651 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-17 17:38:36,651 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:36,652 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:36,652 INFO L82 PathProgramCache]: Analyzing trace with hash -1474072989, now seen corresponding path program 1 times [2020-12-17 17:38:36,652 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:36,653 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5167607] [2020-12-17 17:38:36,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:36,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:36,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:36,793 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5167607] [2020-12-17 17:38:36,793 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:36,793 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-17 17:38:36,794 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [842249177] [2020-12-17 17:38:36,794 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-17 17:38:36,794 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:36,795 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-17 17:38:36,795 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-17 17:38:36,796 INFO L87 Difference]: Start difference. First operand 5256 states. Second operand has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:37,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:37,160 INFO L93 Difference]: Finished difference Result 6332 states and 16876 transitions. [2020-12-17 17:38:37,160 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-12-17 17:38:37,161 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 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 68 [2020-12-17 17:38:37,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:37,196 INFO L225 Difference]: With dead ends: 6332 [2020-12-17 17:38:37,196 INFO L226 Difference]: Without dead ends: 5154 [2020-12-17 17:38:37,197 INFO L763 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 [2020-12-17 17:38:37,197 INFO L78 Accepts]: Start accepts. Automaton has 5154 states. Word has length 68 [2020-12-17 17:38:37,197 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:37,197 INFO L481 AbstractCegarLoop]: Abstraction has 5154 states. [2020-12-17 17:38:37,198 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 6 states, 6 states have (on average 11.333333333333334) internal successors, (68), 6 states have internal predecessors, (68), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:37,198 INFO L276 IsEmpty]: Start isEmpty. Operand 5154 states. [2020-12-17 17:38:37,274 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2020-12-17 17:38:37,275 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:37,275 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] [2020-12-17 17:38:37,275 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-12-17 17:38:37,275 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:37,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:37,276 INFO L82 PathProgramCache]: Analyzing trace with hash 158393697, now seen corresponding path program 1 times [2020-12-17 17:38:37,276 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:37,277 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1420655667] [2020-12-17 17:38:37,277 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:37,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:37,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:37,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1420655667] [2020-12-17 17:38:37,383 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:37,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-12-17 17:38:37,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1599650189] [2020-12-17 17:38:37,384 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-17 17:38:37,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:37,385 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-17 17:38:37,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-17 17:38:37,386 INFO L87 Difference]: Start difference. First operand 5154 states. Second operand has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:37,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:37,435 INFO L93 Difference]: Finished difference Result 1503 states and 3861 transitions. [2020-12-17 17:38:37,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-17 17:38:37,435 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2020-12-17 17:38:37,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:37,440 INFO L225 Difference]: With dead ends: 1503 [2020-12-17 17:38:37,441 INFO L226 Difference]: Without dead ends: 1503 [2020-12-17 17:38:37,441 INFO L763 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 [2020-12-17 17:38:37,441 INFO L78 Accepts]: Start accepts. Automaton has 1503 states. Word has length 74 [2020-12-17 17:38:37,442 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:37,442 INFO L481 AbstractCegarLoop]: Abstraction has 1503 states. [2020-12-17 17:38:37,442 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 14.8) internal successors, (74), 5 states have internal predecessors, (74), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:37,442 INFO L276 IsEmpty]: Start isEmpty. Operand 1503 states. [2020-12-17 17:38:37,449 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:37,449 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:37,449 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:37,449 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-12-17 17:38:37,450 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:37,450 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:37,450 INFO L82 PathProgramCache]: Analyzing trace with hash 617397814, now seen corresponding path program 1 times [2020-12-17 17:38:37,451 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:37,451 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299662172] [2020-12-17 17:38:37,451 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:38,136 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:38,136 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299662172] [2020-12-17 17:38:38,138 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:38,138 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-17 17:38:38,138 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2114100790] [2020-12-17 17:38:38,139 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-17 17:38:38,139 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:38,139 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-17 17:38:38,140 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-12-17 17:38:38,140 INFO L87 Difference]: Start difference. First operand 1503 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:39,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:39,408 INFO L93 Difference]: Finished difference Result 1922 states and 4763 transitions. [2020-12-17 17:38:39,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-12-17 17:38:39,409 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:39,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:39,415 INFO L225 Difference]: With dead ends: 1922 [2020-12-17 17:38:39,415 INFO L226 Difference]: Without dead ends: 1922 [2020-12-17 17:38:39,416 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=213, Invalid=489, Unknown=0, NotChecked=0, Total=702 [2020-12-17 17:38:39,416 INFO L78 Accepts]: Start accepts. Automaton has 1922 states. Word has length 101 [2020-12-17 17:38:39,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:39,417 INFO L481 AbstractCegarLoop]: Abstraction has 1922 states. [2020-12-17 17:38:39,417 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:39,417 INFO L276 IsEmpty]: Start isEmpty. Operand 1922 states. [2020-12-17 17:38:39,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:39,423 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:39,424 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:39,424 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-12-17 17:38:39,424 INFO L429 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:39,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:39,425 INFO L82 PathProgramCache]: Analyzing trace with hash 468416544, now seen corresponding path program 2 times [2020-12-17 17:38:39,425 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:39,425 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1459302694] [2020-12-17 17:38:39,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:40,210 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:40,211 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1459302694] [2020-12-17 17:38:40,211 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:40,211 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-17 17:38:40,211 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923560036] [2020-12-17 17:38:40,212 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-17 17:38:40,212 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:40,213 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-17 17:38:40,213 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=174, Unknown=0, NotChecked=0, Total=210 [2020-12-17 17:38:40,214 INFO L87 Difference]: Start difference. First operand 1922 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:41,695 INFO L93 Difference]: Finished difference Result 2257 states and 5389 transitions. [2020-12-17 17:38:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 17:38:41,696 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:41,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:41,704 INFO L225 Difference]: With dead ends: 2257 [2020-12-17 17:38:41,704 INFO L226 Difference]: Without dead ends: 2257 [2020-12-17 17:38:41,706 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 108 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=232, Invalid=580, Unknown=0, NotChecked=0, Total=812 [2020-12-17 17:38:41,707 INFO L78 Accepts]: Start accepts. Automaton has 2257 states. Word has length 101 [2020-12-17 17:38:41,709 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:41,709 INFO L481 AbstractCegarLoop]: Abstraction has 2257 states. [2020-12-17 17:38:41,714 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:41,714 INFO L276 IsEmpty]: Start isEmpty. Operand 2257 states. [2020-12-17 17:38:41,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:41,725 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:41,726 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:41,727 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-12-17 17:38:41,727 INFO L429 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:41,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:41,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1309949500, now seen corresponding path program 3 times [2020-12-17 17:38:41,728 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:41,729 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111461876] [2020-12-17 17:38:41,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:41,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:42,512 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:42,512 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111461876] [2020-12-17 17:38:42,512 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:42,512 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-17 17:38:42,513 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741337732] [2020-12-17 17:38:42,513 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-17 17:38:42,513 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:42,514 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-17 17:38:42,514 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=175, Unknown=0, NotChecked=0, Total=210 [2020-12-17 17:38:42,514 INFO L87 Difference]: Start difference. First operand 2257 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:43,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:43,812 INFO L93 Difference]: Finished difference Result 2617 states and 6073 transitions. [2020-12-17 17:38:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 17:38:43,813 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:43,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:43,820 INFO L225 Difference]: With dead ends: 2617 [2020-12-17 17:38:43,820 INFO L226 Difference]: Without dead ends: 2617 [2020-12-17 17:38:43,821 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=221, Invalid=591, Unknown=0, NotChecked=0, Total=812 [2020-12-17 17:38:43,821 INFO L78 Accepts]: Start accepts. Automaton has 2617 states. Word has length 101 [2020-12-17 17:38:43,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:43,821 INFO L481 AbstractCegarLoop]: Abstraction has 2617 states. [2020-12-17 17:38:43,822 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:43,822 INFO L276 IsEmpty]: Start isEmpty. Operand 2617 states. [2020-12-17 17:38:43,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:43,829 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:43,829 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:43,829 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-12-17 17:38:43,829 INFO L429 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:43,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:43,830 INFO L82 PathProgramCache]: Analyzing trace with hash 1042713406, now seen corresponding path program 4 times [2020-12-17 17:38:43,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:43,830 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [482887273] [2020-12-17 17:38:43,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:43,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:44,476 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:44,477 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [482887273] [2020-12-17 17:38:44,477 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:44,477 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-12-17 17:38:44,477 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555910768] [2020-12-17 17:38:44,478 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-12-17 17:38:44,478 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:44,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-12-17 17:38:44,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=176, Unknown=0, NotChecked=0, Total=210 [2020-12-17 17:38:44,479 INFO L87 Difference]: Start difference. First operand 2617 states. Second operand has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:45,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:45,687 INFO L93 Difference]: Finished difference Result 2669 states and 6142 transitions. [2020-12-17 17:38:45,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2020-12-17 17:38:45,687 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:45,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:45,693 INFO L225 Difference]: With dead ends: 2669 [2020-12-17 17:38:45,694 INFO L226 Difference]: Without dead ends: 2669 [2020-12-17 17:38:45,695 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=210, Invalid=602, Unknown=0, NotChecked=0, Total=812 [2020-12-17 17:38:45,695 INFO L78 Accepts]: Start accepts. Automaton has 2669 states. Word has length 101 [2020-12-17 17:38:45,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:45,696 INFO L481 AbstractCegarLoop]: Abstraction has 2669 states. [2020-12-17 17:38:45,696 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 6.733333333333333) internal successors, (101), 15 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:45,697 INFO L276 IsEmpty]: Start isEmpty. Operand 2669 states. [2020-12-17 17:38:45,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:45,708 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:45,708 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:45,709 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-12-17 17:38:45,709 INFO L429 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:45,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:45,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1324672564, now seen corresponding path program 5 times [2020-12-17 17:38:45,710 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:45,710 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707795921] [2020-12-17 17:38:45,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:45,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:46,574 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:46,575 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707795921] [2020-12-17 17:38:46,575 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:46,575 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:38:46,575 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311446418] [2020-12-17 17:38:46,576 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:38:46,576 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:46,576 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:38:46,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=253, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:38:46,577 INFO L87 Difference]: Start difference. First operand 2669 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:47,433 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-12-17 17:38:47,628 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 50 [2020-12-17 17:38:48,016 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 52 [2020-12-17 17:38:48,341 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-17 17:38:48,519 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-17 17:38:48,665 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-17 17:38:48,870 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-17 17:38:49,034 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 47 [2020-12-17 17:38:49,041 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:49,041 INFO L93 Difference]: Finished difference Result 4248 states and 9587 transitions. [2020-12-17 17:38:49,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 17:38:49,042 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:49,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:49,052 INFO L225 Difference]: With dead ends: 4248 [2020-12-17 17:38:49,052 INFO L226 Difference]: Without dead ends: 4248 [2020-12-17 17:38:49,053 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 115 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=290, Invalid=702, Unknown=0, NotChecked=0, Total=992 [2020-12-17 17:38:49,053 INFO L78 Accepts]: Start accepts. Automaton has 4248 states. Word has length 101 [2020-12-17 17:38:49,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:49,054 INFO L481 AbstractCegarLoop]: Abstraction has 4248 states. [2020-12-17 17:38:49,054 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:49,054 INFO L276 IsEmpty]: Start isEmpty. Operand 4248 states. [2020-12-17 17:38:49,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:49,066 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:49,066 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:49,066 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-12-17 17:38:49,067 INFO L429 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:49,067 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:49,067 INFO L82 PathProgramCache]: Analyzing trace with hash 75702232, now seen corresponding path program 6 times [2020-12-17 17:38:49,068 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:49,068 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592285795] [2020-12-17 17:38:49,068 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:49,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:49,990 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:49,990 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592285795] [2020-12-17 17:38:49,990 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:49,990 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:38:49,991 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374190907] [2020-12-17 17:38:49,991 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:38:49,991 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:49,992 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:38:49,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=257, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:38:49,993 INFO L87 Difference]: Start difference. First operand 4248 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:50,750 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 45 [2020-12-17 17:38:50,939 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 49 [2020-12-17 17:38:51,334 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:38:51,529 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 53 [2020-12-17 17:38:51,891 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-12-17 17:38:52,065 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 54 [2020-12-17 17:38:52,218 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 51 [2020-12-17 17:38:52,400 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 52 [2020-12-17 17:38:52,540 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-17 17:38:52,547 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:52,548 INFO L93 Difference]: Finished difference Result 4280 states and 9617 transitions. [2020-12-17 17:38:52,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-17 17:38:52,549 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:52,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:52,558 INFO L225 Difference]: With dead ends: 4280 [2020-12-17 17:38:52,558 INFO L226 Difference]: Without dead ends: 4280 [2020-12-17 17:38:52,559 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 130 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=288, Invalid=768, Unknown=0, NotChecked=0, Total=1056 [2020-12-17 17:38:52,559 INFO L78 Accepts]: Start accepts. Automaton has 4280 states. Word has length 101 [2020-12-17 17:38:52,559 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:52,560 INFO L481 AbstractCegarLoop]: Abstraction has 4280 states. [2020-12-17 17:38:52,560 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:52,560 INFO L276 IsEmpty]: Start isEmpty. Operand 4280 states. [2020-12-17 17:38:52,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:52,570 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:52,570 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:52,571 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-12-17 17:38:52,571 INFO L429 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:52,571 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:52,572 INFO L82 PathProgramCache]: Analyzing trace with hash -261508592, now seen corresponding path program 7 times [2020-12-17 17:38:52,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:52,572 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1046646017] [2020-12-17 17:38:52,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:52,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:53,531 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:53,531 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1046646017] [2020-12-17 17:38:53,531 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:53,531 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:38:53,532 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361733272] [2020-12-17 17:38:53,532 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:38:53,532 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:53,533 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:38:53,533 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:38:53,533 INFO L87 Difference]: Start difference. First operand 4280 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:54,187 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 41 [2020-12-17 17:38:54,698 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-17 17:38:54,897 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-17 17:38:55,363 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-12-17 17:38:55,515 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 50 [2020-12-17 17:38:55,759 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 47 [2020-12-17 17:38:55,916 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 48 [2020-12-17 17:38:56,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:56,066 INFO L93 Difference]: Finished difference Result 4312 states and 9647 transitions. [2020-12-17 17:38:56,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:38:56,067 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:56,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:56,077 INFO L225 Difference]: With dead ends: 4312 [2020-12-17 17:38:56,077 INFO L226 Difference]: Without dead ends: 4312 [2020-12-17 17:38:56,078 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 149 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=297, Invalid=825, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:38:56,078 INFO L78 Accepts]: Start accepts. Automaton has 4312 states. Word has length 101 [2020-12-17 17:38:56,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:56,078 INFO L481 AbstractCegarLoop]: Abstraction has 4312 states. [2020-12-17 17:38:56,079 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:56,079 INFO L276 IsEmpty]: Start isEmpty. Operand 4312 states. [2020-12-17 17:38:56,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:56,087 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:56,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:56,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-12-17 17:38:56,088 INFO L429 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:56,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:56,089 INFO L82 PathProgramCache]: Analyzing trace with hash -458904232, now seen corresponding path program 8 times [2020-12-17 17:38:56,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:56,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712360331] [2020-12-17 17:38:56,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:56,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:57,154 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:57,154 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712360331] [2020-12-17 17:38:57,155 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:57,155 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:38:57,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791647439] [2020-12-17 17:38:57,155 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:38:57,156 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:57,156 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:38:57,157 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:38:57,159 INFO L87 Difference]: Start difference. First operand 4312 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:58,102 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-17 17:38:58,285 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 53 [2020-12-17 17:38:58,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:38:58,975 INFO L93 Difference]: Finished difference Result 5239 states and 11354 transitions. [2020-12-17 17:38:58,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:38:58,976 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:38:58,977 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:38:58,989 INFO L225 Difference]: With dead ends: 5239 [2020-12-17 17:38:58,990 INFO L226 Difference]: Without dead ends: 5239 [2020-12-17 17:38:58,990 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=286, Invalid=836, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:38:58,991 INFO L78 Accepts]: Start accepts. Automaton has 5239 states. Word has length 101 [2020-12-17 17:38:58,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:38:58,991 INFO L481 AbstractCegarLoop]: Abstraction has 5239 states. [2020-12-17 17:38:58,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:38:58,991 INFO L276 IsEmpty]: Start isEmpty. Operand 5239 states. [2020-12-17 17:38:59,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:38:59,002 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:38:59,002 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:38:59,002 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-12-17 17:38:59,002 INFO L429 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:38:59,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:38:59,003 INFO L82 PathProgramCache]: Analyzing trace with hash -896833866, now seen corresponding path program 9 times [2020-12-17 17:38:59,003 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:38:59,003 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [706383343] [2020-12-17 17:38:59,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:38:59,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:38:59,697 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 32 DAG size of output: 28 [2020-12-17 17:38:59,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:38:59,966 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [706383343] [2020-12-17 17:38:59,966 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:38:59,966 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:38:59,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295122506] [2020-12-17 17:38:59,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:38:59,967 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:38:59,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:38:59,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:38:59,968 INFO L87 Difference]: Start difference. First operand 5239 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:00,890 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-17 17:39:01,081 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-17 17:39:01,489 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-12-17 17:39:01,861 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:39:02,024 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-12-17 17:39:02,174 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:39:02,342 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-17 17:39:02,497 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:39:02,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:02,508 INFO L93 Difference]: Finished difference Result 8862 states and 19210 transitions. [2020-12-17 17:39:02,509 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 17:39:02,509 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:02,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:02,519 INFO L225 Difference]: With dead ends: 8862 [2020-12-17 17:39:02,519 INFO L226 Difference]: Without dead ends: 8862 [2020-12-17 17:39:02,520 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 109 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=289, Invalid=703, Unknown=0, NotChecked=0, Total=992 [2020-12-17 17:39:02,520 INFO L78 Accepts]: Start accepts. Automaton has 8862 states. Word has length 101 [2020-12-17 17:39:02,520 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:02,520 INFO L481 AbstractCegarLoop]: Abstraction has 8862 states. [2020-12-17 17:39:02,521 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:02,521 INFO L276 IsEmpty]: Start isEmpty. Operand 8862 states. [2020-12-17 17:39:02,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:02,538 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:02,538 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:02,538 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-12-17 17:39:02,538 INFO L429 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:02,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:02,539 INFO L82 PathProgramCache]: Analyzing trace with hash -2145804198, now seen corresponding path program 10 times [2020-12-17 17:39:02,539 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:02,539 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1032040603] [2020-12-17 17:39:02,539 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:02,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:02,899 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 20 DAG size of output: 15 [2020-12-17 17:39:03,383 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:03,384 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1032040603] [2020-12-17 17:39:03,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:03,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:03,384 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437988136] [2020-12-17 17:39:03,385 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:03,385 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:03,386 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:03,386 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:03,386 INFO L87 Difference]: Start difference. First operand 8862 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:04,191 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-17 17:39:04,386 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-17 17:39:04,746 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:39:04,909 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-17 17:39:05,266 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-17 17:39:05,449 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-17 17:39:05,600 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-17 17:39:05,775 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:39:05,926 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-17 17:39:05,936 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:05,936 INFO L93 Difference]: Finished difference Result 8894 states and 19240 transitions. [2020-12-17 17:39:05,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-17 17:39:05,939 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:05,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:05,949 INFO L225 Difference]: With dead ends: 8894 [2020-12-17 17:39:05,950 INFO L226 Difference]: Without dead ends: 8894 [2020-12-17 17:39:05,950 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 127 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=287, Invalid=769, Unknown=0, NotChecked=0, Total=1056 [2020-12-17 17:39:05,951 INFO L78 Accepts]: Start accepts. Automaton has 8894 states. Word has length 101 [2020-12-17 17:39:05,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:05,951 INFO L481 AbstractCegarLoop]: Abstraction has 8894 states. [2020-12-17 17:39:05,951 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:05,951 INFO L276 IsEmpty]: Start isEmpty. Operand 8894 states. [2020-12-17 17:39:05,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:05,967 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:05,967 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:05,967 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-12-17 17:39:05,967 INFO L429 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:05,967 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:05,968 INFO L82 PathProgramCache]: Analyzing trace with hash 1811952274, now seen corresponding path program 11 times [2020-12-17 17:39:05,968 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:05,968 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [283241373] [2020-12-17 17:39:05,968 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:06,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:06,872 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [283241373] [2020-12-17 17:39:06,873 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:06,873 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:06,873 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [796834329] [2020-12-17 17:39:06,873 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:06,874 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:06,874 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:06,874 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:06,875 INFO L87 Difference]: Start difference. First operand 8894 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:08,009 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:39:08,202 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:39:08,677 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-17 17:39:08,830 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-17 17:39:09,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:09,411 INFO L93 Difference]: Finished difference Result 8978 states and 19319 transitions. [2020-12-17 17:39:09,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:39:09,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:09,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:09,419 INFO L225 Difference]: With dead ends: 8978 [2020-12-17 17:39:09,419 INFO L226 Difference]: Without dead ends: 8978 [2020-12-17 17:39:09,420 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=296, Invalid=826, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:39:09,420 INFO L78 Accepts]: Start accepts. Automaton has 8978 states. Word has length 101 [2020-12-17 17:39:09,420 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:09,420 INFO L481 AbstractCegarLoop]: Abstraction has 8978 states. [2020-12-17 17:39:09,420 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:09,421 INFO L276 IsEmpty]: Start isEmpty. Operand 8978 states. [2020-12-17 17:39:09,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:09,431 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:09,431 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:09,431 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-12-17 17:39:09,431 INFO L429 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:09,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:09,432 INFO L82 PathProgramCache]: Analyzing trace with hash -469674682, now seen corresponding path program 12 times [2020-12-17 17:39:09,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:09,432 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1676619589] [2020-12-17 17:39:09,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:09,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:10,195 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:10,196 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1676619589] [2020-12-17 17:39:10,196 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:10,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:10,196 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905169611] [2020-12-17 17:39:10,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:10,197 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:10,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:10,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=254, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:10,198 INFO L87 Difference]: Start difference. First operand 8978 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:11,274 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:39:11,650 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-17 17:39:11,820 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-17 17:39:12,197 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:39:12,436 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:39:12,600 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:39:12,789 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-17 17:39:12,929 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:39:13,094 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:39:13,265 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:39:13,443 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:39:13,595 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-17 17:39:13,748 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:39:13,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:13,762 INFO L93 Difference]: Finished difference Result 9158 states and 19619 transitions. [2020-12-17 17:39:13,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-17 17:39:13,763 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:13,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:13,774 INFO L225 Difference]: With dead ends: 9158 [2020-12-17 17:39:13,774 INFO L226 Difference]: Without dead ends: 9158 [2020-12-17 17:39:13,775 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 198 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=450, Invalid=1032, Unknown=0, NotChecked=0, Total=1482 [2020-12-17 17:39:13,775 INFO L78 Accepts]: Start accepts. Automaton has 9158 states. Word has length 101 [2020-12-17 17:39:13,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:13,776 INFO L481 AbstractCegarLoop]: Abstraction has 9158 states. [2020-12-17 17:39:13,776 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:13,776 INFO L276 IsEmpty]: Start isEmpty. Operand 9158 states. [2020-12-17 17:39:13,791 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:13,791 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:13,791 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:13,791 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-12-17 17:39:13,792 INFO L429 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:13,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:13,792 INFO L82 PathProgramCache]: Analyzing trace with hash -1718645014, now seen corresponding path program 13 times [2020-12-17 17:39:13,792 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:13,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1733822297] [2020-12-17 17:39:13,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:13,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:14,624 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:14,624 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1733822297] [2020-12-17 17:39:14,625 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:14,625 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:14,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027575535] [2020-12-17 17:39:14,625 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:14,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:14,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:14,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=258, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:14,627 INFO L87 Difference]: Start difference. First operand 9158 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:15,469 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:15,608 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-17 17:39:15,796 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-17 17:39:16,217 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:39:16,412 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:39:16,578 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:39:17,010 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:17,180 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-17 17:39:17,327 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:39:17,517 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-17 17:39:17,647 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:17,798 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-17 17:39:17,964 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-17 17:39:18,128 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-17 17:39:18,412 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-17 17:39:18,422 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:18,423 INFO L93 Difference]: Finished difference Result 9154 states and 19615 transitions. [2020-12-17 17:39:18,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-17 17:39:18,423 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:18,424 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:18,432 INFO L225 Difference]: With dead ends: 9154 [2020-12-17 17:39:18,433 INFO L226 Difference]: Without dead ends: 9154 [2020-12-17 17:39:18,433 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 223 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=435, Invalid=1125, Unknown=0, NotChecked=0, Total=1560 [2020-12-17 17:39:18,433 INFO L78 Accepts]: Start accepts. Automaton has 9154 states. Word has length 101 [2020-12-17 17:39:18,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:18,434 INFO L481 AbstractCegarLoop]: Abstraction has 9154 states. [2020-12-17 17:39:18,434 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:18,434 INFO L276 IsEmpty]: Start isEmpty. Operand 9154 states. [2020-12-17 17:39:18,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:18,443 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:18,444 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:18,444 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-12-17 17:39:18,444 INFO L429 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:18,444 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:18,445 INFO L82 PathProgramCache]: Analyzing trace with hash 1552999138, now seen corresponding path program 14 times [2020-12-17 17:39:18,445 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:18,445 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182470395] [2020-12-17 17:39:18,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:18,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:19,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:19,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182470395] [2020-12-17 17:39:19,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:19,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:19,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1640208657] [2020-12-17 17:39:19,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:19,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:19,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:19,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:19,270 INFO L87 Difference]: Start difference. First operand 9154 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:20,122 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-17 17:39:20,529 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-12-17 17:39:20,670 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:39:20,820 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:39:21,003 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:39:21,419 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:21,579 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:39:21,712 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:21,982 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-17 17:39:22,126 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:22,126 INFO L93 Difference]: Finished difference Result 9186 states and 19645 transitions. [2020-12-17 17:39:22,127 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-17 17:39:22,127 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:22,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:22,136 INFO L225 Difference]: With dead ends: 9186 [2020-12-17 17:39:22,136 INFO L226 Difference]: Without dead ends: 9186 [2020-12-17 17:39:22,136 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 158 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=321, Invalid=869, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:39:22,137 INFO L78 Accepts]: Start accepts. Automaton has 9186 states. Word has length 101 [2020-12-17 17:39:22,137 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:22,137 INFO L481 AbstractCegarLoop]: Abstraction has 9186 states. [2020-12-17 17:39:22,137 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:22,137 INFO L276 IsEmpty]: Start isEmpty. Operand 9186 states. [2020-12-17 17:39:22,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:22,146 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:22,146 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:22,147 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-12-17 17:39:22,147 INFO L429 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:22,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:22,147 INFO L82 PathProgramCache]: Analyzing trace with hash 153705882, now seen corresponding path program 15 times [2020-12-17 17:39:22,148 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:22,148 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793030579] [2020-12-17 17:39:22,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:22,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:23,010 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:23,010 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793030579] [2020-12-17 17:39:23,011 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:23,011 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:23,011 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2267077] [2020-12-17 17:39:23,012 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:23,012 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:23,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:23,012 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:23,013 INFO L87 Difference]: Start difference. First operand 9186 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:24,069 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:39:24,343 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:39:24,931 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-17 17:39:25,412 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:25,412 INFO L93 Difference]: Finished difference Result 9254 states and 19709 transitions. [2020-12-17 17:39:25,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:39:25,413 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:25,413 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:25,422 INFO L225 Difference]: With dead ends: 9254 [2020-12-17 17:39:25,422 INFO L226 Difference]: Without dead ends: 9254 [2020-12-17 17:39:25,422 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=285, Invalid=837, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:39:25,423 INFO L78 Accepts]: Start accepts. Automaton has 9254 states. Word has length 101 [2020-12-17 17:39:25,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:25,423 INFO L481 AbstractCegarLoop]: Abstraction has 9254 states. [2020-12-17 17:39:25,423 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:25,423 INFO L276 IsEmpty]: Start isEmpty. Operand 9254 states. [2020-12-17 17:39:25,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:25,434 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:25,434 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:25,434 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-12-17 17:39:25,434 INFO L429 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:25,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:25,435 INFO L82 PathProgramCache]: Analyzing trace with hash -891827990, now seen corresponding path program 16 times [2020-12-17 17:39:25,435 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:25,435 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074789138] [2020-12-17 17:39:25,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:25,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:26,332 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:26,333 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074789138] [2020-12-17 17:39:26,333 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:26,333 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:26,333 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1929922543] [2020-12-17 17:39:26,334 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:26,334 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:26,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:26,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:26,335 INFO L87 Difference]: Start difference. First operand 9254 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:27,247 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-12-17 17:39:27,415 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:39:27,559 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:39:27,745 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:39:28,343 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 41 [2020-12-17 17:39:28,488 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-17 17:39:28,859 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 44 DAG size of output: 42 [2020-12-17 17:39:29,000 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:29,000 INFO L93 Difference]: Finished difference Result 9250 states and 19705 transitions. [2020-12-17 17:39:29,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-17 17:39:29,001 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:29,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:29,009 INFO L225 Difference]: With dead ends: 9250 [2020-12-17 17:39:29,009 INFO L226 Difference]: Without dead ends: 9250 [2020-12-17 17:39:29,010 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=310, Invalid=880, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:39:29,010 INFO L78 Accepts]: Start accepts. Automaton has 9250 states. Word has length 101 [2020-12-17 17:39:29,010 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:29,011 INFO L481 AbstractCegarLoop]: Abstraction has 9250 states. [2020-12-17 17:39:29,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:29,011 INFO L276 IsEmpty]: Start isEmpty. Operand 9250 states. [2020-12-17 17:39:29,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:29,023 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:29,023 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:29,023 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-12-17 17:39:29,023 INFO L429 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:29,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:29,024 INFO L82 PathProgramCache]: Analyzing trace with hash -1992507712, now seen corresponding path program 17 times [2020-12-17 17:39:29,024 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:29,024 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460048626] [2020-12-17 17:39:29,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:29,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:29,969 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:29,969 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460048626] [2020-12-17 17:39:29,969 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:29,969 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:29,969 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [784937166] [2020-12-17 17:39:29,970 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:29,970 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:29,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:29,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:29,971 INFO L87 Difference]: Start difference. First operand 9250 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:30,886 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-17 17:39:31,078 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-17 17:39:31,272 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-12-17 17:39:32,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:32,022 INFO L93 Difference]: Finished difference Result 10768 states and 22536 transitions. [2020-12-17 17:39:32,022 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:39:32,023 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:32,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:32,033 INFO L225 Difference]: With dead ends: 10768 [2020-12-17 17:39:32,033 INFO L226 Difference]: Without dead ends: 10768 [2020-12-17 17:39:32,034 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:39:32,034 INFO L78 Accepts]: Start accepts. Automaton has 10768 states. Word has length 101 [2020-12-17 17:39:32,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:32,034 INFO L481 AbstractCegarLoop]: Abstraction has 10768 states. [2020-12-17 17:39:32,035 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:32,035 INFO L276 IsEmpty]: Start isEmpty. Operand 10768 states. [2020-12-17 17:39:32,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:32,047 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:32,047 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:32,047 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-12-17 17:39:32,047 INFO L429 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:32,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:32,048 INFO L82 PathProgramCache]: Analyzing trace with hash -1636081134, now seen corresponding path program 18 times [2020-12-17 17:39:32,048 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:32,048 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [435466075] [2020-12-17 17:39:32,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:32,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:32,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [435466075] [2020-12-17 17:39:32,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:32,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:32,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2036139365] [2020-12-17 17:39:32,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:32,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:32,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:32,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:32,970 INFO L87 Difference]: Start difference. First operand 10768 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:33,764 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-17 17:39:33,952 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:39:34,140 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:39:34,833 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:34,834 INFO L93 Difference]: Finished difference Result 10800 states and 22566 transitions. [2020-12-17 17:39:34,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:39:34,834 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:34,835 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:34,845 INFO L225 Difference]: With dead ends: 10800 [2020-12-17 17:39:34,845 INFO L226 Difference]: Without dead ends: 10800 [2020-12-17 17:39:34,846 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 145 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=274, Invalid=848, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:39:34,846 INFO L78 Accepts]: Start accepts. Automaton has 10800 states. Word has length 101 [2020-12-17 17:39:34,846 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:34,846 INFO L481 AbstractCegarLoop]: Abstraction has 10800 states. [2020-12-17 17:39:34,847 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:34,847 INFO L276 IsEmpty]: Start isEmpty. Operand 10800 states. [2020-12-17 17:39:34,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:34,859 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:34,859 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:34,859 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-12-17 17:39:34,859 INFO L429 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:34,860 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:34,860 INFO L82 PathProgramCache]: Analyzing trace with hash -1695111006, now seen corresponding path program 19 times [2020-12-17 17:39:34,860 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:34,860 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2086012406] [2020-12-17 17:39:34,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:34,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:35,749 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:35,749 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2086012406] [2020-12-17 17:39:35,749 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:35,749 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:35,750 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091068718] [2020-12-17 17:39:35,750 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:35,750 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:35,751 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:35,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:35,752 INFO L87 Difference]: Start difference. First operand 10800 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:36,829 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:39:36,970 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:39:37,165 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:39:38,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:38,069 INFO L93 Difference]: Finished difference Result 10796 states and 22562 transitions. [2020-12-17 17:39:38,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-17 17:39:38,070 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:38,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:38,079 INFO L225 Difference]: With dead ends: 10796 [2020-12-17 17:39:38,079 INFO L226 Difference]: Without dead ends: 10796 [2020-12-17 17:39:38,079 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=299, Invalid=891, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:39:38,080 INFO L78 Accepts]: Start accepts. Automaton has 10796 states. Word has length 101 [2020-12-17 17:39:38,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:38,080 INFO L481 AbstractCegarLoop]: Abstraction has 10796 states. [2020-12-17 17:39:38,080 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:38,080 INFO L276 IsEmpty]: Start isEmpty. Operand 10796 states. [2020-12-17 17:39:38,087 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:38,087 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:38,088 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:38,088 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-12-17 17:39:38,088 INFO L429 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:38,088 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:38,088 INFO L82 PathProgramCache]: Analyzing trace with hash -1215254476, now seen corresponding path program 20 times [2020-12-17 17:39:38,089 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:38,089 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732798577] [2020-12-17 17:39:38,089 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:38,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:38,827 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:38,827 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732798577] [2020-12-17 17:39:38,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:38,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:38,828 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453685493] [2020-12-17 17:39:38,828 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:38,828 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:38,829 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:38,829 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:38,829 INFO L87 Difference]: Start difference. First operand 10796 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:39,660 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-17 17:39:39,857 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-17 17:39:40,259 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 53 [2020-12-17 17:39:40,611 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:39:40,761 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 56 [2020-12-17 17:39:40,902 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:39:41,070 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-17 17:39:41,221 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:39:41,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:41,232 INFO L93 Difference]: Finished difference Result 12506 states and 26184 transitions. [2020-12-17 17:39:41,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-12-17 17:39:41,233 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:41,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:41,245 INFO L225 Difference]: With dead ends: 12506 [2020-12-17 17:39:41,245 INFO L226 Difference]: Without dead ends: 12506 [2020-12-17 17:39:41,245 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 101 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=288, Invalid=704, Unknown=0, NotChecked=0, Total=992 [2020-12-17 17:39:41,245 INFO L78 Accepts]: Start accepts. Automaton has 12506 states. Word has length 101 [2020-12-17 17:39:41,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:41,246 INFO L481 AbstractCegarLoop]: Abstraction has 12506 states. [2020-12-17 17:39:41,246 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:41,246 INFO L276 IsEmpty]: Start isEmpty. Operand 12506 states. [2020-12-17 17:39:41,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:41,258 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:41,258 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:41,258 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-12-17 17:39:41,258 INFO L429 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:41,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:41,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1830742488, now seen corresponding path program 21 times [2020-12-17 17:39:41,266 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:41,266 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [85743066] [2020-12-17 17:39:41,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:41,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:42,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:42,126 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [85743066] [2020-12-17 17:39:42,126 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:42,126 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:42,126 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173188911] [2020-12-17 17:39:42,127 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:42,127 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:42,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:42,127 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:42,128 INFO L87 Difference]: Start difference. First operand 12506 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:43,037 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-17 17:39:43,240 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-17 17:39:43,664 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:39:43,827 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-17 17:39:44,242 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-17 17:39:44,425 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 55 [2020-12-17 17:39:44,576 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-17 17:39:44,758 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:39:44,921 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-17 17:39:44,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:44,933 INFO L93 Difference]: Finished difference Result 12538 states and 26214 transitions. [2020-12-17 17:39:44,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-17 17:39:44,934 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:44,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:44,947 INFO L225 Difference]: With dead ends: 12538 [2020-12-17 17:39:44,947 INFO L226 Difference]: Without dead ends: 12538 [2020-12-17 17:39:44,947 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 122 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=286, Invalid=770, Unknown=0, NotChecked=0, Total=1056 [2020-12-17 17:39:44,948 INFO L78 Accepts]: Start accepts. Automaton has 12538 states. Word has length 101 [2020-12-17 17:39:44,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:44,948 INFO L481 AbstractCegarLoop]: Abstraction has 12538 states. [2020-12-17 17:39:44,948 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:44,948 INFO L276 IsEmpty]: Start isEmpty. Operand 12538 states. [2020-12-17 17:39:44,958 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:44,958 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:44,958 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:44,958 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-12-17 17:39:44,958 INFO L429 AbstractCegarLoop]: === Iteration 27 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:44,959 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:44,959 INFO L82 PathProgramCache]: Analyzing trace with hash 1493531664, now seen corresponding path program 22 times [2020-12-17 17:39:44,959 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:44,959 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1486413673] [2020-12-17 17:39:44,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:45,799 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:45,800 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1486413673] [2020-12-17 17:39:45,800 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:45,800 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:45,800 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1964436894] [2020-12-17 17:39:45,800 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:45,801 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:45,801 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:45,801 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:45,802 INFO L87 Difference]: Start difference. First operand 12538 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:46,914 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-17 17:39:47,103 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:39:47,308 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:39:47,663 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 46 [2020-12-17 17:39:47,829 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-17 17:39:47,993 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 51 [2020-12-17 17:39:48,251 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 48 [2020-12-17 17:39:48,422 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-12-17 17:39:48,586 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 43 [2020-12-17 17:39:48,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:48,604 INFO L93 Difference]: Finished difference Result 12534 states and 26210 transitions. [2020-12-17 17:39:48,605 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:39:48,605 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:48,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:48,618 INFO L225 Difference]: With dead ends: 12534 [2020-12-17 17:39:48,618 INFO L226 Difference]: Without dead ends: 12534 [2020-12-17 17:39:48,618 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=295, Invalid=827, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:39:48,618 INFO L78 Accepts]: Start accepts. Automaton has 12534 states. Word has length 101 [2020-12-17 17:39:48,619 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:48,619 INFO L481 AbstractCegarLoop]: Abstraction has 12534 states. [2020-12-17 17:39:48,619 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:48,619 INFO L276 IsEmpty]: Start isEmpty. Operand 12534 states. [2020-12-17 17:39:48,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:48,631 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:48,631 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:48,631 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-12-17 17:39:48,632 INFO L429 AbstractCegarLoop]: === Iteration 28 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:48,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:48,632 INFO L82 PathProgramCache]: Analyzing trace with hash -788095292, now seen corresponding path program 23 times [2020-12-17 17:39:48,632 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:48,632 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1707483433] [2020-12-17 17:39:48,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:48,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:49,360 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:49,361 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1707483433] [2020-12-17 17:39:49,361 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:49,361 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:49,361 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142750499] [2020-12-17 17:39:49,362 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:49,362 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:49,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:49,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:49,363 INFO L87 Difference]: Start difference. First operand 12534 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:50,243 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:50,376 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-17 17:39:50,560 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:39:50,940 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 46 [2020-12-17 17:39:51,109 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 53 [2020-12-17 17:39:51,518 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:39:51,684 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:39:51,834 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:39:52,006 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-17 17:39:52,134 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:39:52,283 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:39:52,446 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:39:52,604 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:39:52,984 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:39:52,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:52,999 INFO L93 Difference]: Finished difference Result 14511 states and 30415 transitions. [2020-12-17 17:39:52,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2020-12-17 17:39:53,000 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:53,000 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:53,010 INFO L225 Difference]: With dead ends: 14511 [2020-12-17 17:39:53,010 INFO L226 Difference]: Without dead ends: 14511 [2020-12-17 17:39:53,011 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 190 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=449, Invalid=1033, Unknown=0, NotChecked=0, Total=1482 [2020-12-17 17:39:53,011 INFO L78 Accepts]: Start accepts. Automaton has 14511 states. Word has length 101 [2020-12-17 17:39:53,011 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:53,011 INFO L481 AbstractCegarLoop]: Abstraction has 14511 states. [2020-12-17 17:39:53,011 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:53,011 INFO L276 IsEmpty]: Start isEmpty. Operand 14511 states. [2020-12-17 17:39:53,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:53,022 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:53,022 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:53,022 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2020-12-17 17:39:53,022 INFO L429 AbstractCegarLoop]: === Iteration 29 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:53,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:53,023 INFO L82 PathProgramCache]: Analyzing trace with hash -2037065624, now seen corresponding path program 24 times [2020-12-17 17:39:53,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:53,023 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558359847] [2020-12-17 17:39:53,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:53,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:53,829 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:53,830 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558359847] [2020-12-17 17:39:53,830 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:53,830 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:53,830 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976809031] [2020-12-17 17:39:53,831 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:53,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:53,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:53,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:53,831 INFO L87 Difference]: Start difference. First operand 14511 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:54,684 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:54,821 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-17 17:39:55,018 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 50 [2020-12-17 17:39:55,449 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:39:55,594 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:39:55,766 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:39:56,243 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:56,413 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-17 17:39:56,568 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:39:56,760 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 55 [2020-12-17 17:39:56,884 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:39:57,035 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 52 [2020-12-17 17:39:57,201 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-17 17:39:57,365 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 53 [2020-12-17 17:39:57,645 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 47 [2020-12-17 17:39:57,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:39:57,660 INFO L93 Difference]: Finished difference Result 14543 states and 30445 transitions. [2020-12-17 17:39:57,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-17 17:39:57,661 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:39:57,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:39:57,674 INFO L225 Difference]: With dead ends: 14543 [2020-12-17 17:39:57,675 INFO L226 Difference]: Without dead ends: 14543 [2020-12-17 17:39:57,675 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 218 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=434, Invalid=1126, Unknown=0, NotChecked=0, Total=1560 [2020-12-17 17:39:57,675 INFO L78 Accepts]: Start accepts. Automaton has 14543 states. Word has length 101 [2020-12-17 17:39:57,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:39:57,676 INFO L481 AbstractCegarLoop]: Abstraction has 14543 states. [2020-12-17 17:39:57,676 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:57,676 INFO L276 IsEmpty]: Start isEmpty. Operand 14543 states. [2020-12-17 17:39:57,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:39:57,691 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:39:57,691 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:39:57,691 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2020-12-17 17:39:57,691 INFO L429 AbstractCegarLoop]: === Iteration 30 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:39:57,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:39:57,691 INFO L82 PathProgramCache]: Analyzing trace with hash 1234578528, now seen corresponding path program 25 times [2020-12-17 17:39:57,692 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:39:57,692 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205828942] [2020-12-17 17:39:57,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:39:57,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:39:58,147 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 25 DAG size of output: 20 [2020-12-17 17:39:58,615 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:39:58,615 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205828942] [2020-12-17 17:39:58,615 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:39:58,615 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:39:58,615 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446808960] [2020-12-17 17:39:58,616 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:39:58,616 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:39:58,616 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:39:58,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:39:58,617 INFO L87 Difference]: Start difference. First operand 14543 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:39:59,412 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 43 [2020-12-17 17:39:59,731 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-12-17 17:39:59,874 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:40:00,026 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:40:00,203 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:40:00,628 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:40:00,780 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 48 [2020-12-17 17:40:00,915 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 45 [2020-12-17 17:40:01,181 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 46 [2020-12-17 17:40:01,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:01,327 INFO L93 Difference]: Finished difference Result 14575 states and 30475 transitions. [2020-12-17 17:40:01,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-17 17:40:01,328 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:01,329 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:01,343 INFO L225 Difference]: With dead ends: 14575 [2020-12-17 17:40:01,343 INFO L226 Difference]: Without dead ends: 14575 [2020-12-17 17:40:01,344 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=320, Invalid=870, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:40:01,344 INFO L78 Accepts]: Start accepts. Automaton has 14575 states. Word has length 101 [2020-12-17 17:40:01,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:01,344 INFO L481 AbstractCegarLoop]: Abstraction has 14575 states. [2020-12-17 17:40:01,344 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:01,344 INFO L276 IsEmpty]: Start isEmpty. Operand 14575 states. [2020-12-17 17:40:01,358 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:01,358 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:01,358 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:01,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2020-12-17 17:40:01,359 INFO L429 AbstractCegarLoop]: === Iteration 31 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:01,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:01,359 INFO L82 PathProgramCache]: Analyzing trace with hash -164714728, now seen corresponding path program 26 times [2020-12-17 17:40:01,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:01,359 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [360376493] [2020-12-17 17:40:01,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:02,209 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:02,209 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [360376493] [2020-12-17 17:40:02,209 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:02,210 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:02,210 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734623520] [2020-12-17 17:40:02,210 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:02,210 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:02,210 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:02,211 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:02,211 INFO L87 Difference]: Start difference. First operand 14575 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:03,348 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:40:03,549 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:40:04,800 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:04,801 INFO L93 Difference]: Finished difference Result 14607 states and 30505 transitions. [2020-12-17 17:40:04,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:40:04,802 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:04,802 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:04,813 INFO L225 Difference]: With dead ends: 14607 [2020-12-17 17:40:04,813 INFO L226 Difference]: Without dead ends: 14607 [2020-12-17 17:40:04,814 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=284, Invalid=838, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:40:04,814 INFO L78 Accepts]: Start accepts. Automaton has 14607 states. Word has length 101 [2020-12-17 17:40:04,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:04,814 INFO L481 AbstractCegarLoop]: Abstraction has 14607 states. [2020-12-17 17:40:04,815 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:04,815 INFO L276 IsEmpty]: Start isEmpty. Operand 14607 states. [2020-12-17 17:40:04,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:04,826 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:04,827 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:04,827 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2020-12-17 17:40:04,827 INFO L429 AbstractCegarLoop]: === Iteration 32 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:04,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:04,827 INFO L82 PathProgramCache]: Analyzing trace with hash -1210248600, now seen corresponding path program 27 times [2020-12-17 17:40:04,828 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:04,828 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [142716032] [2020-12-17 17:40:04,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:05,687 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:05,688 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [142716032] [2020-12-17 17:40:05,688 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:05,688 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:05,688 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106428690] [2020-12-17 17:40:05,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:05,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:05,689 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:05,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:05,689 INFO L87 Difference]: Start difference. First operand 14607 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:06,591 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-12-17 17:40:06,754 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:40:06,901 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:40:07,088 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:40:08,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:08,235 INFO L93 Difference]: Finished difference Result 14603 states and 30501 transitions. [2020-12-17 17:40:08,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-17 17:40:08,236 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:08,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:08,250 INFO L225 Difference]: With dead ends: 14603 [2020-12-17 17:40:08,250 INFO L226 Difference]: Without dead ends: 14603 [2020-12-17 17:40:08,251 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 162 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=309, Invalid=881, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:40:08,251 INFO L78 Accepts]: Start accepts. Automaton has 14603 states. Word has length 101 [2020-12-17 17:40:08,251 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:08,252 INFO L481 AbstractCegarLoop]: Abstraction has 14603 states. [2020-12-17 17:40:08,252 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:08,252 INFO L276 IsEmpty]: Start isEmpty. Operand 14603 states. [2020-12-17 17:40:08,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:08,268 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:08,269 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:08,269 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2020-12-17 17:40:08,269 INFO L429 AbstractCegarLoop]: === Iteration 33 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:08,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:08,269 INFO L82 PathProgramCache]: Analyzing trace with hash 2041866480, now seen corresponding path program 28 times [2020-12-17 17:40:08,270 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:08,270 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [341554515] [2020-12-17 17:40:08,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:08,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:08,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:08,982 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [341554515] [2020-12-17 17:40:08,982 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:08,982 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:08,982 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228224993] [2020-12-17 17:40:08,982 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:08,983 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:08,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:08,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:08,984 INFO L87 Difference]: Start difference. First operand 14603 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:10,037 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 43 DAG size of output: 39 [2020-12-17 17:40:10,222 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:40:10,366 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-17 17:40:10,577 WARN L193 SmtUtils]: Spent 140.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:40:10,953 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 42 [2020-12-17 17:40:11,174 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-17 17:40:11,371 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 54 [2020-12-17 17:40:11,979 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:40:12,110 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-17 17:40:12,286 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-17 17:40:12,546 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:40:12,851 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:40:13,121 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:40:13,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:13,134 INFO L93 Difference]: Finished difference Result 14873 states and 30951 transitions. [2020-12-17 17:40:13,135 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-17 17:40:13,135 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:13,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:13,150 INFO L225 Difference]: With dead ends: 14873 [2020-12-17 17:40:13,151 INFO L226 Difference]: Without dead ends: 14873 [2020-12-17 17:40:13,151 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 220 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=488, Invalid=1152, Unknown=0, NotChecked=0, Total=1640 [2020-12-17 17:40:13,151 INFO L78 Accepts]: Start accepts. Automaton has 14873 states. Word has length 101 [2020-12-17 17:40:13,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:13,152 INFO L481 AbstractCegarLoop]: Abstraction has 14873 states. [2020-12-17 17:40:13,152 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:13,152 INFO L276 IsEmpty]: Start isEmpty. Operand 14873 states. [2020-12-17 17:40:13,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:13,165 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:13,166 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:13,166 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2020-12-17 17:40:13,166 INFO L429 AbstractCegarLoop]: === Iteration 34 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:13,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:13,166 INFO L82 PathProgramCache]: Analyzing trace with hash 792896148, now seen corresponding path program 29 times [2020-12-17 17:40:13,166 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:13,166 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614631481] [2020-12-17 17:40:13,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:13,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:13,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:13,942 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614631481] [2020-12-17 17:40:13,943 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:13,943 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:13,943 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065510895] [2020-12-17 17:40:13,943 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:13,943 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:13,943 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:13,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:13,944 INFO L87 Difference]: Start difference. First operand 14873 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:15,020 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:40:15,163 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-17 17:40:15,377 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:40:16,147 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:40:16,289 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:40:16,482 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:40:17,141 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:40:17,274 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-17 17:40:17,461 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-17 17:40:17,730 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:40:18,053 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:40:18,322 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:40:18,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:18,334 INFO L93 Difference]: Finished difference Result 14869 states and 30947 transitions. [2020-12-17 17:40:18,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-17 17:40:18,335 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:18,336 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:18,348 INFO L225 Difference]: With dead ends: 14869 [2020-12-17 17:40:18,348 INFO L226 Difference]: Without dead ends: 14869 [2020-12-17 17:40:18,349 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 250 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=470, Invalid=1252, Unknown=0, NotChecked=0, Total=1722 [2020-12-17 17:40:18,349 INFO L78 Accepts]: Start accepts. Automaton has 14869 states. Word has length 101 [2020-12-17 17:40:18,349 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:18,349 INFO L481 AbstractCegarLoop]: Abstraction has 14869 states. [2020-12-17 17:40:18,349 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:18,349 INFO L276 IsEmpty]: Start isEmpty. Operand 14869 states. [2020-12-17 17:40:18,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:18,361 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:18,362 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:18,362 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2020-12-17 17:40:18,362 INFO L429 AbstractCegarLoop]: === Iteration 35 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:18,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:18,363 INFO L82 PathProgramCache]: Analyzing trace with hash -230426996, now seen corresponding path program 30 times [2020-12-17 17:40:18,363 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:18,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603096632] [2020-12-17 17:40:18,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:18,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:19,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:19,203 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603096632] [2020-12-17 17:40:19,203 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:19,203 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:19,204 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328677669] [2020-12-17 17:40:19,204 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:19,204 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:19,204 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:19,205 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=260, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:19,205 INFO L87 Difference]: Start difference. First operand 14869 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:20,232 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-17 17:40:20,801 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:40:20,957 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:40:21,119 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:40:21,320 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:40:21,985 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:40:22,123 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 44 [2020-12-17 17:40:22,294 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:40:22,549 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:40:22,971 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:40:23,341 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 41 [2020-12-17 17:40:23,351 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:23,352 INFO L93 Difference]: Finished difference Result 14865 states and 30943 transitions. [2020-12-17 17:40:23,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-17 17:40:23,352 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:23,352 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:23,363 INFO L225 Difference]: With dead ends: 14865 [2020-12-17 17:40:23,363 INFO L226 Difference]: Without dead ends: 14865 [2020-12-17 17:40:23,364 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 275 ImplicationChecksByTransitivity, 3.5s TimeCoverageRelationStatistics Valid=459, Invalid=1263, Unknown=0, NotChecked=0, Total=1722 [2020-12-17 17:40:23,364 INFO L78 Accepts]: Start accepts. Automaton has 14865 states. Word has length 101 [2020-12-17 17:40:23,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:23,364 INFO L481 AbstractCegarLoop]: Abstraction has 14865 states. [2020-12-17 17:40:23,365 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:23,365 INFO L276 IsEmpty]: Start isEmpty. Operand 14865 states. [2020-12-17 17:40:23,376 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:23,376 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:23,376 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:23,376 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2020-12-17 17:40:23,376 INFO L429 AbstractCegarLoop]: === Iteration 36 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:23,377 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:23,377 INFO L82 PathProgramCache]: Analyzing trace with hash -502170122, now seen corresponding path program 31 times [2020-12-17 17:40:23,377 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:23,377 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191169251] [2020-12-17 17:40:23,377 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:23,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:24,187 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:24,187 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191169251] [2020-12-17 17:40:24,187 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:24,187 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:24,187 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586288185] [2020-12-17 17:40:24,188 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:24,188 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:24,189 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:24,189 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:24,190 INFO L87 Difference]: Start difference. First operand 14865 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:25,524 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:40:25,682 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:40:25,841 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:40:26,027 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:40:26,530 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 41 [2020-12-17 17:40:27,089 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:27,090 INFO L93 Difference]: Finished difference Result 14861 states and 30939 transitions. [2020-12-17 17:40:27,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-17 17:40:27,091 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:27,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:27,108 INFO L225 Difference]: With dead ends: 14861 [2020-12-17 17:40:27,108 INFO L226 Difference]: Without dead ends: 14861 [2020-12-17 17:40:27,109 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 172 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=333, Invalid=927, Unknown=0, NotChecked=0, Total=1260 [2020-12-17 17:40:27,109 INFO L78 Accepts]: Start accepts. Automaton has 14861 states. Word has length 101 [2020-12-17 17:40:27,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:27,109 INFO L481 AbstractCegarLoop]: Abstraction has 14861 states. [2020-12-17 17:40:27,110 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:27,110 INFO L276 IsEmpty]: Start isEmpty. Operand 14861 states. [2020-12-17 17:40:27,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:27,128 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:27,129 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:27,129 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2020-12-17 17:40:27,129 INFO L429 AbstractCegarLoop]: === Iteration 37 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:27,129 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:27,130 INFO L82 PathProgramCache]: Analyzing trace with hash 1182958, now seen corresponding path program 32 times [2020-12-17 17:40:27,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:27,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430091014] [2020-12-17 17:40:27,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:27,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:28,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:28,008 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430091014] [2020-12-17 17:40:28,008 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:28,008 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:28,008 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115984698] [2020-12-17 17:40:28,009 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:28,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:28,009 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:28,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:28,010 INFO L87 Difference]: Start difference. First operand 14861 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:28,896 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-17 17:40:29,086 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:40:29,280 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:40:29,847 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification. DAG size of input: 39 DAG size of output: 37 [2020-12-17 17:40:30,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:30,399 INFO L93 Difference]: Finished difference Result 14893 states and 30969 transitions. [2020-12-17 17:40:30,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:40:30,400 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:30,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:30,411 INFO L225 Difference]: With dead ends: 14893 [2020-12-17 17:40:30,411 INFO L226 Difference]: Without dead ends: 14893 [2020-12-17 17:40:30,412 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=273, Invalid=849, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:40:30,412 INFO L78 Accepts]: Start accepts. Automaton has 14893 states. Word has length 101 [2020-12-17 17:40:30,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:30,412 INFO L481 AbstractCegarLoop]: Abstraction has 14893 states. [2020-12-17 17:40:30,412 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:30,413 INFO L276 IsEmpty]: Start isEmpty. Operand 14893 states. [2020-12-17 17:40:30,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:30,423 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:30,423 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:30,423 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2020-12-17 17:40:30,424 INFO L429 AbstractCegarLoop]: === Iteration 38 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:30,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:30,424 INFO L82 PathProgramCache]: Analyzing trace with hash -1044350914, now seen corresponding path program 33 times [2020-12-17 17:40:30,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:30,424 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614631388] [2020-12-17 17:40:30,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:30,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:31,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:31,348 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614631388] [2020-12-17 17:40:31,348 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:31,348 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:31,348 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077863922] [2020-12-17 17:40:31,348 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:31,349 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:31,349 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:31,349 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:31,349 INFO L87 Difference]: Start difference. First operand 14893 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:32,293 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-12-17 17:40:32,476 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:40:32,632 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:40:32,828 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:40:33,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:33,899 INFO L93 Difference]: Finished difference Result 14925 states and 30999 transitions. [2020-12-17 17:40:33,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-17 17:40:33,900 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:33,901 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:33,914 INFO L225 Difference]: With dead ends: 14925 [2020-12-17 17:40:33,914 INFO L226 Difference]: Without dead ends: 14925 [2020-12-17 17:40:33,915 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=298, Invalid=892, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:40:33,915 INFO L78 Accepts]: Start accepts. Automaton has 14925 states. Word has length 101 [2020-12-17 17:40:33,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:33,915 INFO L481 AbstractCegarLoop]: Abstraction has 14925 states. [2020-12-17 17:40:33,915 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:33,915 INFO L276 IsEmpty]: Start isEmpty. Operand 14925 states. [2020-12-17 17:40:33,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:33,929 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:33,929 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:33,929 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2020-12-17 17:40:33,929 INFO L429 AbstractCegarLoop]: === Iteration 39 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:33,930 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:33,930 INFO L82 PathProgramCache]: Analyzing trace with hash 425989068, now seen corresponding path program 34 times [2020-12-17 17:40:33,930 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:33,930 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1679035105] [2020-12-17 17:40:33,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:33,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:34,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:34,849 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1679035105] [2020-12-17 17:40:34,849 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:34,849 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:34,850 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306141719] [2020-12-17 17:40:34,850 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:34,850 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:34,850 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:34,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:34,851 INFO L87 Difference]: Start difference. First operand 14925 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:35,882 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-12-17 17:40:36,068 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-17 17:40:36,217 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:40:36,421 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:40:37,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:37,663 INFO L93 Difference]: Finished difference Result 14921 states and 30995 transitions. [2020-12-17 17:40:37,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2020-12-17 17:40:37,664 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:37,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:37,681 INFO L225 Difference]: With dead ends: 14921 [2020-12-17 17:40:37,682 INFO L226 Difference]: Without dead ends: 14921 [2020-12-17 17:40:37,682 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 173 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=322, Invalid=938, Unknown=0, NotChecked=0, Total=1260 [2020-12-17 17:40:37,682 INFO L78 Accepts]: Start accepts. Automaton has 14921 states. Word has length 101 [2020-12-17 17:40:37,683 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:37,683 INFO L481 AbstractCegarLoop]: Abstraction has 14921 states. [2020-12-17 17:40:37,683 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:37,683 INFO L276 IsEmpty]: Start isEmpty. Operand 14921 states. [2020-12-17 17:40:37,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:37,703 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:37,703 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:37,703 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2020-12-17 17:40:37,704 INFO L429 AbstractCegarLoop]: === Iteration 40 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:37,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:37,705 INFO L82 PathProgramCache]: Analyzing trace with hash 326384374, now seen corresponding path program 35 times [2020-12-17 17:40:37,705 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:37,705 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1587426022] [2020-12-17 17:40:37,705 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:37,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:38,582 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:38,582 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1587426022] [2020-12-17 17:40:38,582 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:38,583 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:38,583 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573509334] [2020-12-17 17:40:38,583 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:38,583 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:38,584 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:38,584 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=261, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:38,584 INFO L87 Difference]: Start difference. First operand 14921 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:39,441 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 44 [2020-12-17 17:40:39,642 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 48 [2020-12-17 17:40:39,839 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 54 [2020-12-17 17:40:40,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:40,493 INFO L93 Difference]: Finished difference Result 14953 states and 31025 transitions. [2020-12-17 17:40:40,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-17 17:40:40,494 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:40,494 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:40,508 INFO L225 Difference]: With dead ends: 14953 [2020-12-17 17:40:40,508 INFO L226 Difference]: Without dead ends: 14953 [2020-12-17 17:40:40,508 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=264, Invalid=858, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:40:40,509 INFO L78 Accepts]: Start accepts. Automaton has 14953 states. Word has length 101 [2020-12-17 17:40:40,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:40,509 INFO L481 AbstractCegarLoop]: Abstraction has 14953 states. [2020-12-17 17:40:40,509 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:40,509 INFO L276 IsEmpty]: Start isEmpty. Operand 14953 states. [2020-12-17 17:40:40,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:40,521 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:40,522 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:40,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2020-12-17 17:40:40,522 INFO L429 AbstractCegarLoop]: === Iteration 41 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:40,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:40,522 INFO L82 PathProgramCache]: Analyzing trace with hash 682810952, now seen corresponding path program 36 times [2020-12-17 17:40:40,522 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:40,522 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2131658501] [2020-12-17 17:40:40,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:40,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:41,349 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:41,350 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2131658501] [2020-12-17 17:40:41,350 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:41,350 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:41,350 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732515104] [2020-12-17 17:40:41,350 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:41,351 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:41,351 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:41,351 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:41,351 INFO L87 Difference]: Start difference. First operand 14953 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:42,128 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-17 17:40:42,327 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:40:42,523 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:40:43,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:43,218 INFO L93 Difference]: Finished difference Result 14987 states and 31057 transitions. [2020-12-17 17:40:43,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-17 17:40:43,219 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:43,219 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:43,234 INFO L225 Difference]: With dead ends: 14987 [2020-12-17 17:40:43,234 INFO L226 Difference]: Without dead ends: 14987 [2020-12-17 17:40:43,234 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 160 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=263, Invalid=859, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:40:43,234 INFO L78 Accepts]: Start accepts. Automaton has 14987 states. Word has length 101 [2020-12-17 17:40:43,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:43,235 INFO L481 AbstractCegarLoop]: Abstraction has 14987 states. [2020-12-17 17:40:43,235 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:43,235 INFO L276 IsEmpty]: Start isEmpty. Operand 14987 states. [2020-12-17 17:40:43,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:43,248 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:43,249 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:43,249 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2020-12-17 17:40:43,249 INFO L429 AbstractCegarLoop]: === Iteration 42 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:43,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:43,249 INFO L82 PathProgramCache]: Analyzing trace with hash 623781080, now seen corresponding path program 37 times [2020-12-17 17:40:43,249 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:43,249 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895508561] [2020-12-17 17:40:43,249 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:43,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:44,278 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:44,278 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895508561] [2020-12-17 17:40:44,279 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:44,279 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:44,279 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1194568861] [2020-12-17 17:40:44,279 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:44,279 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:44,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:44,280 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=262, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:44,280 INFO L87 Difference]: Start difference. First operand 14987 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:45,113 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-12-17 17:40:45,295 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:40:45,449 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:40:45,650 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:40:46,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:46,408 INFO L93 Difference]: Finished difference Result 15017 states and 31085 transitions. [2020-12-17 17:40:46,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:40:46,409 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:46,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:46,426 INFO L225 Difference]: With dead ends: 15017 [2020-12-17 17:40:46,426 INFO L226 Difference]: Without dead ends: 15017 [2020-12-17 17:40:46,427 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 177 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=288, Invalid=902, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:40:46,427 INFO L78 Accepts]: Start accepts. Automaton has 15017 states. Word has length 101 [2020-12-17 17:40:46,427 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:46,427 INFO L481 AbstractCegarLoop]: Abstraction has 15017 states. [2020-12-17 17:40:46,428 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:46,428 INFO L276 IsEmpty]: Start isEmpty. Operand 15017 states. [2020-12-17 17:40:46,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:46,443 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:46,443 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:46,443 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2020-12-17 17:40:46,443 INFO L429 AbstractCegarLoop]: === Iteration 43 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:46,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:46,444 INFO L82 PathProgramCache]: Analyzing trace with hash -807716776, now seen corresponding path program 38 times [2020-12-17 17:40:46,444 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:46,444 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880211909] [2020-12-17 17:40:46,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:46,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:47,267 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:47,268 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880211909] [2020-12-17 17:40:47,268 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:47,268 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:47,268 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733986536] [2020-12-17 17:40:47,269 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:47,269 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:47,269 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:47,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:47,270 INFO L87 Difference]: Start difference. First operand 15017 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:48,115 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 44 [2020-12-17 17:40:48,310 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 48 [2020-12-17 17:40:48,503 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:40:49,192 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:49,192 INFO L93 Difference]: Finished difference Result 15049 states and 31115 transitions. [2020-12-17 17:40:49,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-12-17 17:40:49,193 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:49,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:49,206 INFO L225 Difference]: With dead ends: 15049 [2020-12-17 17:40:49,207 INFO L226 Difference]: Without dead ends: 15049 [2020-12-17 17:40:49,207 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 140 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=262, Invalid=860, Unknown=0, NotChecked=0, Total=1122 [2020-12-17 17:40:49,207 INFO L78 Accepts]: Start accepts. Automaton has 15049 states. Word has length 101 [2020-12-17 17:40:49,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:49,208 INFO L481 AbstractCegarLoop]: Abstraction has 15049 states. [2020-12-17 17:40:49,208 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:49,208 INFO L276 IsEmpty]: Start isEmpty. Operand 15049 states. [2020-12-17 17:40:49,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:49,222 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:49,222 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:49,222 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2020-12-17 17:40:49,222 INFO L429 AbstractCegarLoop]: === Iteration 44 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:49,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:49,223 INFO L82 PathProgramCache]: Analyzing trace with hash -866746648, now seen corresponding path program 39 times [2020-12-17 17:40:49,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:49,223 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112262817] [2020-12-17 17:40:49,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:49,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:50,133 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:50,133 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112262817] [2020-12-17 17:40:50,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:50,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:50,133 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1881887497] [2020-12-17 17:40:50,133 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:50,134 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:50,134 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:50,134 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:50,134 INFO L87 Difference]: Start difference. First operand 15049 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:51,174 WARN L193 SmtUtils]: Spent 106.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 41 [2020-12-17 17:40:51,343 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:40:51,494 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:40:51,692 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:40:52,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:52,469 INFO L93 Difference]: Finished difference Result 15081 states and 31145 transitions. [2020-12-17 17:40:52,470 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-12-17 17:40:52,470 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:52,470 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:52,483 INFO L225 Difference]: With dead ends: 15081 [2020-12-17 17:40:52,484 INFO L226 Difference]: Without dead ends: 15081 [2020-12-17 17:40:52,484 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 156 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=287, Invalid=903, Unknown=0, NotChecked=0, Total=1190 [2020-12-17 17:40:52,484 INFO L78 Accepts]: Start accepts. Automaton has 15081 states. Word has length 101 [2020-12-17 17:40:52,484 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:52,485 INFO L481 AbstractCegarLoop]: Abstraction has 15081 states. [2020-12-17 17:40:52,485 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:52,485 INFO L276 IsEmpty]: Start isEmpty. Operand 15081 states. [2020-12-17 17:40:52,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2020-12-17 17:40:52,497 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:52,497 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:52,497 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2020-12-17 17:40:52,497 INFO L429 AbstractCegarLoop]: === Iteration 45 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:52,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:52,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1294019348, now seen corresponding path program 40 times [2020-12-17 17:40:52,498 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:52,498 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315477337] [2020-12-17 17:40:52,498 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:52,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:53,371 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:53,371 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315477337] [2020-12-17 17:40:53,372 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:53,372 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-12-17 17:40:53,372 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [55134016] [2020-12-17 17:40:53,372 INFO L461 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-12-17 17:40:53,372 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:53,372 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-12-17 17:40:53,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-12-17 17:40:53,373 INFO L87 Difference]: Start difference. First operand 15081 states. Second operand has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:54,269 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 43 [2020-12-17 17:40:54,459 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 42 [2020-12-17 17:40:54,651 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-17 17:40:54,803 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 47 [2020-12-17 17:40:55,009 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:40:55,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:40:55,766 INFO L93 Difference]: Finished difference Result 15077 states and 31141 transitions. [2020-12-17 17:40:55,767 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-12-17 17:40:55,768 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 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 101 [2020-12-17 17:40:55,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:40:55,782 INFO L225 Difference]: With dead ends: 15077 [2020-12-17 17:40:55,782 INFO L226 Difference]: Without dead ends: 15077 [2020-12-17 17:40:55,783 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=311, Invalid=949, Unknown=0, NotChecked=0, Total=1260 [2020-12-17 17:40:55,783 INFO L78 Accepts]: Start accepts. Automaton has 15077 states. Word has length 101 [2020-12-17 17:40:55,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:40:55,784 INFO L481 AbstractCegarLoop]: Abstraction has 15077 states. [2020-12-17 17:40:55,784 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 18 states, 18 states have (on average 5.611111111111111) internal successors, (101), 18 states have internal predecessors, (101), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:55,784 INFO L276 IsEmpty]: Start isEmpty. Operand 15077 states. [2020-12-17 17:40:55,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:40:55,798 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:40:55,798 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:40:55,798 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2020-12-17 17:40:55,798 INFO L429 AbstractCegarLoop]: === Iteration 46 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:40:55,799 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:40:55,799 INFO L82 PathProgramCache]: Analyzing trace with hash -1244963182, now seen corresponding path program 1 times [2020-12-17 17:40:55,799 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:40:55,799 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [491482519] [2020-12-17 17:40:55,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:40:55,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:40:57,240 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:40:57,241 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [491482519] [2020-12-17 17:40:57,241 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:40:57,241 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:40:57,241 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530339330] [2020-12-17 17:40:57,241 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:40:57,241 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:40:57,242 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:40:57,242 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=498, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:40:57,242 INFO L87 Difference]: Start difference. First operand 15077 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:40:58,011 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 38 [2020-12-17 17:40:58,389 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-12-17 17:40:58,587 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-12-17 17:40:58,832 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2020-12-17 17:40:59,034 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-12-17 17:40:59,523 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 55 [2020-12-17 17:40:59,747 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 61 [2020-12-17 17:40:59,909 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-17 17:41:00,245 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 63 [2020-12-17 17:41:00,455 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-17 17:41:00,925 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 61 [2020-12-17 17:41:01,190 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:41:01,488 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-17 17:41:01,657 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 54 [2020-12-17 17:41:01,827 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:41:02,002 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-17 17:41:02,189 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-12-17 17:41:02,353 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-17 17:41:02,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:02,370 INFO L93 Difference]: Finished difference Result 22383 states and 46098 transitions. [2020-12-17 17:41:02,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-17 17:41:02,371 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:02,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:02,391 INFO L225 Difference]: With dead ends: 22383 [2020-12-17 17:41:02,391 INFO L226 Difference]: Without dead ends: 22220 [2020-12-17 17:41:02,392 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 367 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=414, Invalid=1842, Unknown=0, NotChecked=0, Total=2256 [2020-12-17 17:41:02,392 INFO L78 Accepts]: Start accepts. Automaton has 22220 states. Word has length 107 [2020-12-17 17:41:02,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:02,393 INFO L481 AbstractCegarLoop]: Abstraction has 22220 states. [2020-12-17 17:41:02,393 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:02,393 INFO L276 IsEmpty]: Start isEmpty. Operand 22220 states. [2020-12-17 17:41:02,412 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:02,412 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:02,412 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:02,412 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable45 [2020-12-17 17:41:02,412 INFO L429 AbstractCegarLoop]: === Iteration 47 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:02,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:02,413 INFO L82 PathProgramCache]: Analyzing trace with hash -1976730970, now seen corresponding path program 2 times [2020-12-17 17:41:02,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:02,413 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [972852468] [2020-12-17 17:41:02,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:02,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:03,820 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:03,820 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [972852468] [2020-12-17 17:41:03,820 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:03,820 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:41:03,821 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [770344133] [2020-12-17 17:41:03,821 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:41:03,821 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:03,821 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:41:03,822 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:41:03,822 INFO L87 Difference]: Start difference. First operand 22220 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:04,652 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-17 17:41:04,868 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-12-17 17:41:05,072 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-12-17 17:41:05,317 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2020-12-17 17:41:05,545 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-17 17:41:05,829 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 34 DAG size of output: 32 [2020-12-17 17:41:06,267 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-12-17 17:41:06,566 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-12-17 17:41:06,751 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-17 17:41:07,172 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 66 [2020-12-17 17:41:07,839 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 69 [2020-12-17 17:41:08,088 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-12-17 17:41:08,303 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 59 [2020-12-17 17:41:08,604 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-17 17:41:08,967 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-17 17:41:09,176 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-17 17:41:09,378 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-17 17:41:09,575 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-17 17:41:09,774 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 60 [2020-12-17 17:41:09,951 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 57 [2020-12-17 17:41:09,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:09,969 INFO L93 Difference]: Finished difference Result 22308 states and 45876 transitions. [2020-12-17 17:41:09,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-17 17:41:09,970 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:09,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:09,990 INFO L225 Difference]: With dead ends: 22308 [2020-12-17 17:41:09,990 INFO L226 Difference]: Without dead ends: 22187 [2020-12-17 17:41:09,991 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 2 SyntacticMatches, 2 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 385 ImplicationChecksByTransitivity, 5.4s TimeCoverageRelationStatistics Valid=432, Invalid=1920, Unknown=0, NotChecked=0, Total=2352 [2020-12-17 17:41:09,991 INFO L78 Accepts]: Start accepts. Automaton has 22187 states. Word has length 107 [2020-12-17 17:41:09,991 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:09,991 INFO L481 AbstractCegarLoop]: Abstraction has 22187 states. [2020-12-17 17:41:09,991 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:09,991 INFO L276 IsEmpty]: Start isEmpty. Operand 22187 states. [2020-12-17 17:41:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:10,009 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:10,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:10,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable46 [2020-12-17 17:41:10,009 INFO L429 AbstractCegarLoop]: === Iteration 48 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:10,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:10,010 INFO L82 PathProgramCache]: Analyzing trace with hash 26748470, now seen corresponding path program 3 times [2020-12-17 17:41:10,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:10,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1242363092] [2020-12-17 17:41:10,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:10,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:11,686 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:11,687 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1242363092] [2020-12-17 17:41:11,687 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:11,687 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:41:11,687 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2089456077] [2020-12-17 17:41:11,688 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:41:11,688 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:11,688 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:41:11,689 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=499, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:41:11,689 INFO L87 Difference]: Start difference. First operand 22187 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:12,544 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 44 [2020-12-17 17:41:12,759 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 48 [2020-12-17 17:41:12,968 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 54 [2020-12-17 17:41:13,216 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 56 [2020-12-17 17:41:13,449 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 52 [2020-12-17 17:41:14,016 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-12-17 17:41:14,278 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 63 [2020-12-17 17:41:14,443 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-17 17:41:15,237 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 85 DAG size of output: 63 [2020-12-17 17:41:15,606 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 88 DAG size of output: 66 [2020-12-17 17:41:15,836 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 62 [2020-12-17 17:41:16,240 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-17 17:41:16,384 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:16,542 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 49 DAG size of output: 45 [2020-12-17 17:41:16,705 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:16,877 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:41:17,023 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:17,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:17,044 INFO L93 Difference]: Finished difference Result 22284 states and 45780 transitions. [2020-12-17 17:41:17,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-17 17:41:17,045 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:17,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:17,062 INFO L225 Difference]: With dead ends: 22284 [2020-12-17 17:41:17,063 INFO L226 Difference]: Without dead ends: 21948 [2020-12-17 17:41:17,063 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 343 ImplicationChecksByTransitivity, 5.0s TimeCoverageRelationStatistics Valid=387, Invalid=1775, Unknown=0, NotChecked=0, Total=2162 [2020-12-17 17:41:17,063 INFO L78 Accepts]: Start accepts. Automaton has 21948 states. Word has length 107 [2020-12-17 17:41:17,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:17,064 INFO L481 AbstractCegarLoop]: Abstraction has 21948 states. [2020-12-17 17:41:17,064 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:17,064 INFO L276 IsEmpty]: Start isEmpty. Operand 21948 states. [2020-12-17 17:41:17,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:17,082 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:17,082 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:17,082 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable47 [2020-12-17 17:41:17,082 INFO L429 AbstractCegarLoop]: === Iteration 49 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:17,082 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:17,082 INFO L82 PathProgramCache]: Analyzing trace with hash -388480488, now seen corresponding path program 4 times [2020-12-17 17:41:17,082 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:17,083 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1734030113] [2020-12-17 17:41:17,083 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:17,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:18,966 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:18,967 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1734030113] [2020-12-17 17:41:18,967 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:18,967 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-12-17 17:41:18,967 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760746488] [2020-12-17 17:41:18,967 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-12-17 17:41:18,968 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:18,968 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-12-17 17:41:18,968 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2020-12-17 17:41:18,968 INFO L87 Difference]: Start difference. First operand 21948 states. Second operand has 27 states, 27 states have (on average 3.962962962962963) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:20,507 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-12-17 17:41:20,728 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-12-17 17:41:21,002 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2020-12-17 17:41:21,220 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:41:21,765 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 58 [2020-12-17 17:41:21,964 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:22,580 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-12-17 17:41:22,834 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-12-17 17:41:23,154 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-12-17 17:41:23,385 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-12-17 17:41:23,963 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-12-17 17:41:24,157 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:41:24,317 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:24,620 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:24,795 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:41:24,948 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:24,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:24,970 INFO L93 Difference]: Finished difference Result 22013 states and 45254 transitions. [2020-12-17 17:41:24,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-12-17 17:41:24,970 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.962962962962963) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:24,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:24,992 INFO L225 Difference]: With dead ends: 22013 [2020-12-17 17:41:24,992 INFO L226 Difference]: Without dead ends: 21818 [2020-12-17 17:41:24,992 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 590 ImplicationChecksByTransitivity, 5.8s TimeCoverageRelationStatistics Valid=535, Invalid=2545, Unknown=0, NotChecked=0, Total=3080 [2020-12-17 17:41:24,993 INFO L78 Accepts]: Start accepts. Automaton has 21818 states. Word has length 107 [2020-12-17 17:41:24,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:24,993 INFO L481 AbstractCegarLoop]: Abstraction has 21818 states. [2020-12-17 17:41:24,993 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.962962962962963) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:24,993 INFO L276 IsEmpty]: Start isEmpty. Operand 21818 states. [2020-12-17 17:41:25,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:25,017 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:25,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:25,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable48 [2020-12-17 17:41:25,017 INFO L429 AbstractCegarLoop]: === Iteration 50 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:25,018 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:25,018 INFO L82 PathProgramCache]: Analyzing trace with hash -1391901286, now seen corresponding path program 5 times [2020-12-17 17:41:25,018 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:25,018 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363838935] [2020-12-17 17:41:25,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:26,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:26,918 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363838935] [2020-12-17 17:41:26,918 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:26,918 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [27] imperfect sequences [] total 27 [2020-12-17 17:41:26,918 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219945076] [2020-12-17 17:41:26,919 INFO L461 AbstractCegarLoop]: Interpolant automaton has 27 states [2020-12-17 17:41:26,919 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:26,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2020-12-17 17:41:26,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=65, Invalid=637, Unknown=0, NotChecked=0, Total=702 [2020-12-17 17:41:26,920 INFO L87 Difference]: Start difference. First operand 21818 states. Second operand has 27 states, 27 states have (on average 3.962962962962963) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:28,280 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 47 [2020-12-17 17:41:28,511 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 51 [2020-12-17 17:41:28,727 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 57 [2020-12-17 17:41:29,000 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 78 DAG size of output: 59 [2020-12-17 17:41:29,217 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:41:29,754 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:30,282 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-17 17:41:30,531 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 61 [2020-12-17 17:41:30,800 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification. DAG size of input: 84 DAG size of output: 67 [2020-12-17 17:41:31,131 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 69 [2020-12-17 17:41:31,365 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 64 [2020-12-17 17:41:31,769 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 60 [2020-12-17 17:41:31,983 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 53 [2020-12-17 17:41:32,137 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:41:32,289 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-12-17 17:41:32,864 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 44 [2020-12-17 17:41:33,197 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:33,390 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:41:33,546 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:33,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:33,580 INFO L93 Difference]: Finished difference Result 22955 states and 46951 transitions. [2020-12-17 17:41:33,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-12-17 17:41:33,581 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 3.962962962962963) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:33,581 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:33,597 INFO L225 Difference]: With dead ends: 22955 [2020-12-17 17:41:33,597 INFO L226 Difference]: Without dead ends: 22652 [2020-12-17 17:41:33,597 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 58 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 740 ImplicationChecksByTransitivity, 6.4s TimeCoverageRelationStatistics Valid=600, Invalid=2940, Unknown=0, NotChecked=0, Total=3540 [2020-12-17 17:41:33,597 INFO L78 Accepts]: Start accepts. Automaton has 22652 states. Word has length 107 [2020-12-17 17:41:33,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:33,598 INFO L481 AbstractCegarLoop]: Abstraction has 22652 states. [2020-12-17 17:41:33,598 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 27 states, 27 states have (on average 3.962962962962963) internal successors, (107), 27 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:33,598 INFO L276 IsEmpty]: Start isEmpty. Operand 22652 states. [2020-12-17 17:41:33,613 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:33,613 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:33,613 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:33,613 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable49 [2020-12-17 17:41:33,613 INFO L429 AbstractCegarLoop]: === Iteration 51 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:33,614 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:33,614 INFO L82 PathProgramCache]: Analyzing trace with hash 1576088942, now seen corresponding path program 6 times [2020-12-17 17:41:33,614 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:33,614 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [574431482] [2020-12-17 17:41:33,614 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:33,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:35,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:35,076 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [574431482] [2020-12-17 17:41:35,076 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:35,076 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:41:35,076 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [604353927] [2020-12-17 17:41:35,076 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:41:35,077 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:35,077 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:41:35,077 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:41:35,077 INFO L87 Difference]: Start difference. First operand 22652 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:36,218 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-17 17:41:36,443 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-17 17:41:36,838 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:41:37,003 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:37,213 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:41:37,495 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-12-17 17:41:37,701 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-17 17:41:38,157 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-17 17:41:38,417 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:38,738 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 56 [2020-12-17 17:41:38,916 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:41:39,104 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:39,301 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-17 17:41:39,499 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-17 17:41:39,678 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-17 17:41:39,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:39,702 INFO L93 Difference]: Finished difference Result 25108 states and 51383 transitions. [2020-12-17 17:41:39,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-17 17:41:39,703 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:39,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:39,726 INFO L225 Difference]: With dead ends: 25108 [2020-12-17 17:41:39,727 INFO L226 Difference]: Without dead ends: 24945 [2020-12-17 17:41:39,727 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 377 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=419, Invalid=1837, Unknown=0, NotChecked=0, Total=2256 [2020-12-17 17:41:39,727 INFO L78 Accepts]: Start accepts. Automaton has 24945 states. Word has length 107 [2020-12-17 17:41:39,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:39,727 INFO L481 AbstractCegarLoop]: Abstraction has 24945 states. [2020-12-17 17:41:39,727 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:39,727 INFO L276 IsEmpty]: Start isEmpty. Operand 24945 states. [2020-12-17 17:41:39,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:39,749 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:39,750 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:39,750 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable50 [2020-12-17 17:41:39,750 INFO L429 AbstractCegarLoop]: === Iteration 52 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:39,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:39,750 INFO L82 PathProgramCache]: Analyzing trace with hash 844321154, now seen corresponding path program 7 times [2020-12-17 17:41:39,750 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:39,750 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1057031681] [2020-12-17 17:41:39,750 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:39,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:41,275 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:41,276 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1057031681] [2020-12-17 17:41:41,276 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:41,276 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:41:41,276 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771647654] [2020-12-17 17:41:41,276 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:41:41,276 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:41,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:41:41,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:41:41,277 INFO L87 Difference]: Start difference. First operand 24945 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:42,000 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification. DAG size of input: 33 DAG size of output: 31 [2020-12-17 17:41:42,589 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-17 17:41:42,815 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-17 17:41:43,224 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:41:43,395 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:43,609 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:41:43,895 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 56 [2020-12-17 17:41:44,386 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 59 [2020-12-17 17:41:44,607 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-17 17:41:44,805 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-17 17:41:45,076 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:45,392 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:41:45,582 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 53 [2020-12-17 17:41:45,774 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 50 [2020-12-17 17:41:45,974 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-17 17:41:46,175 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 58 [2020-12-17 17:41:46,352 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 55 [2020-12-17 17:41:46,373 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:46,373 INFO L93 Difference]: Finished difference Result 25033 states and 51161 transitions. [2020-12-17 17:41:46,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-17 17:41:46,374 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:46,374 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:46,397 INFO L225 Difference]: With dead ends: 25033 [2020-12-17 17:41:46,397 INFO L226 Difference]: Without dead ends: 24912 [2020-12-17 17:41:46,397 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 5 SyntacticMatches, 3 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 393 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=435, Invalid=1917, Unknown=0, NotChecked=0, Total=2352 [2020-12-17 17:41:46,398 INFO L78 Accepts]: Start accepts. Automaton has 24912 states. Word has length 107 [2020-12-17 17:41:46,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:46,398 INFO L481 AbstractCegarLoop]: Abstraction has 24912 states. [2020-12-17 17:41:46,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:46,398 INFO L276 IsEmpty]: Start isEmpty. Operand 24912 states. [2020-12-17 17:41:46,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:46,421 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:46,421 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:46,421 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable51 [2020-12-17 17:41:46,421 INFO L429 AbstractCegarLoop]: === Iteration 53 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:46,422 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:46,422 INFO L82 PathProgramCache]: Analyzing trace with hash -1447166702, now seen corresponding path program 8 times [2020-12-17 17:41:46,422 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:46,422 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [358005074] [2020-12-17 17:41:46,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:46,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:47,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:47,903 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [358005074] [2020-12-17 17:41:47,903 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:47,903 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:41:47,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690722295] [2020-12-17 17:41:47,903 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:41:47,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:47,904 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:41:47,904 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:41:47,904 INFO L87 Difference]: Start difference. First operand 24912 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:49,052 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-17 17:41:49,267 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-17 17:41:49,650 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:41:49,819 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:50,030 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 54 [2020-12-17 17:41:50,511 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2020-12-17 17:41:50,785 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-12-17 17:41:51,005 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-17 17:41:51,589 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:41:51,744 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:41:51,905 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-17 17:41:52,081 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:41:52,257 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-17 17:41:52,408 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:41:52,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:52,429 INFO L93 Difference]: Finished difference Result 25009 states and 51065 transitions. [2020-12-17 17:41:52,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2020-12-17 17:41:52,430 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:52,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:52,449 INFO L225 Difference]: With dead ends: 25009 [2020-12-17 17:41:52,449 INFO L226 Difference]: Without dead ends: 24673 [2020-12-17 17:41:52,449 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 353 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=388, Invalid=1774, Unknown=0, NotChecked=0, Total=2162 [2020-12-17 17:41:52,449 INFO L78 Accepts]: Start accepts. Automaton has 24673 states. Word has length 107 [2020-12-17 17:41:52,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:52,449 INFO L481 AbstractCegarLoop]: Abstraction has 24673 states. [2020-12-17 17:41:52,449 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:52,450 INFO L276 IsEmpty]: Start isEmpty. Operand 24673 states. [2020-12-17 17:41:52,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:52,468 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:52,468 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:52,468 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable52 [2020-12-17 17:41:52,468 INFO L429 AbstractCegarLoop]: === Iteration 54 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:52,469 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:52,469 INFO L82 PathProgramCache]: Analyzing trace with hash -1862395660, now seen corresponding path program 9 times [2020-12-17 17:41:52,469 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:52,469 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [463736436] [2020-12-17 17:41:52,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:41:53,962 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:41:53,962 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [463736436] [2020-12-17 17:41:53,962 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:41:53,962 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:41:53,963 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750235716] [2020-12-17 17:41:53,963 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:41:53,963 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:41:53,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:41:53,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=496, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:41:53,964 INFO L87 Difference]: Start difference. First operand 24673 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:54,988 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-12-17 17:41:55,163 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-17 17:41:55,386 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-17 17:41:55,800 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:41:55,976 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 48 [2020-12-17 17:41:56,430 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 51 [2020-12-17 17:41:56,667 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2020-12-17 17:41:56,950 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 59 [2020-12-17 17:41:57,180 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-17 17:41:57,604 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:41:57,779 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:41:57,928 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 47 [2020-12-17 17:41:58,076 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 46 [2020-12-17 17:41:58,259 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 48 DAG size of output: 44 [2020-12-17 17:41:58,400 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 43 [2020-12-17 17:41:58,576 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:41:58,774 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 52 [2020-12-17 17:41:58,933 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 49 [2020-12-17 17:41:58,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:41:58,970 INFO L93 Difference]: Finished difference Result 24795 states and 50620 transitions. [2020-12-17 17:41:58,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-17 17:41:58,971 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:41:58,971 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:41:58,994 INFO L225 Difference]: With dead ends: 24795 [2020-12-17 17:41:58,994 INFO L226 Difference]: Without dead ends: 24600 [2020-12-17 17:41:58,994 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 5 SyntacticMatches, 4 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 448 ImplicationChecksByTransitivity, 4.6s TimeCoverageRelationStatistics Valid=429, Invalid=2021, Unknown=0, NotChecked=0, Total=2450 [2020-12-17 17:41:58,994 INFO L78 Accepts]: Start accepts. Automaton has 24600 states. Word has length 107 [2020-12-17 17:41:58,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:41:58,995 INFO L481 AbstractCegarLoop]: Abstraction has 24600 states. [2020-12-17 17:41:58,995 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:41:58,995 INFO L276 IsEmpty]: Start isEmpty. Operand 24600 states. [2020-12-17 17:41:59,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:41:59,016 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:41:59,017 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:41:59,017 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable53 [2020-12-17 17:41:59,017 INFO L429 AbstractCegarLoop]: === Iteration 55 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:41:59,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:41:59,017 INFO L82 PathProgramCache]: Analyzing trace with hash -1003773884, now seen corresponding path program 10 times [2020-12-17 17:41:59,017 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:41:59,017 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050058664] [2020-12-17 17:41:59,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:41:59,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:42:00,753 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:42:00,754 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050058664] [2020-12-17 17:42:00,754 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:42:00,754 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [24] imperfect sequences [] total 24 [2020-12-17 17:42:00,754 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682365617] [2020-12-17 17:42:00,754 INFO L461 AbstractCegarLoop]: Interpolant automaton has 24 states [2020-12-17 17:42:00,755 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:42:00,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2020-12-17 17:42:00,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=495, Unknown=0, NotChecked=0, Total=552 [2020-12-17 17:42:00,755 INFO L87 Difference]: Start difference. First operand 24600 states. Second operand has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:42:01,765 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-12-17 17:42:01,938 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-17 17:42:02,162 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-17 17:42:02,581 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:42:02,762 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-17 17:42:02,997 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-17 17:42:03,320 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-17 17:42:03,548 WARN L193 SmtUtils]: Spent 160.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:42:04,066 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-17 17:42:04,352 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 49 [2020-12-17 17:42:04,709 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 57 [2020-12-17 17:42:04,898 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 54 [2020-12-17 17:42:05,103 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-17 17:42:05,295 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:42:05,493 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-17 17:42:05,677 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:42:05,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:42:05,695 INFO L93 Difference]: Finished difference Result 25311 states and 51546 transitions. [2020-12-17 17:42:05,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-12-17 17:42:05,696 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:42:05,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:42:05,720 INFO L225 Difference]: With dead ends: 25311 [2020-12-17 17:42:05,721 INFO L226 Difference]: Without dead ends: 24985 [2020-12-17 17:42:05,721 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 6 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 374 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=431, Invalid=1825, Unknown=0, NotChecked=0, Total=2256 [2020-12-17 17:42:05,721 INFO L78 Accepts]: Start accepts. Automaton has 24985 states. Word has length 107 [2020-12-17 17:42:05,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:42:05,721 INFO L481 AbstractCegarLoop]: Abstraction has 24985 states. [2020-12-17 17:42:05,721 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 24 states, 24 states have (on average 4.458333333333333) internal successors, (107), 24 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:42:05,721 INFO L276 IsEmpty]: Start isEmpty. Operand 24985 states. [2020-12-17 17:42:05,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:42:05,745 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:42:05,745 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:42:05,745 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable54 [2020-12-17 17:42:05,746 INFO L429 AbstractCegarLoop]: === Iteration 56 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:42:05,746 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:42:05,746 INFO L82 PathProgramCache]: Analyzing trace with hash -1735541672, now seen corresponding path program 11 times [2020-12-17 17:42:05,746 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:42:05,746 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [978357597] [2020-12-17 17:42:05,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:42:05,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:42:07,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:42:07,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [978357597] [2020-12-17 17:42:07,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:42:07,056 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-12-17 17:42:07,056 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847868184] [2020-12-17 17:42:07,056 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-17 17:42:07,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:42:07,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-17 17:42:07,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2020-12-17 17:42:07,057 INFO L87 Difference]: Start difference. First operand 24985 states. Second operand has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:42:08,154 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-17 17:42:08,370 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-17 17:42:08,748 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:42:09,103 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-17 17:42:09,298 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:42:09,564 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:42:10,009 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 59 [2020-12-17 17:42:10,227 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-12-17 17:42:10,422 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-17 17:42:10,665 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-17 17:42:10,971 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-17 17:42:11,168 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-17 17:42:11,357 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 49 [2020-12-17 17:42:11,548 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-17 17:42:11,759 WARN L193 SmtUtils]: Spent 167.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 58 [2020-12-17 17:42:11,947 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 61 DAG size of output: 55 [2020-12-17 17:42:11,961 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:42:11,962 INFO L93 Difference]: Finished difference Result 25161 states and 51102 transitions. [2020-12-17 17:42:11,962 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2020-12-17 17:42:11,963 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:42:11,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:42:11,986 INFO L225 Difference]: With dead ends: 25161 [2020-12-17 17:42:11,986 INFO L226 Difference]: Without dead ends: 24919 [2020-12-17 17:42:11,986 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 350 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=429, Invalid=1733, Unknown=0, NotChecked=0, Total=2162 [2020-12-17 17:42:11,986 INFO L78 Accepts]: Start accepts. Automaton has 24919 states. Word has length 107 [2020-12-17 17:42:11,987 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:42:11,987 INFO L481 AbstractCegarLoop]: Abstraction has 24919 states. [2020-12-17 17:42:11,987 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:42:11,987 INFO L276 IsEmpty]: Start isEmpty. Operand 24919 states. [2020-12-17 17:42:12,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:42:12,009 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:42:12,009 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:42:12,009 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable55 [2020-12-17 17:42:12,009 INFO L429 AbstractCegarLoop]: === Iteration 57 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:42:12,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:42:12,010 INFO L82 PathProgramCache]: Analyzing trace with hash 267937768, now seen corresponding path program 12 times [2020-12-17 17:42:12,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:42:12,010 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1774731648] [2020-12-17 17:42:12,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:42:12,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-17 17:42:13,342 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-17 17:42:13,342 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1774731648] [2020-12-17 17:42:13,343 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-17 17:42:13,343 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [22] imperfect sequences [] total 22 [2020-12-17 17:42:13,343 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860470727] [2020-12-17 17:42:13,343 INFO L461 AbstractCegarLoop]: Interpolant automaton has 22 states [2020-12-17 17:42:13,343 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-12-17 17:42:13,344 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2020-12-17 17:42:13,344 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=412, Unknown=0, NotChecked=0, Total=462 [2020-12-17 17:42:13,344 INFO L87 Difference]: Start difference. First operand 24919 states. Second operand has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:42:14,266 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 41 [2020-12-17 17:42:14,437 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 46 [2020-12-17 17:42:14,656 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 48 [2020-12-17 17:42:15,027 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-12-17 17:42:15,200 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification. DAG size of input: 52 DAG size of output: 45 [2020-12-17 17:42:15,398 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 60 DAG size of output: 53 [2020-12-17 17:42:15,833 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 57 [2020-12-17 17:42:16,106 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 67 DAG size of output: 59 [2020-12-17 17:42:16,333 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 58 [2020-12-17 17:42:16,708 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 56 [2020-12-17 17:42:16,915 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 63 DAG size of output: 55 [2020-12-17 17:42:17,084 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 50 [2020-12-17 17:42:17,251 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 58 DAG size of output: 51 [2020-12-17 17:42:17,436 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 47 [2020-12-17 17:42:17,773 WARN L193 SmtUtils]: Spent 306.00 ms on a formula simplification. DAG size of input: 55 DAG size of output: 48 [2020-12-17 17:42:17,967 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-17 17:42:18,171 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 62 DAG size of output: 56 [2020-12-17 17:42:18,346 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 52 [2020-12-17 17:42:18,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-17 17:42:18,369 INFO L93 Difference]: Finished difference Result 25134 states and 50961 transitions. [2020-12-17 17:42:18,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2020-12-17 17:42:18,370 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 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 107 [2020-12-17 17:42:18,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-17 17:42:18,387 INFO L225 Difference]: With dead ends: 25134 [2020-12-17 17:42:18,387 INFO L226 Difference]: Without dead ends: 24646 [2020-12-17 17:42:18,387 INFO L763 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 4 SyntacticMatches, 2 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 395 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=419, Invalid=1837, Unknown=0, NotChecked=0, Total=2256 [2020-12-17 17:42:18,388 INFO L78 Accepts]: Start accepts. Automaton has 24646 states. Word has length 107 [2020-12-17 17:42:18,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-17 17:42:18,388 INFO L481 AbstractCegarLoop]: Abstraction has 24646 states. [2020-12-17 17:42:18,388 INFO L482 AbstractCegarLoop]: Interpolant automaton has has 22 states, 22 states have (on average 4.863636363636363) internal successors, (107), 22 states have internal predecessors, (107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2020-12-17 17:42:18,388 INFO L276 IsEmpty]: Start isEmpty. Operand 24646 states. [2020-12-17 17:42:18,406 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-12-17 17:42:18,406 INFO L496 BasicCegarLoop]: Found error trace [2020-12-17 17:42:18,406 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-17 17:42:18,406 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable56 [2020-12-17 17:42:18,406 INFO L429 AbstractCegarLoop]: === Iteration 58 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-17 17:42:18,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-17 17:42:18,407 INFO L82 PathProgramCache]: Analyzing trace with hash 1541126434, now seen corresponding path program 13 times [2020-12-17 17:42:18,407 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-12-17 17:42:18,407 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1276146870] [2020-12-17 17:42:18,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-17 17:42:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-17 17:42:18,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-17 17:42:18,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-17 17:42:18,458 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-17 17:42:18,515 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-12-17 17:42:18,516 INFO L605 BasicCegarLoop]: Counterexample might be feasible [2020-12-17 17:42:18,516 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable57 [2020-12-17 17:42:18,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.12 05:42:18 BasicIcfg [2020-12-17 17:42:18,679 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-17 17:42:18,683 INFO L168 Benchmark]: Toolchain (without parser) took 227639.26 ms. Allocated memory was 302.0 MB in the beginning and 2.4 GB in the end (delta: 2.1 GB). Free memory was 274.3 MB in the beginning and 1.7 GB in the end (delta: -1.4 GB). Peak memory consumption was 744.9 MB. Max. memory is 16.0 GB. [2020-12-17 17:42:18,683 INFO L168 Benchmark]: CDTParser took 0.71 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. [2020-12-17 17:42:18,684 INFO L168 Benchmark]: CACSL2BoogieTranslator took 1681.40 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 165.7 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.4 MB. Max. memory is 16.0 GB. [2020-12-17 17:42:18,684 INFO L168 Benchmark]: Boogie Procedure Inliner took 77.44 ms. Allocated memory is still 302.0 MB. Free memory was 165.7 MB in the beginning and 162.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2020-12-17 17:42:18,684 INFO L168 Benchmark]: Boogie Preprocessor took 55.03 ms. Allocated memory is still 302.0 MB. Free memory was 162.6 MB in the beginning and 159.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2020-12-17 17:42:18,684 INFO L168 Benchmark]: RCFGBuilder took 995.15 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 159.4 MB in the beginning and 312.0 MB in the end (delta: -152.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.0 GB. [2020-12-17 17:42:18,685 INFO L168 Benchmark]: TraceAbstraction took 224820.34 ms. Allocated memory was 362.8 MB in the beginning and 2.4 GB in the end (delta: 2.1 GB). Free memory was 312.0 MB in the beginning and 1.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 719.9 MB. Max. memory is 16.0 GB. [2020-12-17 17:42:18,686 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.71 ms. Allocated memory is still 302.0 MB. Free memory is still 270.4 MB. There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 1681.40 ms. Allocated memory is still 302.0 MB. Free memory was 274.0 MB in the beginning and 165.7 MB in the end (delta: 108.3 MB). Peak memory consumption was 108.4 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 77.44 ms. Allocated memory is still 302.0 MB. Free memory was 165.7 MB in the beginning and 162.6 MB in the end (delta: 3.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 55.03 ms. Allocated memory is still 302.0 MB. Free memory was 162.6 MB in the beginning and 159.4 MB in the end (delta: 3.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 995.15 ms. Allocated memory was 302.0 MB in the beginning and 362.8 MB in the end (delta: 60.8 MB). Free memory was 159.4 MB in the beginning and 312.0 MB in the end (delta: -152.6 MB). Peak memory consumption was 32.0 MB. Max. memory is 16.0 GB. * TraceAbstraction took 224820.34 ms. Allocated memory was 362.8 MB in the beginning and 2.4 GB in the end (delta: 2.1 GB). Free memory was 312.0 MB in the beginning and 1.7 GB in the end (delta: -1.3 GB). Peak memory consumption was 719.9 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 1671]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; VAL [t1={7:0}, t2={8:0}] [L1688] 0 struct device *my_dev; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1727] 0 return 0; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1733] 0 int ret = my_drv_init(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1734] COND TRUE 0 ret==0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1735] 0 int probe_ret; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1736] 0 struct my_data data; VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1705] 0 data->shared.a = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1706] 0 data->shared.b = 0 VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1707] 0 data->shared.a VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1708] 0 data->shared.b VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1709] 0 int res = __VERIFIER_nondet_int(); VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1710] COND FALSE 0 !(\read(res)) VAL [my_dev={0:0}, t1={7:0}, t2={8:0}] [L1712] 0 my_dev = &data->dev VAL [my_dev={9:24}, t1={7:0}, t2={8:0}] [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, ((void *)0)) VAL [arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 1 struct my_data *data; VAL [arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 1 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 1 data->shared.b [L1696] 1 int lb = data->shared.b; [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, ((void *)0)) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1690] 2 struct my_data *data; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1691] 2 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (my_dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1693] 2 data->shared.a = 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1715] 0 return 0; VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1696] EXPR 2 data->shared.b [L1696] 2 int lb = data->shared.b; [L1699] 1 data->shared.b = lb + 1 VAL [__mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 1 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1737] 0 probe_ret = my_drv_probe(&data) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1738] COND TRUE 0 probe_ret==0 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1699] 2 data->shared.b = lb + 1 VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1701] 2 return 0; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1721] 0 void *status; VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] 0 \read(t1) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1722] FCALL, JOIN 1 pthread_join(t1, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] 0 \read(t2) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1723] FCALL, JOIN 2 pthread_join(t2, &status) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1740] 0 data.shared.a VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND FALSE 0 !(!expression) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1741] 0 data.shared.b VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1675] COND TRUE 0 !expression VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1671] COND FALSE 0 !(0) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] [L1671] 0 __assert_fail ("0", "race-3_2-container_of-global.c", 14, __extension__ __PRETTY_FUNCTION__) VAL [\result={0:0}, __mptr={9:24}, arg={0:0}, arg={0:0}, data={9:0}, lb=0, my_dev={9:24}, t1={7:0}, t2={8:0}] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 154 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 224.5s, OverallIterations: 58, TraceHistogramMax: 1, AutomataDifference: 168.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.2s, HoareTripleCheckerStatistics: 10824 SDtfs, 34964 SDslu, 79688 SDs, 0 SdLazy, 40203 SolverSat, 3024 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 40.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2179 GetRequests, 198 SyntacticMatches, 51 SemanticMatches, 1930 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11503 ImplicationChecksByTransitivity, 151.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24985occurred in iteration=55, 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: 0.1s SsaConstructionTime, 1.6s SatisfiabilityAnalysisTime, 49.1s InterpolantComputationTime, 5717 NumberOfCodeBlocks, 5717 NumberOfCodeBlocksAsserted, 58 NumberOfCheckSat, 5553 ConstructedInterpolants, 0 QuantifiedInterpolants, 8158301 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 57 InterpolantComputations, 57 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...